diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java
index e8f48a6..3b50edc 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/base/LogicalExpressionDeepCopyVisitor.java
@@ -40,7 +40,8 @@
     private final Map<LogicalVariable, LogicalVariable> inVarMapping;
     private final Map<LogicalVariable, LogicalVariable> outVarMapping;
 
-    public LogicalExpressionDeepCopyVisitor(Counter counter, Map<LogicalVariable, LogicalVariable> inVarMapping, Map<LogicalVariable, LogicalVariable> variableMapping) {
+    public LogicalExpressionDeepCopyVisitor(Counter counter, Map<LogicalVariable, LogicalVariable> inVarMapping,
+            Map<LogicalVariable, LogicalVariable> variableMapping) {
         this.counter = counter;
         this.inVarMapping = inVarMapping;
         this.outVarMapping = variableMapping;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java
index 66ae216..7d95978 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/algebra/operators/physical/IndexSearchPOperator.java
@@ -68,7 +68,7 @@
         }
         return keyIndexes;
     }
-    
+
     public PhysicalRequirements getRequiredPropertiesForChildren(ILogicalOperator op,
             IPhysicalPropertiesVector reqdByParent) {
         if (requiresBroadcast) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
index 7fc9bcf..10848e8 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/jobgen/AqlLogicalExpressionJobGen.java
@@ -143,7 +143,7 @@
         IFunctionDescriptor fd = null;
         if (!(expr.getFunctionInfo() instanceof IExternalFunctionInfo)) {
             AqlMetadataProvider mp = (AqlMetadataProvider) context.getMetadataProvider();
- IDataFormat format = FormatUtils.getDefaultFormat();
+            IDataFormat format = FormatUtils.getDefaultFormat();
             fd = format.resolveFunction(expr, env);
         } else {
             try {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/handle/IHandle.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/handle/IHandle.java
index 4506654..405f966 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/handle/IHandle.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/handle/IHandle.java
@@ -15,17 +15,16 @@
 package edu.uci.ics.asterix.optimizer.handle;
 
 /**
- * 
  * A handle is a way of accessing an ADM instance or a collection of ADM
  * instances nested within another ADM instance.
  * 
  * @author Nicola
- * 
  */
 
 public interface IHandle {
     public enum HandleType {
-        FIELD_INDEX_AND_TYPE, FIELD_NAME
+        FIELD_INDEX_AND_TYPE,
+        FIELD_NAME
     }
 
     public HandleType getHandleType();
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java
index bf18cdb..05051de 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/AsterixInlineVariablesRule.java
@@ -18,7 +18,7 @@
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineVariablesRule;
 
 public class AsterixInlineVariablesRule extends InlineVariablesRule {
-    
+
     public AsterixInlineVariablesRule() {
         // Do not inline field accesses because doing so would interfere with our access method rewrites.
         // TODO: For now we must also exclude record constructor functions to avoid breaking our type casting rules
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByHandleFieldAccessRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByHandleFieldAccessRule.java
index 575490b..69b23f0 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByHandleFieldAccessRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ByNameToByHandleFieldAccessRule.java
@@ -75,7 +75,7 @@
             AssignOperator assignVar = new AssignOperator(varArray, exprArray);
             x = new VariableReferenceExpression(var1);
             assignVar.getInputs().add(opUnder);
-            opUnder = new  MutableObject<ILogicalOperator>(assignVar);
+            opUnder = new MutableObject<ILogicalOperator>(assignVar);
         }
 
         // let $t := type-of(x)
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CancelUnnestWithNestedListifyRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CancelUnnestWithNestedListifyRule.java
index 5dd5d27..6e5cb02 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CancelUnnestWithNestedListifyRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CancelUnnestWithNestedListifyRule.java
@@ -271,7 +271,7 @@
             raggOp.setPhysicalOperator(raggPOp);
             raggOp.getInputs().add(nestedPlanRoot.getInputs().get(0));
             gby.getNestedPlans().get(0).getRoots().set(0, new MutableObject<ILogicalOperator>(raggOp));
-            
+
             opRef.setValue(nestedAssign);
 
             context.computeAndSetTypeEnvironmentForOperator(nestedAssign);
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java
index 60eb974..4148aca 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/CountVarToCountOneRule.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.optimizer.rules;
 
-
 import org.apache.commons.lang3.mutable.Mutable;
 
 import edu.uci.ics.asterix.om.base.AInt64;
@@ -43,7 +42,8 @@
 
     // It is only for a group-by having just one aggregate which is a count.
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
         if (op1.getOperatorTag() != LogicalOperatorTag.GROUP) {
             return false;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java
index f2a8a27..cef3d4c 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractDistinctByExpressionsRule.java
@@ -43,7 +43,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
         if (op1.getOperatorTag() != LogicalOperatorTag.DISTINCT) {
             return false;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java
index 962d48c..dfac43c 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/ExtractOrderExpressionsRule.java
@@ -14,8 +14,6 @@
  */
 package edu.uci.ics.asterix.optimizer.rules;
 
-
-
 import org.apache.commons.lang3.mutable.Mutable;
 
 import edu.uci.ics.asterix.optimizer.base.AnalysisUtil;
@@ -33,7 +31,7 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.OrderOperator.IOrder;
 import edu.uci.ics.hyracks.algebricks.rewriter.rules.AbstractExtractExprRule;
 
-public class ExtractOrderExpressionsRule extends  AbstractExtractExprRule  {
+public class ExtractOrderExpressionsRule extends AbstractExtractExprRule {
 
     @Override
     public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) {
@@ -41,7 +39,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
 
         AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
         if (op1.getOperatorTag() != LogicalOperatorTag.ORDER) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FeedScanCollectionToUnnest.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FeedScanCollectionToUnnest.java
index 3940ed3..cbbe8a9 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FeedScanCollectionToUnnest.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/FeedScanCollectionToUnnest.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.optimizer.rules;
 
-
 import org.apache.commons.lang3.mutable.Mutable;
 import org.apache.commons.lang3.mutable.MutableObject;
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceMaterializationForInsertWithSelfScanRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceMaterializationForInsertWithSelfScanRule.java
index dd65d94..98488f1 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceMaterializationForInsertWithSelfScanRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceMaterializationForInsertWithSelfScanRule.java
@@ -106,7 +106,7 @@
                 DataSourceScanOperator dataSourceScanOp = (DataSourceScanOperator) descendantOp;
                 AqlDataSource ds = (AqlDataSource) dataSourceScanOp.getDataSource();
                 if (ds.getDatasourceType() != AqlDataSourceType.FEED) {
-                    if ( ((DatasetDataSource)ds).getDataset().getDatasetName().compareTo(insertDatasetName) == 0) {
+                    if (((DatasetDataSource) ds).getDataset().getDatasetName().compareTo(insertDatasetName) == 0) {
                         return true;
                     }
                 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java
index dc8d741..f2ca7d3 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceSecondaryIndexInsertDeleteRule.java
@@ -172,7 +172,8 @@
             project.getInputs().add(new MutableObject<ILogicalOperator>(currentTop));
             context.computeAndSetTypeEnvironmentForOperator(project);
             context.computeAndSetTypeEnvironmentForOperator(assign);
-            if (index.getIndexType() == IndexType.BTREE || index.getIndexType() == IndexType.SINGLE_PARTITION_WORD_INVIX
+            if (index.getIndexType() == IndexType.BTREE
+                    || index.getIndexType() == IndexType.SINGLE_PARTITION_WORD_INVIX
                     || index.getIndexType() == IndexType.SINGLE_PARTITION_NGRAM_INVIX
                     || index.getIndexType() == IndexType.LENGTH_PARTITIONED_WORD_INVIX
                     || index.getIndexType() == IndexType.LENGTH_PARTITIONED_NGRAM_INVIX) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java
index df6ed18..41eb883 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/IntroduceTransactionCommitByAssignOpRule.java
@@ -62,7 +62,7 @@
 
         //set the input of the new assign-operator to the input of the select-operator.
         assignOperator.getInputs().add(childOfSelect);
-        
+
         //set the result value of the assign-operator to the condition of the select-operator
         selectOperator.getCondition().setValue(new VariableReferenceExpression(v));//scalarFunctionCallExpression);
         selectOperator.getInputs().set(0, new MutableObject<ILogicalOperator>(assignOperator));
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java
index e44112e..ac6a690 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/LoadRecordFieldsRule.java
@@ -218,7 +218,6 @@
     }
 
     /**
-     * 
      * Pushes one field-access assignment above toPushThroughChildRef
      * 
      * @param toPush
@@ -234,17 +233,11 @@
     }
 
     /**
-     * 
      * Rewrite
-     * 
      * assign $x := field-access($y, "field")
-     * 
      * assign $y := record-constructor { "field": Expr, ... }
-     * 
      * into
-     * 
      * assign $x := Expr
-     * 
      * assign $y := record-constructor { "field": Expr, ... }
      * 
      * @param toPush
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java
index 4203891..ac2e682 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/NestGroupByRule.java
@@ -48,7 +48,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
         if (op1.getOperatorTag() != LogicalOperatorTag.SUBPLAN) {
             return false;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java
index 004e221..d4abefe 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PullPositionalVariableFromUnnestRule.java
@@ -43,7 +43,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
         if (op.getOperatorTag() != LogicalOperatorTag.UNNEST) {
             return false;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java
index 4e3f460..af59445 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushGroupByThroughProduct.java
@@ -41,12 +41,12 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
 import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
 
-
-
 public class PushGroupByThroughProduct implements IAlgebraicRewriteRule {
 
     private enum PushTestResult {
-        FALSE, TRUE, REPEATED_DECORS
+        FALSE,
+        TRUE,
+        REPEATED_DECORS
     }
 
     @Override
@@ -55,7 +55,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op1 = (AbstractLogicalOperator) opRef.getValue();
         if (op1.getOperatorTag() != LogicalOperatorTag.GROUP) {
             return false;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java
index de44eba..2892d89 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushProperJoinThroughProduct.java
@@ -43,7 +43,8 @@
     }
 
     @Override
-    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePost(Mutable<ILogicalOperator> opRef, IOptimizationContext context)
+            throws AlgebricksException {
         AbstractLogicalOperator op = (AbstractLogicalOperator) opRef.getValue();
         LogicalOperatorTag tag1 = op.getOperatorTag();
         if (tag1 != LogicalOperatorTag.INNERJOIN && tag1 != LogicalOperatorTag.LEFTOUTERJOIN) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java
index b339103..18ea39e 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/PushSimilarityFunctionsBelowJoin.java
@@ -30,25 +30,22 @@
  * a join (which may blow up the cardinality).
  * Also, this rule may help to enable other rules such as common subexpression elimination, again to reduce
  * the number of calls to expensive similarity functions.
- * 
  * Example:
- * 
  * Before plan:
  * assign [$$10] <- [funcA(funcB(simFuncX($$3, $$4)))]
- *   join (some condition) 
- *     join_branch_0 where $$3 and $$4 are not live
- *       ...
- *     join_branch_1 where $$3 and $$4 are live
- *       ...
- * 
+ * join (some condition)
+ * join_branch_0 where $$3 and $$4 are not live
+ * ...
+ * join_branch_1 where $$3 and $$4 are live
+ * ...
  * After plan:
  * assign [$$10] <- [funcA(funcB($$11))]
- *   join (some condition) 
- *     join_branch_0 where $$3 and $$4 are not live
- *       ...
- *     join_branch_1 where $$3 and $$4 are live
- *       assign[$$11] <- [simFuncX($$3, $$4)]
- *         ...
+ * join (some condition)
+ * join_branch_0 where $$3 and $$4 are not live
+ * ...
+ * join_branch_1 where $$3 and $$4 are live
+ * assign[$$11] <- [simFuncX($$3, $$4)]
+ * ...
  */
 public class PushSimilarityFunctionsBelowJoin extends PushFunctionsBelowJoin {
 
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java
index 51511aa..f42c983 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/RemoveRedundantListifyRule.java
@@ -68,7 +68,7 @@
     }
 
     @Override
-    public boolean rewritePre( Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
+    public boolean rewritePre(Mutable<ILogicalOperator> opRef, IOptimizationContext context) throws AlgebricksException {
         // apply it only at the top of the plan
         ILogicalOperator op = opRef.getValue();
         if (context.checkIfInDontApplySet(this, op)) {
@@ -86,7 +86,7 @@
         if (op.hasNestedPlans()) {
             AbstractOperatorWithNestedPlans aonp = (AbstractOperatorWithNestedPlans) op;
             for (ILogicalPlan p : aonp.getNestedPlans()) {
-                for ( Mutable<ILogicalOperator> r : p.getRoots()) {
+                for (Mutable<ILogicalOperator> r : p.getRoots()) {
                     if (applyRuleDown(r, varSet, context)) {
                         changed = true;
                     }
@@ -94,7 +94,7 @@
                 }
             }
         }
-        for ( Mutable<ILogicalOperator> i : op.getInputs()) {
+        for (Mutable<ILogicalOperator> i : op.getInputs()) {
             if (applyRuleDown(i, varSet, context)) {
                 changed = true;
             }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java
index 32b2f59..5c42555 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/SimilarityCheckRule.java
@@ -244,52 +244,56 @@
             AsterixConstantValue constVal, AbstractFunctionCallExpression funcExpr) {
         // Remember args from original similarity function to add them to the similarity-check function later.
         ArrayList<Mutable<ILogicalExpression>> similarityArgs = null;
-        ScalarFunctionCallExpression simCheckFuncExpr = null; 
+        ScalarFunctionCallExpression simCheckFuncExpr = null;
         // Look for jaccard function call, and GE or GT.
         if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.SIMILARITY_JACCARD) {
             IAObject jaccThresh;
-            if (normFuncIdent == AlgebricksBuiltinFunctions.GE) {                
+            if (normFuncIdent == AlgebricksBuiltinFunctions.GE) {
                 if (constVal.getObject() instanceof AFloat) {
-                    jaccThresh = constVal.getObject();                    
+                    jaccThresh = constVal.getObject();
                 } else {
-                    jaccThresh = new AFloat((float)((ADouble) constVal.getObject()).getDoubleValue());
+                    jaccThresh = new AFloat((float) ((ADouble) constVal.getObject()).getDoubleValue());
                 }
             } else if (normFuncIdent == AlgebricksBuiltinFunctions.GT) {
-                float threshVal = 0.0f;            
+                float threshVal = 0.0f;
                 if (constVal.getObject() instanceof AFloat) {
                     threshVal = ((AFloat) constVal.getObject()).getFloatValue();
                 } else {
-                    threshVal = (float)((ADouble) constVal.getObject()).getDoubleValue();                    
+                    threshVal = (float) ((ADouble) constVal.getObject()).getDoubleValue();
                 }
                 float f = threshVal + Float.MIN_VALUE;
-                if (f > 1.0f) f = 1.0f;
+                if (f > 1.0f)
+                    f = 1.0f;
                 jaccThresh = new AFloat(f);
             } else {
                 return null;
             }
             similarityArgs = new ArrayList<Mutable<ILogicalExpression>>();
             similarityArgs.addAll(funcExpr.getArguments());
-            similarityArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(jaccThresh))));
+            similarityArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                    jaccThresh))));
             simCheckFuncExpr = new ScalarFunctionCallExpression(
                     FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.SIMILARITY_JACCARD_CHECK), similarityArgs);
         }
 
         // Look for edit-distance function call, and LE or LT.
-        if(funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE) {
+        if (funcExpr.getFunctionIdentifier() == AsterixBuiltinFunctions.EDIT_DISTANCE) {
             AInt32 aInt = (AInt32) constVal.getObject();
             AInt32 edThresh;
             if (normFuncIdent == AlgebricksBuiltinFunctions.LE) {
                 edThresh = aInt;
             } else if (normFuncIdent == AlgebricksBuiltinFunctions.LT) {
                 int ed = aInt.getIntegerValue() - 1;
-                if (ed < 0) ed = 0;
+                if (ed < 0)
+                    ed = 0;
                 edThresh = new AInt32(ed);
             } else {
                 return null;
             }
             similarityArgs = new ArrayList<Mutable<ILogicalExpression>>();
             similarityArgs.addAll(funcExpr.getArguments());
-            similarityArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(edThresh))));
+            similarityArgs.add(new MutableObject<ILogicalExpression>(new ConstantExpression(new AsterixConstantValue(
+                    edThresh))));
             simCheckFuncExpr = new ScalarFunctionCallExpression(
                     FunctionUtils.getFunctionInfo(AsterixBuiltinFunctions.EDIT_DISTANCE_CHECK), similarityArgs);
         }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java
index d4c00e4..6b68b7f 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AbstractIntroduceAccessMethodRule.java
@@ -132,7 +132,7 @@
         Iterator<Map.Entry<Index, List<Integer>>> it = analysisCtx.indexExprs.entrySet().iterator();
         while (it.hasNext()) {
             Map.Entry<Index, List<Integer>> entry = it.next();
-            Index index = entry.getKey();            
+            Index index = entry.getKey();
             boolean allUsed = true;
             int lastFieldMatched = -1;
             for (int i = 0; i < index.getKeyFieldNames().size(); i++) {
@@ -266,8 +266,8 @@
         return true;
     }
 
-    protected void fillAllIndexExprs(OptimizableOperatorSubTree subTree,
-            AccessMethodAnalysisContext analysisCtx) throws AlgebricksException {
+    protected void fillAllIndexExprs(OptimizableOperatorSubTree subTree, AccessMethodAnalysisContext analysisCtx)
+            throws AlgebricksException {
         for (int optFuncExprIndex = 0; optFuncExprIndex < analysisCtx.matchedFuncExprs.size(); optFuncExprIndex++) {
             IOptimizableFuncExpr optFuncExpr = analysisCtx.matchedFuncExprs.get(optFuncExprIndex);
             // Try to match variables from optFuncExpr to assigns.
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java
index ab0fd79..fc0c562 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/AccessMethodUtils.java
@@ -149,7 +149,7 @@
         switch (index.getIndexType()) {
             case BTREE:
             case SINGLE_PARTITION_WORD_INVIX:
-            case SINGLE_PARTITION_NGRAM_INVIX: 
+            case SINGLE_PARTITION_NGRAM_INVIX:
             case LENGTH_PARTITIONED_WORD_INVIX:
             case LENGTH_PARTITIONED_NGRAM_INVIX: {
                 return index.getKeyFieldNames().size();
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java
index 507a085..5ec9702 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IOptimizableFuncExpr.java
@@ -25,16 +25,26 @@
  */
 public interface IOptimizableFuncExpr {
     public AbstractFunctionCallExpression getFuncExpr();
+
     public int getNumLogicalVars();
+
     public int getNumConstantVals();
+
     public LogicalVariable getLogicalVar(int index);
+
     public void setFieldName(int index, String fieldName);
+
     public String getFieldName(int index);
+
     public void setOptimizableSubTree(int index, OptimizableOperatorSubTree subTree);
+
     public OptimizableOperatorSubTree getOperatorSubTree(int index);
+
     public IAlgebricksConstantValue getConstantVal(int index);
-    
+
     public int findLogicalVar(LogicalVariable var);
+
     public int findFieldName(String fieldName);
+
     public void substituteVar(LogicalVariable original, LogicalVariable substitution);
 }
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java
index b1e0a46..8790c7c 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceJoinAccessMethodRule.java
@@ -37,27 +37,22 @@
 
 /**
  * This rule optimizes a join with secondary indexes into an indexed nested-loop join.
- * 
  * Matches the following operator pattern:
  * (join) <-- (select)? <-- (assign)+ <-- (datasource scan)
- *        <-- (select)? <-- (assign)+ <-- (datasource scan)
- * 
- * Replaces the above pattern with the following simplified plan: 
+ * <-- (select)? <-- (assign)+ <-- (datasource scan)
+ * Replaces the above pattern with the following simplified plan:
  * (select) <-- (assign) <-- (btree search) <-- (sort) <-- (unnest(index search)) <-- (assign) <-- (datasource scan)
  * The sort is optional, and some access methods may choose not to sort.
- * 
  * Note that for some index-based optimizations we do not remove the triggering
  * condition from the join, since the secondary index may only act as a filter, and the
  * final verification must still be done with the original join condition.
- * 
- * The basic outline of this rule is: 
- * 1. Match operator pattern. 
- * 2. Analyze join condition to see if there are optimizable functions (delegated to IAccessMethods). 
- * 3. Check metadata to see if there are applicable indexes. 
+ * The basic outline of this rule is:
+ * 1. Match operator pattern.
+ * 2. Analyze join condition to see if there are optimizable functions (delegated to IAccessMethods).
+ * 3. Check metadata to see if there are applicable indexes.
  * 4. Choose an index to apply (for now only a single index will be chosen).
  * 5. Rewrite plan using index (delegated to IAccessMethods).
- * 
- * TODO (Alex): Currently this rule requires a data scan on both inputs of the join. I should generalize the pattern 
+ * TODO (Alex): Currently this rule requires a data scan on both inputs of the join. I should generalize the pattern
  * to accept any subtree on one side, as long as the other side has a datasource scan.
  */
 public class IntroduceJoinAccessMethodRule extends AbstractIntroduceAccessMethodRule {
@@ -73,7 +68,7 @@
     static {
         registerAccessMethod(BTreeAccessMethod.INSTANCE, accessMethods);
         registerAccessMethod(RTreeAccessMethod.INSTANCE, accessMethods);
-        registerAccessMethod(InvertedIndexAccessMethod.INSTANCE, accessMethods);        
+        registerAccessMethod(InvertedIndexAccessMethod.INSTANCE, accessMethods);
     }
 
     @Override
@@ -133,7 +128,7 @@
         boolean res = chosenIndex.first.applyJoinPlanTransformation(joinRef, leftSubTree, rightSubTree,
                 chosenIndex.second, analysisCtx, context);
         if (res) {
-            OperatorPropertiesUtil.typeOpRec(opRef, context);            
+            OperatorPropertiesUtil.typeOpRec(opRef, context);
         }
         context.addToDontApplySet(this, join);
         return res;
@@ -170,7 +165,7 @@
     public Map<FunctionIdentifier, List<IAccessMethod>> getAccessMethods() {
         return accessMethods;
     }
-    
+
     private void clear() {
         joinRef = null;
         join = null;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java
index d71c5ef..f712c23 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/IntroduceSelectAccessMethodRule.java
@@ -39,7 +39,6 @@
  * This rule optimizes simple selections with secondary or primary indexes. The use of an
  * index is expressed as an unnest-map over an index-search function which will be
  * replaced with the appropriate embodiment during codegen.
- * 
  * Matches the following operator patterns:
  * Standard secondary index pattern:
  * There must be at least one assign, but there may be more, e.g., when matching similarity-jaccard-check().
@@ -47,22 +46,18 @@
  * Primary index lookup pattern:
  * Since no assign is necessary to get the primary key fields (they are already stored fields in the BTree tuples).
  * (select) <-- (datasource scan)
- * 
  * Replaces the above patterns with this plan:
  * (select) <-- (assign) <-- (btree search) <-- (sort) <-- (unnest-map(index search)) <-- (assign)
  * The sort is optional, and some access methods implementations may choose not to sort.
- * 
  * Note that for some index-based optimizations we do not remove the triggering
  * condition from the select, since the index may only acts as a filter, and the
  * final verification must still be done with the original select condition.
- * 
- * The basic outline of this rule is: 
- * 1. Match operator pattern. 
- * 2. Analyze select condition to see if there are optimizable functions (delegated to IAccessMethods). 
- * 3. Check metadata to see if there are applicable indexes. 
+ * The basic outline of this rule is:
+ * 1. Match operator pattern.
+ * 2. Analyze select condition to see if there are optimizable functions (delegated to IAccessMethods).
+ * 3. Check metadata to see if there are applicable indexes.
  * 4. Choose an index to apply (for now only a single index will be chosen).
  * 5. Rewrite plan using index (delegated to IAccessMethods).
- * 
  */
 public class IntroduceSelectAccessMethodRule extends AbstractIntroduceAccessMethodRule {
 
@@ -149,7 +144,7 @@
     public Map<FunctionIdentifier, List<IAccessMethod>> getAccessMethods() {
         return accessMethods;
     }
-    
+
     private void clear() {
         selectRef = null;
         select = null;
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java
index 3ebde07..f1b93fe 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/optimizer/rules/am/OptimizableFuncExpr.java
@@ -23,63 +23,65 @@
  * number of constant args, variable args and field names.
  */
 public class OptimizableFuncExpr implements IOptimizableFuncExpr {
-	protected final AbstractFunctionCallExpression funcExpr;
+    protected final AbstractFunctionCallExpression funcExpr;
     protected final LogicalVariable[] logicalVars;
     protected final String[] fieldNames;
     protected final OptimizableOperatorSubTree[] subTrees;
     protected final IAlgebricksConstantValue[] constantVals;
-    
-    public OptimizableFuncExpr(AbstractFunctionCallExpression funcExpr, LogicalVariable[] logicalVars, IAlgebricksConstantValue[] constantVals) {
-    	this.funcExpr = funcExpr;
-    	this.logicalVars = logicalVars;
-    	this.constantVals = constantVals;
-    	this.fieldNames = new String[logicalVars.length];
-    	this.subTrees = new OptimizableOperatorSubTree[logicalVars.length];
+
+    public OptimizableFuncExpr(AbstractFunctionCallExpression funcExpr, LogicalVariable[] logicalVars,
+            IAlgebricksConstantValue[] constantVals) {
+        this.funcExpr = funcExpr;
+        this.logicalVars = logicalVars;
+        this.constantVals = constantVals;
+        this.fieldNames = new String[logicalVars.length];
+        this.subTrees = new OptimizableOperatorSubTree[logicalVars.length];
     }
-    
+
     // Special, more convenient c'tor for simple binary functions.
-    public OptimizableFuncExpr(AbstractFunctionCallExpression funcExpr, LogicalVariable logicalVar, IAlgebricksConstantValue constantVal) {
-    	this.funcExpr = funcExpr;
-    	this.logicalVars = new LogicalVariable[] { logicalVar };
-    	this.constantVals = new IAlgebricksConstantValue[] { constantVal };
-    	this.fieldNames = new String[logicalVars.length];
-    	this.subTrees = new OptimizableOperatorSubTree[logicalVars.length];
+    public OptimizableFuncExpr(AbstractFunctionCallExpression funcExpr, LogicalVariable logicalVar,
+            IAlgebricksConstantValue constantVal) {
+        this.funcExpr = funcExpr;
+        this.logicalVars = new LogicalVariable[] { logicalVar };
+        this.constantVals = new IAlgebricksConstantValue[] { constantVal };
+        this.fieldNames = new String[logicalVars.length];
+        this.subTrees = new OptimizableOperatorSubTree[logicalVars.length];
     }
-    
-	@Override
-	public AbstractFunctionCallExpression getFuncExpr() {
-		return funcExpr;
-	}
-	
-	@Override
-	public int getNumLogicalVars() {
-		return logicalVars.length;
-	}
-	
-	@Override
-	public int getNumConstantVals() {
-		return constantVals.length;
-	}
-	
-	@Override	
-	public LogicalVariable getLogicalVar(int index) {
-		return logicalVars[index];
-	}
-	
-	@Override
-	public void setFieldName(int index, String fieldName) {
-		fieldNames[index] = fieldName;
-	}
-	
-	@Override
-	public String getFieldName(int index) {
-		return fieldNames[index];
-	}
-	
-	@Override
-	public IAlgebricksConstantValue getConstantVal(int index) {
-		return constantVals[index];
-	}
+
+    @Override
+    public AbstractFunctionCallExpression getFuncExpr() {
+        return funcExpr;
+    }
+
+    @Override
+    public int getNumLogicalVars() {
+        return logicalVars.length;
+    }
+
+    @Override
+    public int getNumConstantVals() {
+        return constantVals.length;
+    }
+
+    @Override
+    public LogicalVariable getLogicalVar(int index) {
+        return logicalVars[index];
+    }
+
+    @Override
+    public void setFieldName(int index, String fieldName) {
+        fieldNames[index] = fieldName;
+    }
+
+    @Override
+    public String getFieldName(int index) {
+        return fieldNames[index];
+    }
+
+    @Override
+    public IAlgebricksConstantValue getConstantVal(int index) {
+        return constantVals[index];
+    }
 
     @Override
     public int findLogicalVar(LogicalVariable var) {
diff --git a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java
index 88276d0..998bc2d 100644
--- a/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java
+++ b/asterix-algebra/src/main/java/edu/uci/ics/asterix/translator/ConstantHelper.java
@@ -50,7 +50,7 @@
             }
             case LONG: {
                 LongIntegerLiteral il = (LongIntegerLiteral) valLiteral;
-                return new AInt64(il.getValue());                
+                return new AInt64(il.getValue());
             }
             case NULL: {
                 return ANull.NULL;
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
index 60b0cd6..232a125 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/common/APIFramework.java
@@ -220,8 +220,7 @@
 
         }
 
-        edu.uci.ics.asterix.common.transactions.JobId asterixJobId = JobIdFactory
-                .generateJobId();
+        edu.uci.ics.asterix.common.transactions.JobId asterixJobId = JobIdFactory.generateJobId();
         queryMetadataProvider.setJobId(asterixJobId);
         AqlExpressionToPlanTranslator t = new AqlExpressionToPlanTranslator(queryMetadataProvider, varCounter,
                 outputDatasetName, statement);
@@ -265,7 +264,6 @@
         OptimizationConfUtil.getPhysicalOptimizationConfig().setFrameSize(frameSize);
         OptimizationConfUtil.getPhysicalOptimizationConfig().setMaxFramesExternalSort(sortFrameLimit);
         OptimizationConfUtil.getPhysicalOptimizationConfig().setMaxFramesHybridHash(joinFrameLimit);
-        
 
         HeuristicCompilerFactoryBuilder builder = new HeuristicCompilerFactoryBuilder(
                 AqlOptimizationContextFactory.INSTANCE);
@@ -280,7 +278,6 @@
         builder.setExpressionTypeComputer(AqlExpressionTypeComputer.INSTANCE);
         builder.setNullableTypeComputer(AqlNullableTypeComputer.INSTANCE);
 
-
         ICompiler compiler = compilerFactory.createCompiler(plan, queryMetadataProvider, t.getVarCounter());
         if (pc.isOptimize()) {
             compiler.optimize();
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/FeedDataProviderServlet.java b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/FeedDataProviderServlet.java
index 437a2c9..463ce01 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/FeedDataProviderServlet.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/api/http/servlet/FeedDataProviderServlet.java
@@ -88,7 +88,7 @@
                     .getActiveFeeds(ctx, dataverseName, datasetName);
             FeedConnectionId feedId = new FeedConnectionId(dataverseName, feedName, datasetName);
             FeedActivity activity = MetadataManager.INSTANCE.getRecentActivityOnFeedConnection(ctx, feedId, null);
-            switch(activity.getActivityType()){
+            switch (activity.getActivityType()) {
                 case FEED_BEGIN:
                     Map<String, String> activityDetails = activity.getFeedActivityDetails();
                     String ingestLocations = activityDetails.get(FeedActivityDetails.INGEST_LOCATIONS);
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
index a0acd44..052e526 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/aql/translator/AqlTranslator.java
@@ -990,7 +990,7 @@
                         }
                     }
                 }
-                
+
                 //#. prepare jobs to drop the datatset and the indexes in NC
                 List<Index> indexes = MetadataManager.INSTANCE.getDatasetIndexes(mdTxnCtx, dataverseName, datasetName);
                 for (int j = 0; j < indexes.size(); j++) {
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
index 0dab8dd..950afe4 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterLifecycleListener.java
@@ -106,7 +106,6 @@
         }
     }
 
-
     private void updateProgress(ClusterEventType eventType, Set<String> nodeIds) {
         List<IClusterManagementWorkResponse> completedResponses = new ArrayList<IClusterManagementWorkResponse>();
         boolean isComplete = false;
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java
index 172a0ec..77581c7 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/hyracks/bootstrap/ClusterWorkExecutor.java
@@ -37,8 +37,7 @@
     public ClusterWorkExecutor(LinkedBlockingQueue<Set<IClusterManagementWork>> inbox) {
         this.inbox = inbox;
     }
-    
-   
+
     @Override
     public void run() {
         while (true) {
@@ -85,7 +84,6 @@
                         }
                     }
                 }
-                
 
             } catch (InterruptedException e) {
                 if (LOGGER.isLoggable(Level.SEVERE)) {
diff --git a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
index 1900fa3..ad60843 100644
--- a/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
+++ b/asterix-app/src/main/java/edu/uci/ics/asterix/result/ResultUtils.java
@@ -206,7 +206,7 @@
     /**
      * Read the template file which is stored as a resource and return its content. If the file does not exist or is
      * not readable return the default template string.
-     *
+     * 
      * @param path
      *            The path to the resource template file
      * @param defaultTemplate
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java
index 95eefa0..6b41e25 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/AbstractExpression.java
@@ -20,20 +20,20 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IExpressionAnnotation;
 
 public abstract class AbstractExpression implements Expression {
-	protected List<IExpressionAnnotation> hints;
-	
-	public void addHint(IExpressionAnnotation hint) {
-    	if (hints == null) {
-    		hints = new ArrayList<IExpressionAnnotation>();
-    	}
-    	hints.add(hint);
+    protected List<IExpressionAnnotation> hints;
+
+    public void addHint(IExpressionAnnotation hint) {
+        if (hints == null) {
+            hints = new ArrayList<IExpressionAnnotation>();
+        }
+        hints.add(hint);
     }
-    
+
     public boolean hasHints() {
-    	return hints != null;
+        return hints != null;
     }
-    
+
     public List<IExpressionAnnotation> getHints() {
-    	return hints;
+        return hints;
     }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java
index ad00112..566481e 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/base/Literal.java
@@ -34,28 +34,28 @@
     }
 
     abstract public Object getValue();
-    
+
     abstract public Type getLiteralType();
 
     public String getStringValue() {
         return getValue().toString();
-    }    
-    
+    }
+
     @Override
     public int hashCode() {
         return getValue().hashCode();
-    }    
+    }
 
     public boolean equals(Object obj) {
         if (!(obj instanceof Literal)) {
             return false;
         }
-        Literal literal = (Literal)obj;
+        Literal literal = (Literal) obj;
         return getValue().equals(literal.getValue());
-    } 
-    
+    }
+
     @Override
     public String toString() {
         return getStringValue();
-    }    
+    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java
index c9d4d59..b8538b8 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/Query.java
@@ -21,39 +21,37 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 public class Query implements Statement {
-	private Expression body;
-	private int varCounter;
+    private Expression body;
+    private int varCounter;
 
-	public Expression getBody() {
-		return body;
-	}
+    public Expression getBody() {
+        return body;
+    }
 
-	public void setBody(Expression body) {
-		this.body = body;
-	}
+    public void setBody(Expression body) {
+        this.body = body;
+    }
 
-	public int getVarCounter() {
-		return varCounter;
-	}
+    public int getVarCounter() {
+        return varCounter;
+    }
 
-	public void setVarCounter(int varCounter) {
-		this.varCounter = varCounter;
-	}
+    public void setVarCounter(int varCounter) {
+        this.varCounter = varCounter;
+    }
 
-	@Override
-	public Kind getKind() {
-		return Kind.QUERY;
-	}
+    @Override
+    public Kind getKind() {
+        return Kind.QUERY;
+    }
 
-	@Override
-	public <T> void accept(IAqlVisitorWithVoidReturn<T> visitor, T step)
-			throws AsterixException {
-		visitor.visit(this, step);
-	}
+    @Override
+    public <T> void accept(IAqlVisitorWithVoidReturn<T> visitor, T step) throws AsterixException {
+        visitor.visit(this, step);
+    }
 
-	@Override
-	public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg)
-			throws AsterixException {
-		return visitor.visitQuery(this, arg);
-	}
+    @Override
+    public <R, T> R accept(IAqlExpressionVisitor<R, T> visitor, T arg) throws AsterixException {
+        return visitor.visitQuery(this, arg);
+    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
index 22b63fa..255f40b 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/AQLPrintVisitor.java
@@ -84,517 +84,471 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 public class AQLPrintVisitor implements IAqlVisitorWithVoidReturn<Integer> {
-	// private int level =0;
-	private final PrintWriter out;
+    // private int level =0;
+    private final PrintWriter out;
 
-	public AQLPrintVisitor() {
-		out = new PrintWriter(System.out);
-	}
+    public AQLPrintVisitor() {
+        out = new PrintWriter(System.out);
+    }
 
-	public AQLPrintVisitor(PrintWriter out) {
-		this.out = out;
-	}
+    public AQLPrintVisitor(PrintWriter out) {
+        this.out = out;
+    }
 
-	private String skip(int step) {
-		StringBuffer sb = new StringBuffer();
-		for (int i = 0; i < step; i++)
-			sb.append("  ");
-		return sb.toString();
-	}
+    private String skip(int step) {
+        StringBuffer sb = new StringBuffer();
+        for (int i = 0; i < step; i++)
+            sb.append("  ");
+        return sb.toString();
+    }
 
-	@Override
-	public void visit(Query q, Integer step) throws AsterixException {
-		if (q.getBody() != null) {
-			out.println("Query:");
-			q.getBody().accept(this, step);
-		} else {
-			out.println("No query.");
-		}
-	}
+    @Override
+    public void visit(Query q, Integer step) throws AsterixException {
+        if (q.getBody() != null) {
+            out.println("Query:");
+            q.getBody().accept(this, step);
+        } else {
+            out.println("No query.");
+        }
+    }
 
-	@Override
-	public void visit(LiteralExpr l, Integer step) {
-		Literal lc = l.getValue();
-		if (lc.getLiteralType().equals(Literal.Type.TRUE)
-				|| lc.getLiteralType().equals(Literal.Type.FALSE)
-				|| lc.getLiteralType().equals(Literal.Type.NULL)) {
-			out.println(skip(step) + "LiteralExpr ["
-					+ l.getValue().getLiteralType() + "]");
-		} else {
-			out.println(skip(step) + "LiteralExpr ["
-					+ l.getValue().getLiteralType() + "] ["
-					+ l.getValue().getStringValue() + "] ");
-		}
-	}
+    @Override
+    public void visit(LiteralExpr l, Integer step) {
+        Literal lc = l.getValue();
+        if (lc.getLiteralType().equals(Literal.Type.TRUE) || lc.getLiteralType().equals(Literal.Type.FALSE)
+                || lc.getLiteralType().equals(Literal.Type.NULL)) {
+            out.println(skip(step) + "LiteralExpr [" + l.getValue().getLiteralType() + "]");
+        } else {
+            out.println(skip(step) + "LiteralExpr [" + l.getValue().getLiteralType() + "] ["
+                    + l.getValue().getStringValue() + "] ");
+        }
+    }
 
-	@Override
-	public void visit(VariableExpr v, Integer step) {
-		out.println(skip(step) + "Variable [ Name=" + v.getVar().getValue()
-				+ " Id=" + v.getVar().getId() + " ]");
-	}
+    @Override
+    public void visit(VariableExpr v, Integer step) {
+        out.println(skip(step) + "Variable [ Name=" + v.getVar().getValue() + " Id=" + v.getVar().getId() + " ]");
+    }
 
-	@Override
-	public void visit(ListConstructor lc, Integer step) throws AsterixException {
-		boolean ordered = false;
-		if (lc.getType().equals(ListConstructor.Type.ORDERED_LIST_CONSTRUCTOR)) {
-			ordered = true;
-		}
+    @Override
+    public void visit(ListConstructor lc, Integer step) throws AsterixException {
+        boolean ordered = false;
+        if (lc.getType().equals(ListConstructor.Type.ORDERED_LIST_CONSTRUCTOR)) {
+            ordered = true;
+        }
 
-		out.println(skip(step)
-				+ (ordered == true ? "OrderedListConstructor "
-						: "UnorderedListConstructor ") + "[");
-		for (Expression e : lc.getExprList()) {
-			e.accept(this, step + 1);
-		}
-		out.println(skip(step) + "]");
-	}
+        out.println(skip(step) + (ordered == true ? "OrderedListConstructor " : "UnorderedListConstructor ") + "[");
+        for (Expression e : lc.getExprList()) {
+            e.accept(this, step + 1);
+        }
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(RecordConstructor rc, Integer step)
-			throws AsterixException {
-		out.println(skip(step) + "RecordConstructor [");
-		// fbList accept visitor
-		for (FieldBinding fb : rc.getFbList()) {
-			out.println(skip(step + 1) + "(");
-			fb.getLeftExpr().accept(this, step + 2);
-			out.println(skip(step + 2) + ":");
-			fb.getRightExpr().accept(this, step + 2);
-			out.println(skip(step + 1) + ")");
-		}
-		out.println(skip(step) + "]");
-	}
+    @Override
+    public void visit(RecordConstructor rc, Integer step) throws AsterixException {
+        out.println(skip(step) + "RecordConstructor [");
+        // fbList accept visitor
+        for (FieldBinding fb : rc.getFbList()) {
+            out.println(skip(step + 1) + "(");
+            fb.getLeftExpr().accept(this, step + 2);
+            out.println(skip(step + 2) + ":");
+            fb.getRightExpr().accept(this, step + 2);
+            out.println(skip(step + 1) + ")");
+        }
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(CallExpr pf, Integer step) throws AsterixException {
-		out.println(skip(step) + "FunctionCall "
-				+ pf.getFunctionSignature().toString() + "[");
-		for (Expression expr : pf.getExprList()) {
-			expr.accept(this, step + 1);
-		}
-		out.println(skip(step) + "]");
-	}
+    @Override
+    public void visit(CallExpr pf, Integer step) throws AsterixException {
+        out.println(skip(step) + "FunctionCall " + pf.getFunctionSignature().toString() + "[");
+        for (Expression expr : pf.getExprList()) {
+            expr.accept(this, step + 1);
+        }
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(OperatorExpr ifbo, Integer step) throws AsterixException {
-		List<Expression> exprList = ifbo.getExprList();
-		List<OperatorType> opList = ifbo.getOpList();
-		if (ifbo.isCurrentop()) {
-			out.println(skip(step) + "OperatorExpr [");
-			exprList.get(0).accept(this, step + 1);
-			for (int i = 1; i < exprList.size(); i++) {
-				out.println(skip(step + 1) + opList.get(i - 1));
-				exprList.get(i).accept(this, step + 1);
-			}
-			out.println(skip(step) + "]");
-		} else {
-			exprList.get(0).accept(this, step);
-		}
+    @Override
+    public void visit(OperatorExpr ifbo, Integer step) throws AsterixException {
+        List<Expression> exprList = ifbo.getExprList();
+        List<OperatorType> opList = ifbo.getOpList();
+        if (ifbo.isCurrentop()) {
+            out.println(skip(step) + "OperatorExpr [");
+            exprList.get(0).accept(this, step + 1);
+            for (int i = 1; i < exprList.size(); i++) {
+                out.println(skip(step + 1) + opList.get(i - 1));
+                exprList.get(i).accept(this, step + 1);
+            }
+            out.println(skip(step) + "]");
+        } else {
+            exprList.get(0).accept(this, step);
+        }
 
-	}
+    }
 
-	@Override
-	public void visit(IfExpr ifexpr, Integer step) throws AsterixException {
-		out.println(skip(step) + "IfExpr [");
-		out.println(skip(step + 1) + "Condition:");
-		ifexpr.getCondExpr().accept(this, step + 2);
-		out.println(skip(step + 1) + "Then:");
-		ifexpr.getThenExpr().accept(this, step + 2);
-		out.println(skip(step + 1) + "Else:");
-		ifexpr.getElseExpr().accept(this, step + 2);
-		out.println(skip(step) + "]");
-	}
+    @Override
+    public void visit(IfExpr ifexpr, Integer step) throws AsterixException {
+        out.println(skip(step) + "IfExpr [");
+        out.println(skip(step + 1) + "Condition:");
+        ifexpr.getCondExpr().accept(this, step + 2);
+        out.println(skip(step + 1) + "Then:");
+        ifexpr.getThenExpr().accept(this, step + 2);
+        out.println(skip(step + 1) + "Else:");
+        ifexpr.getElseExpr().accept(this, step + 2);
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(FLWOGRExpression flwor, Integer step)
-			throws AsterixException {
-		out.println(skip(step) + "FLWOGR [");
-		for (Clause cl : flwor.getClauseList()) {
-			cl.accept(this, step + 1);
-		}
-		out.println(skip(step + 1) + "Return");
-		flwor.getReturnExpr().accept(this, step + 2);
-		out.println(skip(step) + "]");
-	}
+    @Override
+    public void visit(FLWOGRExpression flwor, Integer step) throws AsterixException {
+        out.println(skip(step) + "FLWOGR [");
+        for (Clause cl : flwor.getClauseList()) {
+            cl.accept(this, step + 1);
+        }
+        out.println(skip(step + 1) + "Return");
+        flwor.getReturnExpr().accept(this, step + 2);
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(QuantifiedExpression qe, Integer step)
-			throws AsterixException {
-		out.println(skip(step) + "QuantifiedExpression " + qe.getQuantifier()
-				+ " [");
-		// quantifiedList accept visitor
-		for (QuantifiedPair pair : qe.getQuantifiedList()) {
-			out.print(skip(step + 1) + "[");
-			pair.getVarExpr().accept(this, 0);
-			out.println(skip(step + 1) + "In");
-			pair.getExpr().accept(this, step + 2);
-			out.println(skip(step + 1) + "]");
-		}
-		out.println(skip(step + 1) + "Satifies [");
-		qe.getSatisfiesExpr().accept(this, step + 2);
-		out.println(skip(step + 1) + "]");// for satifies
-		out.println(skip(step) + "]");// for quantifiedExpr
-	}
+    @Override
+    public void visit(QuantifiedExpression qe, Integer step) throws AsterixException {
+        out.println(skip(step) + "QuantifiedExpression " + qe.getQuantifier() + " [");
+        // quantifiedList accept visitor
+        for (QuantifiedPair pair : qe.getQuantifiedList()) {
+            out.print(skip(step + 1) + "[");
+            pair.getVarExpr().accept(this, 0);
+            out.println(skip(step + 1) + "In");
+            pair.getExpr().accept(this, step + 2);
+            out.println(skip(step + 1) + "]");
+        }
+        out.println(skip(step + 1) + "Satifies [");
+        qe.getSatisfiesExpr().accept(this, step + 2);
+        out.println(skip(step + 1) + "]");// for satifies
+        out.println(skip(step) + "]");// for quantifiedExpr
+    }
 
-	@Override
-	public void visit(ForClause fc, Integer step) throws AsterixException {
-		out.print(skip(step) + "For ");
-		fc.getVarExpr().accept(this, 0);
-		out.println(skip(step + 1) + "In ");
-		fc.getInExpr().accept(this, step + 1);
-	}
+    @Override
+    public void visit(ForClause fc, Integer step) throws AsterixException {
+        out.print(skip(step) + "For ");
+        fc.getVarExpr().accept(this, 0);
+        out.println(skip(step + 1) + "In ");
+        fc.getInExpr().accept(this, step + 1);
+    }
 
-	@Override
-	public void visit(LetClause lc, Integer step) throws AsterixException {
-		out.print(skip(step) + "Let ");
-		lc.getVarExpr().accept(this, 0);
-		out.println(skip(step + 1) + ":= ");
-		lc.getBindingExpr().accept(this, step + 1);
-	}
+    @Override
+    public void visit(LetClause lc, Integer step) throws AsterixException {
+        out.print(skip(step) + "Let ");
+        lc.getVarExpr().accept(this, 0);
+        out.println(skip(step + 1) + ":= ");
+        lc.getBindingExpr().accept(this, step + 1);
+    }
 
-	@Override
-	public void visit(WhereClause wc, Integer step) throws AsterixException {
-		out.println(skip(step) + "Where ");
-		wc.getWhereExpr().accept(this, step + 1);
-	}
+    @Override
+    public void visit(WhereClause wc, Integer step) throws AsterixException {
+        out.println(skip(step) + "Where ");
+        wc.getWhereExpr().accept(this, step + 1);
+    }
 
-	@Override
-	public void visit(OrderbyClause oc, Integer step) throws AsterixException {
-		out.println(skip(step) + "Orderby");
-		List<OrderModifier> mlist = oc.getModifierList();
-		List<Expression> list = oc.getOrderbyList();
-		for (int i = 0; i < list.size(); i++) {
-			list.get(i).accept(this, step + 1);
-			out.println(skip(step + 1) + mlist.get(i).toString());
-		}
-		out.println(skip(step));
-	}
+    @Override
+    public void visit(OrderbyClause oc, Integer step) throws AsterixException {
+        out.println(skip(step) + "Orderby");
+        List<OrderModifier> mlist = oc.getModifierList();
+        List<Expression> list = oc.getOrderbyList();
+        for (int i = 0; i < list.size(); i++) {
+            list.get(i).accept(this, step + 1);
+            out.println(skip(step + 1) + mlist.get(i).toString());
+        }
+        out.println(skip(step));
+    }
 
-	@Override
-	public void visit(GroupbyClause gc, Integer step) throws AsterixException {
-		out.println(skip(step) + "Groupby");
-		for (GbyVariableExpressionPair pair : gc.getGbyPairList()) {
+    @Override
+    public void visit(GroupbyClause gc, Integer step) throws AsterixException {
+        out.println(skip(step) + "Groupby");
+        for (GbyVariableExpressionPair pair : gc.getGbyPairList()) {
 
-			if (pair.getVar() != null) {
-				pair.getVar().accept(this, step + 1);
-				out.println(skip(step + 1) + ":=");
-			}
+            if (pair.getVar() != null) {
+                pair.getVar().accept(this, step + 1);
+                out.println(skip(step + 1) + ":=");
+            }
 
-			pair.getExpr().accept(this, step + 1);
-		}
-		if (!gc.getDecorPairList().isEmpty()) {
-			out.println(skip(step + 1) + "Decor");
-			for (GbyVariableExpressionPair pair : gc.getDecorPairList()) {
-				if (pair.getVar() != null) {
-					pair.getVar().accept(this, step + 1);
-					out.println(skip(step + 1) + ":=");
-				}
-				pair.getExpr().accept(this, step + 1);
-			}
-		}
-		out.println(skip(step + 1) + "With");
-		for (VariableExpr exp : gc.getWithVarList()) {
-			exp.accept(this, step + 1);
-		}
-		out.println(skip(step));
-	}
+            pair.getExpr().accept(this, step + 1);
+        }
+        if (!gc.getDecorPairList().isEmpty()) {
+            out.println(skip(step + 1) + "Decor");
+            for (GbyVariableExpressionPair pair : gc.getDecorPairList()) {
+                if (pair.getVar() != null) {
+                    pair.getVar().accept(this, step + 1);
+                    out.println(skip(step + 1) + ":=");
+                }
+                pair.getExpr().accept(this, step + 1);
+            }
+        }
+        out.println(skip(step + 1) + "With");
+        for (VariableExpr exp : gc.getWithVarList()) {
+            exp.accept(this, step + 1);
+        }
+        out.println(skip(step));
+    }
 
-	@Override
-	public void visit(LimitClause lc, Integer step) throws AsterixException {
-		out.println(skip(step) + "Limit");
-		lc.getLimitExpr().accept(this, step + 1);
-		if (lc.getOffset() != null) {
-			out.println(skip(step + 1) + "Offset");
-			lc.getOffset().accept(this, step + 2);
-		}
-	}
+    @Override
+    public void visit(LimitClause lc, Integer step) throws AsterixException {
+        out.println(skip(step) + "Limit");
+        lc.getLimitExpr().accept(this, step + 1);
+        if (lc.getOffset() != null) {
+            out.println(skip(step + 1) + "Offset");
+            lc.getOffset().accept(this, step + 2);
+        }
+    }
 
-	@Override
-	public void visit(FunctionDecl fd, Integer step) throws AsterixException {
-		out.println(skip(step) + "FunctionDecl " + fd.getSignature().getName()
-				+ "(" + fd.getParamList().toString() + ") {");
-		fd.getFuncBody().accept(this, step + 1);
-		out.println(skip(step) + "}");
-		out.println();
-	}
+    @Override
+    public void visit(FunctionDecl fd, Integer step) throws AsterixException {
+        out.println(skip(step) + "FunctionDecl " + fd.getSignature().getName() + "(" + fd.getParamList().toString()
+                + ") {");
+        fd.getFuncBody().accept(this, step + 1);
+        out.println(skip(step) + "}");
+        out.println();
+    }
 
-	@Override
-	public void visit(UnaryExpr u, Integer step) throws AsterixException {
-		if (u.getSign() != null) {
-			out.print(skip(step) + u.getSign() + " ");
-			u.getExpr().accept(this, 0);
-		} else
-			u.getExpr().accept(this, step);
-	}
+    @Override
+    public void visit(UnaryExpr u, Integer step) throws AsterixException {
+        if (u.getSign() != null) {
+            out.print(skip(step) + u.getSign() + " ");
+            u.getExpr().accept(this, 0);
+        } else
+            u.getExpr().accept(this, step);
+    }
 
-	@Override
-	public void visit(FieldAccessor fa, Integer step) throws AsterixException {
-		out.println(skip(step) + "FieldAccessor [");
-		fa.getExpr().accept(this, step + 1);
-		out.println(skip(step + 1) + "Field="
-				+ ((FieldAccessor) fa).getIdent().getValue());
-		out.println(skip(step) + "]");
+    @Override
+    public void visit(FieldAccessor fa, Integer step) throws AsterixException {
+        out.println(skip(step) + "FieldAccessor [");
+        fa.getExpr().accept(this, step + 1);
+        out.println(skip(step + 1) + "Field=" + ((FieldAccessor) fa).getIdent().getValue());
+        out.println(skip(step) + "]");
 
-	}
+    }
 
-	@Override
-	public void visit(IndexAccessor fa, Integer step) throws AsterixException {
-		out.println(skip(step) + "IndexAccessor [");
-		fa.getExpr().accept(this, step + 1);
-		out.print(skip(step + 1) + "Index: ");
-		out.println((((IndexAccessor) fa).isAny() ? "ANY"
-				: ((IndexAccessor) fa).getIndex()));
+    @Override
+    public void visit(IndexAccessor fa, Integer step) throws AsterixException {
+        out.println(skip(step) + "IndexAccessor [");
+        fa.getExpr().accept(this, step + 1);
+        out.print(skip(step + 1) + "Index: ");
+        out.println((((IndexAccessor) fa).isAny() ? "ANY" : ((IndexAccessor) fa).getIndex()));
 
-		out.println(skip(step) + "]");
+        out.println(skip(step) + "]");
 
-	}
+    }
 
-	@Override
-	public void visit(TypeDecl t, Integer step) throws AsterixException {
-		out.println(skip(step) + "TypeDecl " + t.getIdent() + " [");
-		t.getTypeDef().accept(this, step + 1);
-		out.println(skip(step) + "]");
-	}
+    @Override
+    public void visit(TypeDecl t, Integer step) throws AsterixException {
+        out.println(skip(step) + "TypeDecl " + t.getIdent() + " [");
+        t.getTypeDef().accept(this, step + 1);
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(TypeReferenceExpression t, Integer arg)
-			throws AsterixException {
-		out.print(t.getIdent());
-	}
+    @Override
+    public void visit(TypeReferenceExpression t, Integer arg) throws AsterixException {
+        out.print(t.getIdent());
+    }
 
-	@Override
-	public void visit(RecordTypeDefinition r, Integer step)
-			throws AsterixException {
-		if (r.getRecordKind() == RecordKind.CLOSED) {
-			out.print(skip(step) + "closed ");
-		} else {
-			out.print(skip(step) + "open ");
-		}
-		out.println("RecordType {");
-		Iterator<String> nameIter = r.getFieldNames().iterator();
-		Iterator<TypeExpression> typeIter = r.getFieldTypes().iterator();
-		Iterator<Boolean> isnullableIter = r.getNullableFields().iterator();
-		boolean first = true;
-		while (nameIter.hasNext()) {
-			if (first) {
-				first = false;
-			} else {
-				out.println(",");
-			}
-			String name = nameIter.next();
-			TypeExpression texp = typeIter.next();
-			Boolean isNullable = isnullableIter.next();
-			out.print(skip(step + 1) + name + " : ");
-			texp.accept(this, step + 2);
-			if (isNullable) {
-				out.print("?");
-			}
-		}
-		out.println();
-		out.println(skip(step) + "}");
-	}
+    @Override
+    public void visit(RecordTypeDefinition r, Integer step) throws AsterixException {
+        if (r.getRecordKind() == RecordKind.CLOSED) {
+            out.print(skip(step) + "closed ");
+        } else {
+            out.print(skip(step) + "open ");
+        }
+        out.println("RecordType {");
+        Iterator<String> nameIter = r.getFieldNames().iterator();
+        Iterator<TypeExpression> typeIter = r.getFieldTypes().iterator();
+        Iterator<Boolean> isnullableIter = r.getNullableFields().iterator();
+        boolean first = true;
+        while (nameIter.hasNext()) {
+            if (first) {
+                first = false;
+            } else {
+                out.println(",");
+            }
+            String name = nameIter.next();
+            TypeExpression texp = typeIter.next();
+            Boolean isNullable = isnullableIter.next();
+            out.print(skip(step + 1) + name + " : ");
+            texp.accept(this, step + 2);
+            if (isNullable) {
+                out.print("?");
+            }
+        }
+        out.println();
+        out.println(skip(step) + "}");
+    }
 
-	@Override
-	public void visit(OrderedListTypeDefinition x, Integer step)
-			throws AsterixException {
-		out.print("OrderedList [");
-		x.getItemTypeExpression().accept(this, step + 2);
-		out.println("]");
-	}
+    @Override
+    public void visit(OrderedListTypeDefinition x, Integer step) throws AsterixException {
+        out.print("OrderedList [");
+        x.getItemTypeExpression().accept(this, step + 2);
+        out.println("]");
+    }
 
-	@Override
-	public void visit(UnorderedListTypeDefinition x, Integer step)
-			throws AsterixException {
-		out.print("UnorderedList <");
-		x.getItemTypeExpression().accept(this, step + 2);
-		out.println(">");
-	}
+    @Override
+    public void visit(UnorderedListTypeDefinition x, Integer step) throws AsterixException {
+        out.print("UnorderedList <");
+        x.getItemTypeExpression().accept(this, step + 2);
+        out.println(">");
+    }
 
-	@Override
-	public void visit(DatasetDecl dd, Integer step) throws AsterixException {
-		if (dd.getDatasetType() == DatasetType.INTERNAL) {
-			out.println(skip(step)
-					+ "DatasetDecl"
-					+ dd.getName()
-					+ "("
-					+ dd.getItemTypeName()
-					+ ")"
-					+ " partitioned by "
-					+ ((InternalDetailsDecl) dd.getDatasetDetailsDecl())
-							.getPartitioningExprs());
-		} else if (dd.getDatasetType() == DatasetType.EXTERNAL) {
-			out.println(skip(step) + "DatasetDecl" + dd.getName() + "("
-					+ dd.getItemTypeName() + ")" + "is an external dataset");
-		}
-	}
+    @Override
+    public void visit(DatasetDecl dd, Integer step) throws AsterixException {
+        if (dd.getDatasetType() == DatasetType.INTERNAL) {
+            out.println(skip(step) + "DatasetDecl" + dd.getName() + "(" + dd.getItemTypeName() + ")"
+                    + " partitioned by " + ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getPartitioningExprs());
+        } else if (dd.getDatasetType() == DatasetType.EXTERNAL) {
+            out.println(skip(step) + "DatasetDecl" + dd.getName() + "(" + dd.getItemTypeName() + ")"
+                    + "is an external dataset");
+        }
+    }
 
-	@Override
-	public void visit(DataverseDecl dv, Integer step) throws AsterixException {
-		out.println(skip(step) + "DataverseUse " + dv.getDataverseName());
-	}
+    @Override
+    public void visit(DataverseDecl dv, Integer step) throws AsterixException {
+        out.println(skip(step) + "DataverseUse " + dv.getDataverseName());
+    }
 
-	@Override
-	public void visit(NodegroupDecl ngd, Integer step) throws AsterixException {
-		out.println(skip(step) + "Nodegroup " + ngd.getNodeControllerNames());
-	}
+    @Override
+    public void visit(NodegroupDecl ngd, Integer step) throws AsterixException {
+        out.println(skip(step) + "Nodegroup " + ngd.getNodeControllerNames());
+    }
 
-	@Override
-	public void visit(LoadFromFileStatement stmtLoad, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(LoadFromFileStatement stmtLoad, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(DropStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(DropStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(WriteStatement ws, Integer step) throws AsterixException {
-		out.print(skip(step) + "WriteOutputTo " + ws.getNcName() + ":"
-				+ ws.getFileName());
-		if (ws.getWriterClassName() != null) {
-			out.print(" using " + ws.getWriterClassName());
-		}
-		out.println();
-	}
+    @Override
+    public void visit(WriteStatement ws, Integer step) throws AsterixException {
+        out.print(skip(step) + "WriteOutputTo " + ws.getNcName() + ":" + ws.getFileName());
+        if (ws.getWriterClassName() != null) {
+            out.print(" using " + ws.getWriterClassName());
+        }
+        out.println();
+    }
 
-	@Override
-	public void visit(SetStatement ss, Integer step) throws AsterixException {
-		out.println(skip(step) + "Set " + ss.getPropName() + "="
-				+ ss.getPropValue());
-	}
+    @Override
+    public void visit(SetStatement ss, Integer step) throws AsterixException {
+        out.println(skip(step) + "Set " + ss.getPropName() + "=" + ss.getPropValue());
+    }
 
-	@Override
-	public void visit(CreateIndexStatement cis, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(CreateIndexStatement cis, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(DisconnectFeedStatement ss, Integer step)
-			throws AsterixException {
-		out.println(skip(step) + skip(step) + ss.getFeedName() + skip(step)
-				+ ss.getDatasetName());
-	}
+    @Override
+    public void visit(DisconnectFeedStatement ss, Integer step) throws AsterixException {
+        out.println(skip(step) + skip(step) + ss.getFeedName() + skip(step) + ss.getDatasetName());
+    }
 
-	@Override
-	public void visit(UnionExpr u, Integer step) throws AsterixException {
-		out.println(skip(step) + "Union [");
-		for (Expression expr : u.getExprs()) {
-			expr.accept(this, step + 1);
-		}
-		out.println(skip(step) + "]");
-	}
+    @Override
+    public void visit(UnionExpr u, Integer step) throws AsterixException {
+        out.println(skip(step) + "Union [");
+        for (Expression expr : u.getExprs()) {
+            expr.accept(this, step + 1);
+        }
+        out.println(skip(step) + "]");
+    }
 
-	@Override
-	public void visit(DistinctClause dc, Integer step) throws AsterixException {
-		out.print(skip(step) + "Distinct ");
-		for (Expression expr : dc.getDistinctByExpr())
-			expr.accept(this, step + 1);
-	}
+    @Override
+    public void visit(DistinctClause dc, Integer step) throws AsterixException {
+        out.print(skip(step) + "Distinct ");
+        for (Expression expr : dc.getDistinctByExpr())
+            expr.accept(this, step + 1);
+    }
 
-	@Override
-	public void visit(InsertStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(InsertStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(DeleteStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(DeleteStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(UpdateStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(UpdateStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(UpdateClause updateClause, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(UpdateClause updateClause, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(CreateDataverseStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-	}
+    @Override
+    public void visit(CreateDataverseStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
+    }
 
-	@Override
-	public void visit(IndexDropStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-	}
+    @Override
+    public void visit(IndexDropStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
+    }
 
-	@Override
-	public void visit(NodeGroupDropStatement deleteStatement, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-	}
+    @Override
+    public void visit(NodeGroupDropStatement deleteStatement, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
+    }
 
-	@Override
-	public void visit(DataverseDropStatement deleteStatement, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-	}
+    @Override
+    public void visit(DataverseDropStatement deleteStatement, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
+    }
 
-	@Override
-	public void visit(TypeDropStatement deleteStatement, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
-	}
+    @Override
+    public void visit(TypeDropStatement deleteStatement, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
+    }
 
-	@Override
-	public void visit(CreateFunctionStatement cfs, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(CreateFunctionStatement cfs, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(FunctionDropStatement fds, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(FunctionDropStatement fds, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(CreateFeedStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(CreateFeedStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(ConnectFeedStatement stmtDel, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(ConnectFeedStatement stmtDel, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(FeedDropStatement stmt, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(FeedDropStatement stmt, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
-	@Override
-	public void visit(CompactStatement fds, Integer arg)
-			throws AsterixException {
-		// TODO Auto-generated method stub
+    @Override
+    public void visit(CompactStatement fds, Integer arg) throws AsterixException {
+        // TODO Auto-generated method stub
 
-	}
+    }
 
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/IAqlExpressionVisitor.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/IAqlExpressionVisitor.java
index 4077cb6..864f077 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/IAqlExpressionVisitor.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/expression/visitor/IAqlExpressionVisitor.java
@@ -69,128 +69,106 @@
 
 public interface IAqlExpressionVisitor<R, T> {
 
-	R visitQuery(Query q, T arg) throws AsterixException;
+    R visitQuery(Query q, T arg) throws AsterixException;
 
-	R visitFunctionDecl(FunctionDecl fd, T arg) throws AsterixException;
+    R visitFunctionDecl(FunctionDecl fd, T arg) throws AsterixException;
 
-	R visitTypeDecl(TypeDecl td, T arg) throws AsterixException;
+    R visitTypeDecl(TypeDecl td, T arg) throws AsterixException;
 
-	R visitNodegroupDecl(NodegroupDecl ngd, T arg) throws AsterixException;
+    R visitNodegroupDecl(NodegroupDecl ngd, T arg) throws AsterixException;
 
-	R visitDatasetDecl(DatasetDecl dd, T arg) throws AsterixException;
+    R visitDatasetDecl(DatasetDecl dd, T arg) throws AsterixException;
 
-	R visitLoadFromFileStatement(LoadFromFileStatement stmtLoad, T arg)
-			throws AsterixException;
+    R visitLoadFromFileStatement(LoadFromFileStatement stmtLoad, T arg) throws AsterixException;
 
-	R visitDropStatement(DropStatement del, T arg) throws AsterixException;
+    R visitDropStatement(DropStatement del, T arg) throws AsterixException;
 
-	R visitInsertStatement(InsertStatement insert, T arg)
-			throws AsterixException;
+    R visitInsertStatement(InsertStatement insert, T arg) throws AsterixException;
 
-	R visitDeleteStatement(DeleteStatement del, T arg) throws AsterixException;
+    R visitDeleteStatement(DeleteStatement del, T arg) throws AsterixException;
 
-	R visitUpdateStatement(UpdateStatement update, T arg)
-			throws AsterixException;
+    R visitUpdateStatement(UpdateStatement update, T arg) throws AsterixException;
 
-	R visitUpdateClause(UpdateClause del, T arg) throws AsterixException;
+    R visitUpdateClause(UpdateClause del, T arg) throws AsterixException;
 
-	R visitTypeReferenceExpression(TypeReferenceExpression tre, T arg)
-			throws AsterixException;
+    R visitTypeReferenceExpression(TypeReferenceExpression tre, T arg) throws AsterixException;
 
-	R visitRecordTypeDefiniton(RecordTypeDefinition tre, T arg)
-			throws AsterixException;
+    R visitRecordTypeDefiniton(RecordTypeDefinition tre, T arg) throws AsterixException;
 
-	R visitOrderedListTypeDefiniton(OrderedListTypeDefinition olte, T arg)
-			throws AsterixException;
+    R visitOrderedListTypeDefiniton(OrderedListTypeDefinition olte, T arg) throws AsterixException;
 
-	R visitUnorderedListTypeDefiniton(UnorderedListTypeDefinition ulte, T arg)
-			throws AsterixException;
+    R visitUnorderedListTypeDefiniton(UnorderedListTypeDefinition ulte, T arg) throws AsterixException;
 
-	R visitLiteralExpr(LiteralExpr l, T arg) throws AsterixException;
+    R visitLiteralExpr(LiteralExpr l, T arg) throws AsterixException;
 
-	R visitVariableExpr(VariableExpr v, T arg) throws AsterixException;
+    R visitVariableExpr(VariableExpr v, T arg) throws AsterixException;
 
-	R visitListConstructor(ListConstructor lc, T arg) throws AsterixException;
+    R visitListConstructor(ListConstructor lc, T arg) throws AsterixException;
 
-	R visitRecordConstructor(RecordConstructor rc, T arg)
-			throws AsterixException;
+    R visitRecordConstructor(RecordConstructor rc, T arg) throws AsterixException;
 
-	R visitOperatorExpr(OperatorExpr ifbo, T arg) throws AsterixException;
+    R visitOperatorExpr(OperatorExpr ifbo, T arg) throws AsterixException;
 
-	R visitFieldAccessor(FieldAccessor fa, T arg) throws AsterixException;
+    R visitFieldAccessor(FieldAccessor fa, T arg) throws AsterixException;
 
-	R visitIndexAccessor(IndexAccessor ia, T arg) throws AsterixException;
+    R visitIndexAccessor(IndexAccessor ia, T arg) throws AsterixException;
 
-	R visitIfExpr(IfExpr ifexpr, T arg) throws AsterixException;
+    R visitIfExpr(IfExpr ifexpr, T arg) throws AsterixException;
 
-	R visitFlworExpression(FLWOGRExpression flwor, T arg)
-			throws AsterixException;
+    R visitFlworExpression(FLWOGRExpression flwor, T arg) throws AsterixException;
 
-	R visitQuantifiedExpression(QuantifiedExpression qe, T arg)
-			throws AsterixException;
+    R visitQuantifiedExpression(QuantifiedExpression qe, T arg) throws AsterixException;
 
-	R visitForClause(ForClause fc, T arg) throws AsterixException;
+    R visitForClause(ForClause fc, T arg) throws AsterixException;
 
-	R visitLetClause(LetClause lc, T arg) throws AsterixException;
+    R visitLetClause(LetClause lc, T arg) throws AsterixException;
 
-	R visitWhereClause(WhereClause wc, T arg) throws AsterixException;
+    R visitWhereClause(WhereClause wc, T arg) throws AsterixException;
 
-	R visitOrderbyClause(OrderbyClause oc, T arg) throws AsterixException;
+    R visitOrderbyClause(OrderbyClause oc, T arg) throws AsterixException;
 
-	R visitGroupbyClause(GroupbyClause gc, T arg) throws AsterixException;
+    R visitGroupbyClause(GroupbyClause gc, T arg) throws AsterixException;
 
-	R visitLimitClause(LimitClause lc, T arg) throws AsterixException;
+    R visitLimitClause(LimitClause lc, T arg) throws AsterixException;
 
-	R visitDistinctClause(DistinctClause dc, T arg) throws AsterixException;
+    R visitDistinctClause(DistinctClause dc, T arg) throws AsterixException;
 
-	R visitUnaryExpr(UnaryExpr u, T arg) throws AsterixException;
+    R visitUnaryExpr(UnaryExpr u, T arg) throws AsterixException;
 
-	R visitUnionExpr(UnionExpr u, T arg) throws AsterixException;
+    R visitUnionExpr(UnionExpr u, T arg) throws AsterixException;
 
-	R visitCreateIndexStatement(CreateIndexStatement cis, T arg)
-			throws AsterixException;
+    R visitCreateIndexStatement(CreateIndexStatement cis, T arg) throws AsterixException;
 
-	R visitCreateDataverseStatement(CreateDataverseStatement del, T arg)
-			throws AsterixException;
+    R visitCreateDataverseStatement(CreateDataverseStatement del, T arg) throws AsterixException;
 
-	R visitIndexDropStatement(IndexDropStatement del, T arg)
-			throws AsterixException;
+    R visitIndexDropStatement(IndexDropStatement del, T arg) throws AsterixException;
 
-	R visitNodeGroupDropStatement(NodeGroupDropStatement del, T arg)
-			throws AsterixException;
+    R visitNodeGroupDropStatement(NodeGroupDropStatement del, T arg) throws AsterixException;
 
-	R visitDataverseDropStatement(DataverseDropStatement del, T arg)
-			throws AsterixException;
+    R visitDataverseDropStatement(DataverseDropStatement del, T arg) throws AsterixException;
 
-	R visitTypeDropStatement(TypeDropStatement del, T arg)
-			throws AsterixException;
+    R visitTypeDropStatement(TypeDropStatement del, T arg) throws AsterixException;
 
-	R visitWriteStatement(WriteStatement ws, T arg) throws AsterixException;
+    R visitWriteStatement(WriteStatement ws, T arg) throws AsterixException;
 
-	R visitSetStatement(SetStatement ss, T arg) throws AsterixException;
+    R visitSetStatement(SetStatement ss, T arg) throws AsterixException;
 
-	R visitDisconnectFeedStatement(DisconnectFeedStatement del, T arg)
-			throws AsterixException;
+    R visitDisconnectFeedStatement(DisconnectFeedStatement del, T arg) throws AsterixException;
 
-	R visitConnectFeedStatement(ConnectFeedStatement del, T arg)
-			throws AsterixException;
+    R visitConnectFeedStatement(ConnectFeedStatement del, T arg) throws AsterixException;
 
-	R visitCreateFeedStatement(CreateFeedStatement del, T arg)
-			throws AsterixException;
+    R visitCreateFeedStatement(CreateFeedStatement del, T arg) throws AsterixException;
 
-	R visitDropFeedStatement(FeedDropStatement del, T arg)
-			throws AsterixException;
+    R visitDropFeedStatement(FeedDropStatement del, T arg) throws AsterixException;
 
-	R visitCallExpr(CallExpr pf, T arg) throws AsterixException;
+    R visitCallExpr(CallExpr pf, T arg) throws AsterixException;
 
-	R visitDataverseDecl(DataverseDecl dv, T arg) throws AsterixException;
+    R visitDataverseDecl(DataverseDecl dv, T arg) throws AsterixException;
 
-	R visit(CreateFunctionStatement cfs, T arg) throws AsterixException;
+    R visit(CreateFunctionStatement cfs, T arg) throws AsterixException;
 
-	R visitFunctionDropStatement(FunctionDropStatement del, T arg)
-			throws AsterixException;
+    R visitFunctionDropStatement(FunctionDropStatement del, T arg) throws AsterixException;
 
-	R visitCompactStatement(CompactStatement del, T arg)
-			throws AsterixException;
+    R visitCompactStatement(CompactStatement del, T arg) throws AsterixException;
 
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java
index 542208a..ca21424 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/DoubleLiteral.java
@@ -28,12 +28,11 @@
         this.value = value;
     }
 
-    @Override    
+    @Override
     public Double getValue() {
         return value;
     }
 
-
     public void setValue(Double value) {
         this.value = value;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java
index 07d6641..6ecdae8 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/FloatLiteral.java
@@ -33,7 +33,6 @@
         return value;
     }
 
-    
     public void setValue(Float value) {
         this.value = value;
     }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java
index 36942bb..5429e2f 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/literal/NullLiteral.java
@@ -51,5 +51,5 @@
     @Override
     public Object getValue() {
         return null;
-    }    
+    }
 }
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
index 246e665..b1c4c5d 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/parser/ScopeChecker.java
@@ -162,8 +162,8 @@
 
     public String extractFragment(int beginLine, int beginColumn, int endLine, int endColumn) {
         StringBuilder extract = new StringBuilder();
-        extract.append(inputLines[beginLine - 1].trim().length() > 1 ? inputLines[beginLine - 1].trim().substring(beginColumn)
-                : "");
+        extract.append(inputLines[beginLine - 1].trim().length() > 1 ? inputLines[beginLine - 1].trim().substring(
+                beginColumn) : "");
         for (int i = beginLine + 1; i < endLine; i++) {
             extract.append("\n");
             extract.append(inputLines[i - 1]);
diff --git a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
index d0a4ed4..248bcd2 100644
--- a/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
+++ b/asterix-aql/src/main/java/edu/uci/ics/asterix/aql/rewrites/AqlRewriter.java
@@ -94,555 +94,487 @@
 
 public final class AqlRewriter {
 
-	private final Query topExpr;
-	private final List<FunctionDecl> declaredFunctions;
-	private final AqlRewritingContext context;
-	private final MetadataTransactionContext mdTxnCtx;
-	private final AqlMetadataProvider metadataProvider;
+    private final Query topExpr;
+    private final List<FunctionDecl> declaredFunctions;
+    private final AqlRewritingContext context;
+    private final MetadataTransactionContext mdTxnCtx;
+    private final AqlMetadataProvider metadataProvider;
 
-	private enum DfsColor {
-		WHITE, GRAY, BLACK
-	}
+    private enum DfsColor {
+        WHITE,
+        GRAY,
+        BLACK
+    }
 
-	public AqlRewriter(List<FunctionDecl> declaredFunctions, Query topExpr,
-			AqlMetadataProvider metadataProvider) {
-		this.topExpr = topExpr;
-		context = new AqlRewritingContext(topExpr.getVarCounter());
-		this.declaredFunctions = declaredFunctions;
-		this.mdTxnCtx = metadataProvider.getMetadataTxnContext();
-		this.metadataProvider = metadataProvider;
-	}
+    public AqlRewriter(List<FunctionDecl> declaredFunctions, Query topExpr, AqlMetadataProvider metadataProvider) {
+        this.topExpr = topExpr;
+        context = new AqlRewritingContext(topExpr.getVarCounter());
+        this.declaredFunctions = declaredFunctions;
+        this.mdTxnCtx = metadataProvider.getMetadataTxnContext();
+        this.metadataProvider = metadataProvider;
+    }
 
-	public Query getExpr() {
-		return topExpr;
-	}
+    public Query getExpr() {
+        return topExpr;
+    }
 
-	public int getVarCounter() {
-		return context.getVarCounter();
-	}
+    public int getVarCounter() {
+        return context.getVarCounter();
+    }
 
-	public void rewrite() throws AsterixException {
-		wrapInLets();
-		inlineDeclaredUdfs();
-	}
+    public void rewrite() throws AsterixException {
+        wrapInLets();
+        inlineDeclaredUdfs();
+    }
 
-	private void wrapInLets() {
-		// If the top expression of the main statement is not a FLWOR, it wraps
-		// it into a let clause.
-		if (topExpr == null) {
-			return;
-		}
-		Expression body = topExpr.getBody();
-		if (body.getKind() != Kind.FLWOGR_EXPRESSION) {
-			VarIdentifier var = context.newVariable();
-			VariableExpr v = new VariableExpr(var);
-			LetClause c1 = new LetClause(v, body);
-			ArrayList<Clause> clauseList = new ArrayList<Clause>(1);
-			clauseList.add(c1);
-			FLWOGRExpression newBody = new FLWOGRExpression(clauseList,
-					new VariableExpr(var));
-			topExpr.setBody(newBody);
-		}
-	}
+    private void wrapInLets() {
+        // If the top expression of the main statement is not a FLWOR, it wraps
+        // it into a let clause.
+        if (topExpr == null) {
+            return;
+        }
+        Expression body = topExpr.getBody();
+        if (body.getKind() != Kind.FLWOGR_EXPRESSION) {
+            VarIdentifier var = context.newVariable();
+            VariableExpr v = new VariableExpr(var);
+            LetClause c1 = new LetClause(v, body);
+            ArrayList<Clause> clauseList = new ArrayList<Clause>(1);
+            clauseList.add(c1);
+            FLWOGRExpression newBody = new FLWOGRExpression(clauseList, new VariableExpr(var));
+            topExpr.setBody(newBody);
+        }
+    }
 
-	private void inlineDeclaredUdfs() throws AsterixException {
-		if (topExpr == null) {
-			return;
-		}
-		List<FunctionSignature> funIds = new ArrayList<FunctionSignature>();
-		for (FunctionDecl fdecl : declaredFunctions) {
-			funIds.add(fdecl.getSignature());
-		}
+    private void inlineDeclaredUdfs() throws AsterixException {
+        if (topExpr == null) {
+            return;
+        }
+        List<FunctionSignature> funIds = new ArrayList<FunctionSignature>();
+        for (FunctionDecl fdecl : declaredFunctions) {
+            funIds.add(fdecl.getSignature());
+        }
 
-		List<FunctionDecl> otherFDecls = new ArrayList<FunctionDecl>();
-		buildOtherUdfs(topExpr.getBody(), otherFDecls, funIds);
-		declaredFunctions.addAll(otherFDecls);
-		if (!declaredFunctions.isEmpty()) {
-			InlineUdfsVisitor visitor = new InlineUdfsVisitor(context);
-			while (topExpr.accept(visitor, declaredFunctions)) {
-				// loop until no more changes
-			}
-		}
-		declaredFunctions.removeAll(otherFDecls);
-	}
+        List<FunctionDecl> otherFDecls = new ArrayList<FunctionDecl>();
+        buildOtherUdfs(topExpr.getBody(), otherFDecls, funIds);
+        declaredFunctions.addAll(otherFDecls);
+        if (!declaredFunctions.isEmpty()) {
+            InlineUdfsVisitor visitor = new InlineUdfsVisitor(context);
+            while (topExpr.accept(visitor, declaredFunctions)) {
+                // loop until no more changes
+            }
+        }
+        declaredFunctions.removeAll(otherFDecls);
+    }
 
-	private void buildOtherUdfs(Expression expression,
-			List<FunctionDecl> functionDecls,
-			List<FunctionSignature> declaredFunctions) throws AsterixException {
-		if (expression == null) {
-			return;
-		}
-		String value = metadataProvider.getConfig().get(
-				FunctionUtils.IMPORT_PRIVATE_FUNCTIONS);
-		boolean includePrivateFunctions = (value != null) ? Boolean
-				.valueOf(value.toLowerCase()) : false;
-		Set<FunctionSignature> functionCalls = getFunctionCalls(expression);
-		for (FunctionSignature signature : functionCalls) {
+    private void buildOtherUdfs(Expression expression, List<FunctionDecl> functionDecls,
+            List<FunctionSignature> declaredFunctions) throws AsterixException {
+        if (expression == null) {
+            return;
+        }
+        String value = metadataProvider.getConfig().get(FunctionUtils.IMPORT_PRIVATE_FUNCTIONS);
+        boolean includePrivateFunctions = (value != null) ? Boolean.valueOf(value.toLowerCase()) : false;
+        Set<FunctionSignature> functionCalls = getFunctionCalls(expression);
+        for (FunctionSignature signature : functionCalls) {
 
-			if (declaredFunctions != null
-					&& declaredFunctions.contains(signature)) {
-				continue;
-			}
+            if (declaredFunctions != null && declaredFunctions.contains(signature)) {
+                continue;
+            }
 
-			Function function = lookupUserDefinedFunctionDecl(signature);
-			if (function == null) {
-				if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(
-						signature, includePrivateFunctions)) {
-					continue;
-				}
-				StringBuilder messageBuilder = new StringBuilder();
-				if (functionDecls.size() > 0) {
-					messageBuilder.append(" function "
-							+ functionDecls.get(functionDecls.size() - 1)
-									.getSignature() + " depends upon function "
-							+ signature + " which is undefined");
-				} else {
-					messageBuilder.append(" function " + signature
-							+ " is undefined ");
-				}
-				throw new AsterixException(messageBuilder.toString());
-			}
+            Function function = lookupUserDefinedFunctionDecl(signature);
+            if (function == null) {
+                if (AsterixBuiltinFunctions.isBuiltinCompilerFunction(signature, includePrivateFunctions)) {
+                    continue;
+                }
+                StringBuilder messageBuilder = new StringBuilder();
+                if (functionDecls.size() > 0) {
+                    messageBuilder.append(" function " + functionDecls.get(functionDecls.size() - 1).getSignature()
+                            + " depends upon function " + signature + " which is undefined");
+                } else {
+                    messageBuilder.append(" function " + signature + " is undefined ");
+                }
+                throw new AsterixException(messageBuilder.toString());
+            }
 
-			if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
-				FunctionDecl functionDecl = FunctionUtils
-						.getFunctionDecl(function);
-				if (functionDecl != null) {
-					if (functionDecls.contains(functionDecl)) {
-						throw new AsterixException(
-								"ERROR:Recursive invocation "
-										+ functionDecls.get(
-												functionDecls.size() - 1)
-												.getSignature() + " <==> "
-										+ functionDecl.getSignature());
-					}
-					functionDecls.add(functionDecl);
-					buildOtherUdfs(functionDecl.getFuncBody(), functionDecls,
-							declaredFunctions);
-				}
-			}
-		}
+            if (function.getLanguage().equalsIgnoreCase(Function.LANGUAGE_AQL)) {
+                FunctionDecl functionDecl = FunctionUtils.getFunctionDecl(function);
+                if (functionDecl != null) {
+                    if (functionDecls.contains(functionDecl)) {
+                        throw new AsterixException("ERROR:Recursive invocation "
+                                + functionDecls.get(functionDecls.size() - 1).getSignature() + " <==> "
+                                + functionDecl.getSignature());
+                    }
+                    functionDecls.add(functionDecl);
+                    buildOtherUdfs(functionDecl.getFuncBody(), functionDecls, declaredFunctions);
+                }
+            }
+        }
 
-	}
+    }
 
-	private Function lookupUserDefinedFunctionDecl(FunctionSignature signature)
-			throws AsterixException {
-		if (signature.getNamespace() == null) {
-			return null;
-		}
-		return MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
-	}
+    private Function lookupUserDefinedFunctionDecl(FunctionSignature signature) throws AsterixException {
+        if (signature.getNamespace() == null) {
+            return null;
+        }
+        return MetadataManager.INSTANCE.getFunction(mdTxnCtx, signature);
+    }
 
-	private Set<FunctionSignature> getFunctionCalls(Expression expression)
-			throws AsterixException {
-		Map<AsterixFunction, DfsColor> color = new HashMap<AsterixFunction, DfsColor>();
-		Map<AsterixFunction, List<AsterixFunction>> arcs = new HashMap<AsterixFunction, List<AsterixFunction>>();
-		GatherFunctionCalls gfc = new GatherFunctionCalls();
-		expression.accept(gfc, null);
-		return gfc.getCalls();
-	}
+    private Set<FunctionSignature> getFunctionCalls(Expression expression) throws AsterixException {
+        Map<AsterixFunction, DfsColor> color = new HashMap<AsterixFunction, DfsColor>();
+        Map<AsterixFunction, List<AsterixFunction>> arcs = new HashMap<AsterixFunction, List<AsterixFunction>>();
+        GatherFunctionCalls gfc = new GatherFunctionCalls();
+        expression.accept(gfc, null);
+        return gfc.getCalls();
+    }
 
-	private static class GatherFunctionCalls implements
-			IAqlExpressionVisitor<Void, Void> {
+    private static class GatherFunctionCalls implements IAqlExpressionVisitor<Void, Void> {
 
-		private final Set<FunctionSignature> calls = new HashSet<FunctionSignature>();
+        private final Set<FunctionSignature> calls = new HashSet<FunctionSignature>();
 
-		public GatherFunctionCalls() {
-		}
+        public GatherFunctionCalls() {
+        }
 
-		@Override
-		public Void visitCallExpr(CallExpr pf, Void arg)
-				throws AsterixException {
-			calls.add(pf.getFunctionSignature());
-			for (Expression e : pf.getExprList()) {
-				e.accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitCallExpr(CallExpr pf, Void arg) throws AsterixException {
+            calls.add(pf.getFunctionSignature());
+            for (Expression e : pf.getExprList()) {
+                e.accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitCreateIndexStatement(CreateIndexStatement cis, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitCreateIndexStatement(CreateIndexStatement cis, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDataverseDecl(DataverseDecl dv, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDataverseDecl(DataverseDecl dv, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDeleteStatement(DeleteStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDeleteStatement(DeleteStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDistinctClause(DistinctClause dc, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDistinctClause(DistinctClause dc, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDropStatement(DropStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDropStatement(DropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDatasetDecl(DatasetDecl dd, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDatasetDecl(DatasetDecl dd, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitFieldAccessor(FieldAccessor fa, Void arg)
-				throws AsterixException {
-			fa.getExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitFieldAccessor(FieldAccessor fa, Void arg) throws AsterixException {
+            fa.getExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitFlworExpression(FLWOGRExpression flwor, Void arg)
-				throws AsterixException {
-			for (Clause c : flwor.getClauseList()) {
-				c.accept(this, arg);
-			}
-			flwor.getReturnExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitFlworExpression(FLWOGRExpression flwor, Void arg) throws AsterixException {
+            for (Clause c : flwor.getClauseList()) {
+                c.accept(this, arg);
+            }
+            flwor.getReturnExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitForClause(ForClause fc, Void arg)
-				throws AsterixException {
-			fc.getInExpr().accept(this, arg);
-			if (fc.getPosVarExpr() != null) {
-				fc.getPosVarExpr().accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitForClause(ForClause fc, Void arg) throws AsterixException {
+            fc.getInExpr().accept(this, arg);
+            if (fc.getPosVarExpr() != null) {
+                fc.getPosVarExpr().accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitFunctionDecl(FunctionDecl fd, Void arg)
-				throws AsterixException {
-			fd.getFuncBody().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitFunctionDecl(FunctionDecl fd, Void arg) throws AsterixException {
+            fd.getFuncBody().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitGroupbyClause(GroupbyClause gc, Void arg)
-				throws AsterixException {
-			for (GbyVariableExpressionPair p : gc.getGbyPairList()) {
-				p.getExpr().accept(this, arg);
-			}
-			for (GbyVariableExpressionPair p : gc.getDecorPairList()) {
-				p.getExpr().accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitGroupbyClause(GroupbyClause gc, Void arg) throws AsterixException {
+            for (GbyVariableExpressionPair p : gc.getGbyPairList()) {
+                p.getExpr().accept(this, arg);
+            }
+            for (GbyVariableExpressionPair p : gc.getDecorPairList()) {
+                p.getExpr().accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitIfExpr(IfExpr ifexpr, Void arg)
-				throws AsterixException {
-			ifexpr.getCondExpr().accept(this, arg);
-			ifexpr.getThenExpr().accept(this, arg);
-			ifexpr.getElseExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitIfExpr(IfExpr ifexpr, Void arg) throws AsterixException {
+            ifexpr.getCondExpr().accept(this, arg);
+            ifexpr.getThenExpr().accept(this, arg);
+            ifexpr.getElseExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitIndexAccessor(IndexAccessor ia, Void arg)
-				throws AsterixException {
-			ia.getExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitIndexAccessor(IndexAccessor ia, Void arg) throws AsterixException {
+            ia.getExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitInsertStatement(InsertStatement insert, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitInsertStatement(InsertStatement insert, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitLetClause(LetClause lc, Void arg)
-				throws AsterixException {
-			lc.getBindingExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitLetClause(LetClause lc, Void arg) throws AsterixException {
+            lc.getBindingExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitLimitClause(LimitClause lc, Void arg)
-				throws AsterixException {
-			lc.getLimitExpr().accept(this, arg);
-			if (lc.getOffset() != null) {
-				lc.getOffset().accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitLimitClause(LimitClause lc, Void arg) throws AsterixException {
+            lc.getLimitExpr().accept(this, arg);
+            if (lc.getOffset() != null) {
+                lc.getOffset().accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitListConstructor(ListConstructor lc, Void arg)
-				throws AsterixException {
-			for (Expression e : lc.getExprList()) {
-				e.accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitListConstructor(ListConstructor lc, Void arg) throws AsterixException {
+            for (Expression e : lc.getExprList()) {
+                e.accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitLiteralExpr(LiteralExpr l, Void arg)
-				throws AsterixException {
-			// do nothing
-			return null;
-		}
+        @Override
+        public Void visitLiteralExpr(LiteralExpr l, Void arg) throws AsterixException {
+            // do nothing
+            return null;
+        }
 
-		@Override
-		public Void visitLoadFromFileStatement(LoadFromFileStatement stmtLoad,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitLoadFromFileStatement(LoadFromFileStatement stmtLoad, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitNodegroupDecl(NodegroupDecl ngd, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitNodegroupDecl(NodegroupDecl ngd, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitOperatorExpr(OperatorExpr op, Void arg)
-				throws AsterixException {
-			for (Expression e : op.getExprList()) {
-				e.accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitOperatorExpr(OperatorExpr op, Void arg) throws AsterixException {
+            for (Expression e : op.getExprList()) {
+                e.accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitOrderbyClause(OrderbyClause oc, Void arg)
-				throws AsterixException {
-			for (Expression e : oc.getOrderbyList()) {
-				e.accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitOrderbyClause(OrderbyClause oc, Void arg) throws AsterixException {
+            for (Expression e : oc.getOrderbyList()) {
+                e.accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitOrderedListTypeDefiniton(
-				OrderedListTypeDefinition olte, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitOrderedListTypeDefiniton(OrderedListTypeDefinition olte, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitQuantifiedExpression(QuantifiedExpression qe, Void arg)
-				throws AsterixException {
-			for (QuantifiedPair qp : qe.getQuantifiedList()) {
-				qp.getExpr().accept(this, arg);
-			}
-			qe.getSatisfiesExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitQuantifiedExpression(QuantifiedExpression qe, Void arg) throws AsterixException {
+            for (QuantifiedPair qp : qe.getQuantifiedList()) {
+                qp.getExpr().accept(this, arg);
+            }
+            qe.getSatisfiesExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitQuery(Query q, Void arg) throws AsterixException {
-			q.getBody().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitQuery(Query q, Void arg) throws AsterixException {
+            q.getBody().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitRecordConstructor(RecordConstructor rc, Void arg)
-				throws AsterixException {
-			for (FieldBinding fb : rc.getFbList()) {
-				fb.getLeftExpr().accept(this, arg);
-				fb.getRightExpr().accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitRecordConstructor(RecordConstructor rc, Void arg) throws AsterixException {
+            for (FieldBinding fb : rc.getFbList()) {
+                fb.getLeftExpr().accept(this, arg);
+                fb.getRightExpr().accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitRecordTypeDefiniton(RecordTypeDefinition tre, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitRecordTypeDefiniton(RecordTypeDefinition tre, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitSetStatement(SetStatement ss, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitSetStatement(SetStatement ss, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitTypeDecl(TypeDecl td, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitTypeDecl(TypeDecl td, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitTypeReferenceExpression(TypeReferenceExpression tre,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitTypeReferenceExpression(TypeReferenceExpression tre, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitUnaryExpr(UnaryExpr u, Void arg)
-				throws AsterixException {
-			u.getExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitUnaryExpr(UnaryExpr u, Void arg) throws AsterixException {
+            u.getExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitUnionExpr(UnionExpr u, Void arg)
-				throws AsterixException {
-			for (Expression e : u.getExprs()) {
-				e.accept(this, arg);
-			}
-			return null;
-		}
+        @Override
+        public Void visitUnionExpr(UnionExpr u, Void arg) throws AsterixException {
+            for (Expression e : u.getExprs()) {
+                e.accept(this, arg);
+            }
+            return null;
+        }
 
-		@Override
-		public Void visitUnorderedListTypeDefiniton(
-				UnorderedListTypeDefinition ulte, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitUnorderedListTypeDefiniton(UnorderedListTypeDefinition ulte, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitUpdateClause(UpdateClause del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitUpdateClause(UpdateClause del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitUpdateStatement(UpdateStatement update, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitUpdateStatement(UpdateStatement update, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitVariableExpr(VariableExpr v, Void arg)
-				throws AsterixException {
-			// do nothing
-			return null;
-		}
+        @Override
+        public Void visitVariableExpr(VariableExpr v, Void arg) throws AsterixException {
+            // do nothing
+            return null;
+        }
 
-		@Override
-		public Void visitWhereClause(WhereClause wc, Void arg)
-				throws AsterixException {
-			wc.getWhereExpr().accept(this, arg);
-			return null;
-		}
+        @Override
+        public Void visitWhereClause(WhereClause wc, Void arg) throws AsterixException {
+            wc.getWhereExpr().accept(this, arg);
+            return null;
+        }
 
-		@Override
-		public Void visitWriteStatement(WriteStatement ws, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitWriteStatement(WriteStatement ws, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		public Set<FunctionSignature> getCalls() {
-			return calls;
-		}
+        public Set<FunctionSignature> getCalls() {
+            return calls;
+        }
 
-		@Override
-		public Void visitCreateDataverseStatement(CreateDataverseStatement del,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitCreateDataverseStatement(CreateDataverseStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitIndexDropStatement(IndexDropStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitIndexDropStatement(IndexDropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitNodeGroupDropStatement(NodeGroupDropStatement del,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitNodeGroupDropStatement(NodeGroupDropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDataverseDropStatement(DataverseDropStatement del,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDataverseDropStatement(DataverseDropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitTypeDropStatement(TypeDropStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitTypeDropStatement(TypeDropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDisconnectFeedStatement(DisconnectFeedStatement del,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDisconnectFeedStatement(DisconnectFeedStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visit(CreateFunctionStatement cfs, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visit(CreateFunctionStatement cfs, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitFunctionDropStatement(FunctionDropStatement del,
-				Void arg) throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitFunctionDropStatement(FunctionDropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitCreateFeedStatement(CreateFeedStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitCreateFeedStatement(CreateFeedStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitConnectFeedStatement(ConnectFeedStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitConnectFeedStatement(ConnectFeedStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitDropFeedStatement(FeedDropStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitDropFeedStatement(FeedDropStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-		@Override
-		public Void visitCompactStatement(CompactStatement del, Void arg)
-				throws AsterixException {
-			// TODO Auto-generated method stub
-			return null;
-		}
+        @Override
+        public Void visitCompactStatement(CompactStatement del, Void arg) throws AsterixException {
+            // TODO Auto-generated method stub
+            return null;
+        }
 
-	}
+    }
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java
index 26ed19b..3480bd8 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixAppRuntimeContext.java
@@ -63,7 +63,7 @@
     public void deinitialize() throws HyracksDataException;
 
     public double getBloomFilterFalsePositiveRate();
-    
+
     public List<IVirtualBufferCache> getVirtualBufferCaches(int datasetID);
 
     public IFeedManager getFeedManager();
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java
index db636de..8171d22 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/api/IAsterixContextInfo.java
@@ -25,5 +25,4 @@
      */
     public ICCApplicationContext getCCApplicationContext();
 
- 
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java
index 978577a..992d43f 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/AsterixTransactionProperties.java
@@ -25,7 +25,7 @@
     private static final int TXN_LOG_BUFFER_PAGESIZE_DEFAULT = (128 << 10); // 128KB
 
     private static final String TXN_LOG_PARTITIONSIZE_KEY = "txn.log.partitionsize";
-    private static final long TXN_LOG_PARTITIONSIZE_DEFAULT = ((long)2 << 30); // 2GB
+    private static final long TXN_LOG_PARTITIONSIZE_DEFAULT = ((long) 2 << 30); // 2GB
 
     private static final String TXN_LOG_CHECKPOINT_LSNTHRESHOLD_KEY = "txn.log.checkpoint.lsnthreshold";
     private static final int TXN_LOG_CHECKPOINT_LSNTHRESHOLD_DEFAULT = (64 << 20); // 64M
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/IAsterixPropertiesProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/IAsterixPropertiesProvider.java
index fc6539c..e696519 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/IAsterixPropertiesProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/config/IAsterixPropertiesProvider.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.common.config;
 
-
 public interface IAsterixPropertiesProvider {
     public AsterixStorageProperties getStorageProperties();
 
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java
index 27751e3..f0137ba 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/ITransactionSubsystemProvider.java
@@ -20,6 +20,6 @@
 import edu.uci.ics.asterix.common.transactions.ITransactionSubsystem;
 import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
 
-public interface ITransactionSubsystemProvider extends Serializable{
+public interface ITransactionSubsystemProvider extends Serializable {
     public ITransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx);
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
index 0e8e117..ef8dd85 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/context/TransactionSubsystemProvider.java
@@ -27,8 +27,8 @@
 public class TransactionSubsystemProvider implements ITransactionSubsystemProvider {
     @Override
     public ITransactionSubsystem getTransactionSubsystem(IHyracksTaskContext ctx) {
-        IAsterixAppRuntimeContext runtimeCtx = (IAsterixAppRuntimeContext) ctx.getJobletContext().getApplicationContext()
-                .getApplicationObject();
+        IAsterixAppRuntimeContext runtimeCtx = (IAsterixAppRuntimeContext) ctx.getJobletContext()
+                .getApplicationContext().getApplicationObject();
         return runtimeCtx.getTransactionSubsystem();
     }
 }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java
index 857ddd5..16b62f8 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/exceptions/ACIDException.java
@@ -56,7 +56,7 @@
     public ACIDException(String message) {
         super(message);
     }
-    
+
     public ACIDException(Throwable cause) {
         super(cause);
     }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/feeds/FeedRuntimeManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/feeds/FeedRuntimeManager.java
index 92aa4ee..a68f6b8 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/feeds/FeedRuntimeManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/feeds/FeedRuntimeManager.java
@@ -107,7 +107,7 @@
         feedRuntimes.put(runtimeId, feedRuntime);
     }
 
-    public void deregisterFeedRuntime(FeedRuntimeId runtimeId)  {
+    public void deregisterFeedRuntime(FeedRuntimeId runtimeId) {
         feedRuntimes.remove(runtimeId);
         if (feedRuntimes.isEmpty()) {
             synchronized (this) {
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
index 4e05048..56d0a4b 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/functions/FunctionSignature.java
@@ -19,10 +19,10 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
 
 public class FunctionSignature implements Serializable {
-    private  String namespace;
-    private  String name;
-    private  int arity;
-    private  String rep;
+    private String namespace;
+    private String name;
+    private int arity;
+    private String rep;
 
     public FunctionSignature(String namespace, String name, int arity) {
         this.namespace = namespace;
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java
index c549e7d..77cc489 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/AbstractOperationCallback.java
@@ -45,7 +45,7 @@
         MurmurHash128Bit.hash3_x64_128(tuple, primaryKeyFields, SEED, longHashes);
         return Math.abs((int) longHashes[0]);
     }
-    
+
     public void resetLocalNumActiveOperations() {
         transactorLocalNumActiveOperations.set(0);
     }
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java
index a752afa..cff2c92 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ILockManager.java
@@ -64,10 +64,9 @@
      * @param txnContext
      * @throws ACIDException
      *             TODO
-     * @return 
+     * @return
      */
-    public void unlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext)
-            throws ACIDException;
+    public void unlock(DatasetId datasetId, int entityHashValue, ITransactionContext txnContext) throws ACIDException;
 
     /**
      * Call to lock and unlock a specific resource in a specific lock mode
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java
index 6d2f3cb..6af5ebf 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/IRecoveryManager.java
@@ -33,7 +33,7 @@
         HEALTHY,
         CORRUPTED
     }
-    
+
     public class ResourceType {
         public static final byte LSM_BTREE = 0;
         public static final byte LSM_RTREE = 1;
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java
index ffd4cc2..b4bb354 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/ITransactionManager.java
@@ -52,7 +52,8 @@
      * 
      * @param jobId
      *            a unique value for the transaction id.
-     * @param createIfNotExist TODO
+     * @param createIfNotExist
+     *            TODO
      * @return
      * @throws ACIDException
      */
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java
index a08924d..f329e28 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/JobId.java
@@ -50,7 +50,7 @@
         return "JID:" + id;
     }
 
-	public void setId(int jobId) {
-		id = jobId;
-	}
+    public void setId(int jobId) {
+        id = jobId;
+    }
 }
\ No newline at end of file
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableLong.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableLong.java
index 4480aba..1fd913f 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableLong.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/transactions/MutableLong.java
@@ -17,14 +17,13 @@
 public class MutableLong {
     private long val;
 
-    
     public MutableLong() {
     }
-    
+
     public MutableLong(long val) {
         this.val = val;
     }
-    
+
     public void set(long val) {
         this.val = val;
     }
@@ -32,10 +31,10 @@
     public long get() {
         return val;
     }
-    
+
     @Override
     public int hashCode() {
-        return (int)val;
+        return (int) val;
     }
 
     @Override
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/ANameSchema.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/ANameSchema.java
index a34b1d4..b809745 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/ANameSchema.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/ANameSchema.java
@@ -12,14 +12,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.common.utils;
-
-/*
- * Author: Guangqiang Li
- * Created on Nov 30, 2009 
- */
-public class ANameSchema {
-    public static final int LOCALNAME_PROPERTY = 0;
-    public static final int URI = 1;
-    public static final int NODE_TYPE = 2;
-}
+package edu.uci.ics.asterix.common.utils;
+
+/*
+ * Author: Guangqiang Li
+ * Created on Nov 30, 2009 
+ */
+public class ANameSchema {
+    public static final int LOCALNAME_PROPERTY = 0;
+    public static final int URI = 1;
+    public static final int NODE_TYPE = 2;
+}
diff --git a/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java b/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java
index 17e85b2..e2228c1 100644
--- a/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java
+++ b/asterix-common/src/main/java/edu/uci/ics/asterix/common/utils/UTF8CharSequence.java
@@ -19,73 +19,71 @@
 
 public class UTF8CharSequence implements CharSequence {
 
-	private int start;
-	private int len;
-	private char[] buf;
+    private int start;
+    private int len;
+    private char[] buf;
 
-	public UTF8CharSequence(IValueReference valueRef, int start) {
-		reset(valueRef, start);
-	}
+    public UTF8CharSequence(IValueReference valueRef, int start) {
+        reset(valueRef, start);
+    }
 
-	public UTF8CharSequence() {
-	}
+    public UTF8CharSequence() {
+    }
 
-	@Override
-	public char charAt(int index) {
-		if (index >= len || index < 0) {
-			throw new IndexOutOfBoundsException("No index " + index
-					+ " for string of length " + len);
-		}
-		return buf[index];
-	}
+    @Override
+    public char charAt(int index) {
+        if (index >= len || index < 0) {
+            throw new IndexOutOfBoundsException("No index " + index + " for string of length " + len);
+        }
+        return buf[index];
+    }
 
-	@Override
-	public int length() {
-		return len;
-	}
+    @Override
+    public int length() {
+        return len;
+    }
 
-	@Override
-	public CharSequence subSequence(int start, int end) {
-		UTF8CharSequence carSeq = new UTF8CharSequence();
-		carSeq.len = end - start;
-		if (end != start) {
-			carSeq.buf = new char[carSeq.len];
-			System.arraycopy(buf, start, carSeq.buf, 0, carSeq.len);
-		}
-		return carSeq;
-	}
+    @Override
+    public CharSequence subSequence(int start, int end) {
+        UTF8CharSequence carSeq = new UTF8CharSequence();
+        carSeq.len = end - start;
+        if (end != start) {
+            carSeq.buf = new char[carSeq.len];
+            System.arraycopy(buf, start, carSeq.buf, 0, carSeq.len);
+        }
+        return carSeq;
+    }
 
-	public void reset(IValueReference valueRef, int start) {
-		this.start = start;
-		resetLength(valueRef);
-		if (buf == null || buf.length < len) {
-			buf = new char[len];
-		}
-		int sStart = start + 2;
-		int c = 0;
-		int i = 0;
-		byte[] bytes = valueRef.getByteArray();
-		while (c < len) {
-			buf[i++] = UTF8StringPointable.charAt(bytes, sStart + c);
-			c += UTF8StringPointable.charSize(bytes, sStart + c);
-		}
+    public void reset(IValueReference valueRef, int start) {
+        this.start = start;
+        resetLength(valueRef);
+        if (buf == null || buf.length < len) {
+            buf = new char[len];
+        }
+        int sStart = start + 2;
+        int c = 0;
+        int i = 0;
+        byte[] bytes = valueRef.getByteArray();
+        while (c < len) {
+            buf[i++] = UTF8StringPointable.charAt(bytes, sStart + c);
+            c += UTF8StringPointable.charSize(bytes, sStart + c);
+        }
 
-	}
+    }
 
-	private void resetLength(IValueReference valueRef) {
-		this.len = UTF8StringPointable.getUTFLength(valueRef.getByteArray(),
-				start);
-	}
+    private void resetLength(IValueReference valueRef) {
+        this.len = UTF8StringPointable.getUTFLength(valueRef.getByteArray(), start);
+    }
 
-	@Override
-	public String toString() {
-		StringBuffer bf = new StringBuffer();
-		if (buf != null) {
-			for (int i = 0; i < buf.length; i++) {
-				bf.append(buf[i]);
-			}
-		}
-		return new String(bf);
-	}
+    @Override
+    public String toString() {
+        StringBuffer bf = new StringBuffer();
+        if (buf != null) {
+            for (int i = 0; i < buf.length; i++) {
+                bf.append(buf[i]);
+            }
+        }
+        return new String(bf);
+    }
 
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java
index 5a3649f..6b2ee32 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/ClusterInfo.java
@@ -18,9 +18,9 @@
 
 public class ClusterInfo {
 
-	List<NodeInfo> nodes;
+    List<NodeInfo> nodes;
 
-	public ClusterInfo(List<NodeInfo> nodes) {
-		this.nodes = nodes;
-	}
+    public ClusterInfo(List<NodeInfo> nodes) {
+        this.nodes = nodes;
+    }
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
index c51bae3..b2992b6 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/api/NodeInfo.java
@@ -16,19 +16,19 @@
 
 public class NodeInfo {
 
-	private final String id;
-	private final String ip;
+    private final String id;
+    private final String ip;
 
-	public NodeInfo(String id, String ip) {
-		this.id = id;
-		this.ip = ip;
-	}
+    public NodeInfo(String id, String ip) {
+        this.id = id;
+        this.ip = ip;
+    }
 
-	public String getId() {
-		return id;
-	}
+    public String getId() {
+        return id;
+    }
 
-	public String getIp() {
-		return ip;
-	}
+    public String getIp() {
+        return ip;
+    }
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
index c86dfae..f9590c0 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/driver/EventConfig.java
@@ -18,19 +18,19 @@
 
 public class EventConfig {
 
-	@Option(name = "-h", required = false, usage = "Help")
-	public boolean help = false;
+    @Option(name = "-h", required = false, usage = "Help")
+    public boolean help = false;
 
-	@Option(name = "-d", required = false, usage = "Show the execution on a timeline")
-	public boolean dryRun = false;
+    @Option(name = "-d", required = false, usage = "Show the execution on a timeline")
+    public boolean dryRun = false;
 
-	@Option(name = "-s", required = false, usage = "Seed for randomization")
-	public int seed = -1;
+    @Option(name = "-s", required = false, usage = "Seed for randomization")
+    public int seed = -1;
 
-	@Option(name = "-c", required = true, usage = "Path to cluster configuration (REQUIRED)")
-	public String clusterPath;
+    @Option(name = "-c", required = true, usage = "Path to cluster configuration (REQUIRED)")
+    public String clusterPath;
 
-	@Option(name = "-p", required = true, usage = "Path to pattern configuration (REQUIRED)")
-	public String patternPath;
+    @Option(name = "-p", required = true, usage = "Path to pattern configuration (REQUIRED)")
+    public String patternPath;
 
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java
index b329171..3ab2809 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/error/VerificationUtil.java
@@ -29,107 +29,98 @@
 
 public class VerificationUtil {
 
-	private static final String VERIFY_SCRIPT_PATH = AsterixEventService
-			.getEventHome()
-			+ File.separator
-			+ "scripts"
-			+ File.separator
-			+ "verify.sh";
+    private static final String VERIFY_SCRIPT_PATH = AsterixEventService.getEventHome() + File.separator + "scripts"
+            + File.separator + "verify.sh";
 
-	public static AsterixRuntimeState getAsterixRuntimeState(
-			AsterixInstance instance) throws Exception {
+    public static AsterixRuntimeState getAsterixRuntimeState(AsterixInstance instance) throws Exception {
 
-		Cluster cluster = instance.getCluster();
-		List<String> args = new ArrayList<String>();
-		args.add(instance.getName());
-		args.add(instance.getCluster().getMasterNode().getClusterIp());
-		for (Node node : cluster.getNode()) {
-			args.add(node.getClusterIp());
-			args.add(instance.getName() + "_" + node.getId());
-		}
-		Thread.sleep(2000);
-		String output = AsterixEventServiceUtil.executeLocalScript(
-				VERIFY_SCRIPT_PATH, args);
-		boolean ccRunning = true;
-		List<String> failedNCs = new ArrayList<String>();
-		String[] infoFields;
-		ProcessInfo pInfo;
-		List<ProcessInfo> processes = new ArrayList<ProcessInfo>();
+        Cluster cluster = instance.getCluster();
+        List<String> args = new ArrayList<String>();
+        args.add(instance.getName());
+        args.add(instance.getCluster().getMasterNode().getClusterIp());
+        for (Node node : cluster.getNode()) {
+            args.add(node.getClusterIp());
+            args.add(instance.getName() + "_" + node.getId());
+        }
+        Thread.sleep(2000);
+        String output = AsterixEventServiceUtil.executeLocalScript(VERIFY_SCRIPT_PATH, args);
+        boolean ccRunning = true;
+        List<String> failedNCs = new ArrayList<String>();
+        String[] infoFields;
+        ProcessInfo pInfo;
+        List<ProcessInfo> processes = new ArrayList<ProcessInfo>();
 
-		for (String line : output.split("\n")) {
-			String nodeid = null;
-			infoFields = line.split(":");
-			try {
-				int pid = Integer.parseInt(infoFields[3]);
-				if (infoFields[0].equals("NC")) {
-					nodeid = infoFields[2].split("_")[1];
-				} else {
-					nodeid = instance.getCluster().getMasterNode().getId();
-				}
-				pInfo = new ProcessInfo(infoFields[0], infoFields[1], nodeid,
-						pid);
-				processes.add(pInfo);
-			} catch (Exception e) {
-				if (infoFields[0].equalsIgnoreCase("CC")) {
-					ccRunning = false;
-				} else {
-					failedNCs.add(infoFields[1]);
-				}
-			}
-		}
-		return new AsterixRuntimeState(processes, failedNCs, ccRunning);
-	}
+        for (String line : output.split("\n")) {
+            String nodeid = null;
+            infoFields = line.split(":");
+            try {
+                int pid = Integer.parseInt(infoFields[3]);
+                if (infoFields[0].equals("NC")) {
+                    nodeid = infoFields[2].split("_")[1];
+                } else {
+                    nodeid = instance.getCluster().getMasterNode().getId();
+                }
+                pInfo = new ProcessInfo(infoFields[0], infoFields[1], nodeid, pid);
+                processes.add(pInfo);
+            } catch (Exception e) {
+                if (infoFields[0].equalsIgnoreCase("CC")) {
+                    ccRunning = false;
+                } else {
+                    failedNCs.add(infoFields[1]);
+                }
+            }
+        }
+        return new AsterixRuntimeState(processes, failedNCs, ccRunning);
+    }
 
-	public static void updateInstanceWithRuntimeDescription(
-			AsterixInstance instance, AsterixRuntimeState state,
-			boolean expectedRunning) {
-		StringBuffer summary = new StringBuffer();
-		if (expectedRunning) {
-			if (!state.isCcRunning()) {
-				summary.append("Cluster Controller not running at "
-						+ instance.getCluster().getMasterNode().getId() + "\n");
-				instance.setState(State.UNUSABLE);
-			}
-			if (state.getFailedNCs() != null && !state.getFailedNCs().isEmpty()) {
-				summary.append("Node Controller not running at the following nodes"
-						+ "\n");
-				for (String failedNC : state.getFailedNCs()) {
-					summary.append(failedNC + "\n");
-				}
-				// instance.setState(State.UNUSABLE);
-			}
-			if (!(instance.getState().equals(State.UNUSABLE))) {
-				 instance.setState(State.ACTIVE);
-			}
-		} else {
-			if (state.getProcesses() != null && state.getProcesses().size() > 0) {
-				summary.append("Following process still running " + "\n");
-				for (ProcessInfo pInfo : state.getProcesses()) {
-					summary.append(pInfo + "\n");
-				}
-				// instance.setState(State.UNUSABLE);
-			} else {
-				// instance.setState(State.INACTIVE);
-			}
-		}
-		state.setSummary(summary.toString());
-		instance.setAsterixRuntimeStates(state);
-	}
+    public static void updateInstanceWithRuntimeDescription(AsterixInstance instance, AsterixRuntimeState state,
+            boolean expectedRunning) {
+        StringBuffer summary = new StringBuffer();
+        if (expectedRunning) {
+            if (!state.isCcRunning()) {
+                summary.append("Cluster Controller not running at " + instance.getCluster().getMasterNode().getId()
+                        + "\n");
+                instance.setState(State.UNUSABLE);
+            }
+            if (state.getFailedNCs() != null && !state.getFailedNCs().isEmpty()) {
+                summary.append("Node Controller not running at the following nodes" + "\n");
+                for (String failedNC : state.getFailedNCs()) {
+                    summary.append(failedNC + "\n");
+                }
+                // instance.setState(State.UNUSABLE);
+            }
+            if (!(instance.getState().equals(State.UNUSABLE))) {
+                instance.setState(State.ACTIVE);
+            }
+        } else {
+            if (state.getProcesses() != null && state.getProcesses().size() > 0) {
+                summary.append("Following process still running " + "\n");
+                for (ProcessInfo pInfo : state.getProcesses()) {
+                    summary.append(pInfo + "\n");
+                }
+                // instance.setState(State.UNUSABLE);
+            } else {
+                // instance.setState(State.INACTIVE);
+            }
+        }
+        state.setSummary(summary.toString());
+        instance.setAsterixRuntimeStates(state);
+    }
 
-	public static void verifyBackupRestoreConfiguration(String hdfsUrl,
-			String hadoopVersion, String hdfsBackupDir) throws Exception {
-		StringBuffer errorCheck = new StringBuffer();
-		if (hdfsUrl == null || hdfsUrl.length() == 0) {
-			errorCheck.append("\n HDFS Url not configured");
-		}
-		if (hadoopVersion == null || hadoopVersion.length() == 0) {
-			errorCheck.append("\n HDFS version not configured");
-		}
-		if (hdfsBackupDir == null || hdfsBackupDir.length() == 0) {
-			errorCheck.append("\n HDFS backup directory not configured");
-		}
-		if (errorCheck.length() > 0) {
-			throw new Exception("Incomplete hdfs configuration" + errorCheck);
-		}
-	}
+    public static void verifyBackupRestoreConfiguration(String hdfsUrl, String hadoopVersion, String hdfsBackupDir)
+            throws Exception {
+        StringBuffer errorCheck = new StringBuffer();
+        if (hdfsUrl == null || hdfsUrl.length() == 0) {
+            errorCheck.append("\n HDFS Url not configured");
+        }
+        if (hadoopVersion == null || hadoopVersion.length() == 0) {
+            errorCheck.append("\n HDFS version not configured");
+        }
+        if (hdfsBackupDir == null || hdfsBackupDir.length() == 0) {
+            errorCheck.append("\n HDFS backup directory not configured");
+        }
+        if (errorCheck.length() > 0) {
+            throw new Exception("Incomplete hdfs configuration" + errorCheck);
+        }
+    }
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
index f7155f3..d05c5ab 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/DefaultOutputHandler.java
@@ -16,7 +16,6 @@
 
 import edu.uci.ics.asterix.event.schema.pattern.Event;
 
-
 public class DefaultOutputHandler implements IOutputHandler {
 
     @Override
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
index 5dd370c..f6cf905 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/IOutputHandler.java
@@ -16,7 +16,6 @@
 
 import edu.uci.ics.asterix.event.schema.pattern.Event;
 
-
 public interface IOutputHandler {
 
     public OutputAnalysis reportEventOutput(Event event, String output);
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java
index 6d5c492..875ee63 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/Randomizer.java
@@ -19,48 +19,47 @@
 
 public class Randomizer {
 
-	private static final Logger LOGGER = Logger.getLogger(Randomizer.class
-			.getName());
-	private static Randomizer INSTANCE;
-	private final Random random;
-	private final int seed;
+    private static final Logger LOGGER = Logger.getLogger(Randomizer.class.getName());
+    private static Randomizer INSTANCE;
+    private final Random random;
+    private final int seed;
 
-	public static Randomizer getInstance(int seed) {
-		if (INSTANCE == null) {
-			INSTANCE = new Randomizer(seed);
-		}
-		return INSTANCE;
-	}
+    public static Randomizer getInstance(int seed) {
+        if (INSTANCE == null) {
+            INSTANCE = new Randomizer(seed);
+        }
+        return INSTANCE;
+    }
 
-	public static Randomizer getInstance() {
-		if (INSTANCE == null) {
-			INSTANCE = new Randomizer();
-		}
-		return INSTANCE;
-	}
+    public static Randomizer getInstance() {
+        if (INSTANCE == null) {
+            INSTANCE = new Randomizer();
+        }
+        return INSTANCE;
+    }
 
-	private Randomizer() {
-		Random rm = new Random();
-		seed = rm.nextInt(10000);
-		random = new Random(seed);
-		LOGGER.info("SEED:" + seed);
-	}
+    private Randomizer() {
+        Random rm = new Random();
+        seed = rm.nextInt(10000);
+        random = new Random(seed);
+        LOGGER.info("SEED:" + seed);
+    }
 
-	private Randomizer(int seed) {
-		this.seed = seed;
-		random = new Random(seed);
-		LOGGER.info("SEED:" + seed);
-	}
+    private Randomizer(int seed) {
+        this.seed = seed;
+        random = new Random(seed);
+        LOGGER.info("SEED:" + seed);
+    }
 
-	public Random getRandom() {
-		return random;
-	}
+    public Random getRandom() {
+        return random;
+    }
 
-	public int getSeed() {
-		return seed;
-	}
+    public int getSeed() {
+        return seed;
+    }
 
-	public int getRandomInt(int min, int max) {
-		return min + random.nextInt(max - min + 1);
-	}
+    public int getRandomInt(int min, int max) {
+        return min + random.nextInt(max - min + 1);
+    }
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
index 2524d9a..1098fbe 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/management/ValueType.java
@@ -16,79 +16,80 @@
 
 import edu.uci.ics.asterix.event.schema.pattern.Value;
 
-
 public class ValueType {
 
-	public static enum Type {
-		ABS, RANDOM_RANGE, RANDOM_MIN_MAX
-	}
+    public static enum Type {
+        ABS,
+        RANDOM_RANGE,
+        RANDOM_MIN_MAX
+    }
 
-	private Value value;
-	private Type type;
+    private Value value;
+    private Type type;
 
-	public ValueType(Value value) {
-		this.value = value;
-		if (value.getAbsvalue() != null) {
-			type = Type.ABS;
-		} else if (value.getRandom() != null) {
-			if (value.getRandom().getMinmax() != null) {
-				type = Type.RANDOM_MIN_MAX;
-			} else if (value.getRandom().getRange() != null) {
-				type = Type.RANDOM_RANGE;
-			} else {
-				throw new IllegalStateException("Incorrect value type");
-			}
-		}
-	}
+    public ValueType(Value value) {
+        this.value = value;
+        if (value.getAbsvalue() != null) {
+            type = Type.ABS;
+        } else if (value.getRandom() != null) {
+            if (value.getRandom().getMinmax() != null) {
+                type = Type.RANDOM_MIN_MAX;
+            } else if (value.getRandom().getRange() != null) {
+                type = Type.RANDOM_RANGE;
+            } else {
+                throw new IllegalStateException("Incorrect value type");
+            }
+        }
+    }
 
-	public int getMin() {
-		switch (type) {
-		case RANDOM_MIN_MAX:
-			return Integer.parseInt(value.getRandom().getMinmax().getMin());
-		default:
-			throw new IllegalStateException("");
-		}
-	}
+    public int getMin() {
+        switch (type) {
+            case RANDOM_MIN_MAX:
+                return Integer.parseInt(value.getRandom().getMinmax().getMin());
+            default:
+                throw new IllegalStateException("");
+        }
+    }
 
-	public int getMax() {
-		switch (type) {
-		case RANDOM_MIN_MAX:
-			return Integer.parseInt(value.getRandom().getMinmax().getMax());
-		default:
-			throw new IllegalStateException("");
-		}
-	}
+    public int getMax() {
+        switch (type) {
+            case RANDOM_MIN_MAX:
+                return Integer.parseInt(value.getRandom().getMinmax().getMax());
+            default:
+                throw new IllegalStateException("");
+        }
+    }
 
-	public String[] getRangeSet() {
-		switch (type) {
-		case RANDOM_RANGE:
-			return value.getRandom().getRange().getSet().split(" ");
-		default:
-			throw new IllegalStateException("");
-		}
-	}
+    public String[] getRangeSet() {
+        switch (type) {
+            case RANDOM_RANGE:
+                return value.getRandom().getRange().getSet().split(" ");
+            default:
+                throw new IllegalStateException("");
+        }
+    }
 
-	public String[] getRangeExcluded() {
-		switch (type) {
-		case RANDOM_RANGE:
-			String exl = value.getRandom().getRange().getExclude();
-			return exl != null ? exl.split(" ") : null;
-		default:
-			throw new IllegalStateException("");
-		}
-	}
+    public String[] getRangeExcluded() {
+        switch (type) {
+            case RANDOM_RANGE:
+                String exl = value.getRandom().getRange().getExclude();
+                return exl != null ? exl.split(" ") : null;
+            default:
+                throw new IllegalStateException("");
+        }
+    }
 
-	public String getAbsoluteValue() {
-		switch (type) {
-		case ABS:
-			return value.getAbsvalue();
-		default:
-			throw new IllegalStateException("");
-		}
-	}
+    public String getAbsoluteValue() {
+        switch (type) {
+            case ABS:
+                return value.getAbsvalue();
+            default:
+                throw new IllegalStateException("");
+        }
+    }
 
-	public Type getType() {
-		return type;
-	}
+    public Type getType() {
+        return type;
+    }
 
 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java
index 2a70862..71233ea 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/AsterixEventServiceUtil.java
@@ -244,8 +244,8 @@
     private static Node getMetadataNode(String asterixInstanceName, Cluster cluster) {
         Node metadataNode = null;
         if (cluster.getMetadataNode() != null) {
-            for(Node node: cluster.getNode()){
-                if(node.getId().equals(cluster.getMetadataNode())){
+            for (Node node : cluster.getNode()) {
+                if (node.getId().equals(cluster.getMetadataNode())) {
                     metadataNode = node;
                     break;
                 }
diff --git a/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java
index 56e5337..c5ea908 100644
--- a/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java
+++ b/asterix-events/src/main/java/edu/uci/ics/asterix/event/service/ServiceProvider.java
@@ -18,7 +18,7 @@
 
     public static ServiceProvider INSTANCE = new ServiceProvider();
     private static ILookupService lookupService = new ZooKeeperService();
-    
+
     private ServiceProvider() {
 
     }
@@ -26,5 +26,5 @@
     public ILookupService getLookupService() {
         return lookupService;
     }
- 
+
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
index 45a827c..0c9e4b9 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/dataset/adapter/FileSystemBasedAdapter.java
@@ -37,7 +37,8 @@
     protected final IAType sourceDatatype;
     protected IHyracksTaskContext ctx;
 
-    public FileSystemBasedAdapter(ITupleParserFactory parserFactory, IAType sourceDatatype, IHyracksTaskContext ctx) throws HyracksDataException {
+    public FileSystemBasedAdapter(ITupleParserFactory parserFactory, IAType sourceDatatype, IHyracksTaskContext ctx)
+            throws HyracksDataException {
         this.tupleParser = parserFactory.createTupleParser(ctx);
         this.sourceDatatype = sourceDatatype;
         this.ctx = ctx;
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java
index c4c40fd..5f0badd 100755
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunction.java
@@ -85,9 +85,9 @@
     public void deinitialize() {
         externalFunction.deinitialize();
     }
-    
+
     @Override
-    public void initialize(IFunctionHelper functionHelper) throws Exception{
+    public void initialize(IFunctionHelper functionHelper) throws Exception {
         externalFunction.initialize(functionHelper);
     }
 
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java
index b3914e2..72ab2f9 100755
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/ExternalFunctionDescriptorProvider.java
@@ -25,7 +25,8 @@
 
 public class ExternalFunctionDescriptorProvider {
 
-    public static IFunctionDescriptor getExternalFunctionDescriptor(IExternalFunctionInfo finfo) throws AsterixException {
+    public static IFunctionDescriptor getExternalFunctionDescriptor(IExternalFunctionInfo finfo)
+            throws AsterixException {
         switch (finfo.getKind()) {
             case SCALAR:
                 return new ExternalScalarFunctionDescriptor(finfo);
@@ -62,4 +63,3 @@
     }
 
 }
-
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java
index 0192e33..43eef52 100755
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IFunctionHelper.java
@@ -27,6 +27,6 @@
     public IJObject getResultObject();
 
     public void setResult(IJObject result) throws IOException, AsterixException;
-    
+
     public IJObject getObject(JTypeTag jtypeTag);
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java
index fee002e..741e071 100755
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/IResultCollector.java
@@ -36,6 +36,6 @@
     public void writeListResult(AOrderedList list) throws AsterixException;
 
     public IAObject getComplexTypeResultHolder();
-    
+
     public DataOutput getDataOutput();
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java
index c0b6945..27613bd 100755
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/RuntimeExternalFunctionUtil.java
@@ -97,5 +97,4 @@
         }
     }
 
-    
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java
index fcc35eb..dfbc464 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/library/java/IJType.java
@@ -5,7 +5,7 @@
 
 public interface IJType {
 
-      public ATypeTag getTypeTag();
-      
-      public IAObject getIAObject();
+    public ATypeTag getTypeTag();
+
+    public IAObject getIAObject();
 }
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java
index d6de58e5..113a112 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/DNSResolver.java
@@ -35,8 +35,7 @@
             if (nodeControllers == null || nodeControllers.isEmpty()) {
                 throw new AsterixException(" No node controllers found at the address: " + value);
             }
-            String chosenNCId = nodeControllers.toArray(new String[]{})[random
-                    .nextInt(nodeControllers.size())];
+            String chosenNCId = nodeControllers.toArray(new String[] {})[random.nextInt(nodeControllers.size())];
             return chosenNCId;
         } catch (AsterixException ae) {
             throw ae;
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java
index c9572cd..b590ab9 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolver.java
@@ -17,8 +17,7 @@
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
 /**
- * A policy for resolving a name to a node controller id.   
- *
+ * A policy for resolving a name to a node controller id.
  */
 public interface INodeResolver {
 
diff --git a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java
index 655fe3e..9335f9e 100644
--- a/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java
+++ b/asterix-external-data/src/main/java/edu/uci/ics/asterix/external/util/INodeResolverFactory.java
@@ -17,7 +17,7 @@
 /**
  * Factory for creating an instance of INodeResolver
  * 
- *  @see INodeResolver
+ * @see INodeResolver
  */
 public interface INodeResolverFactory {
 
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
index 4be8cd5..44a6428 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/AlterCommand.java
@@ -29,50 +29,44 @@
 
 public class AlterCommand extends AbstractCommand {
 
-	@Override
-	protected void execCommand() throws Exception {
-		InstallerDriver.initConfig(true);
-		String instanceName = ((AlterConfig) config).name;
-		AsterixEventServiceUtil.validateAsterixInstanceExists(instanceName,
-				State.INACTIVE);
-		ILookupService lookupService = ServiceProvider.INSTANCE
-				.getLookupService();
-		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-				.getAsterixInstance(instanceName);
-		AsterixEventServiceUtil.createClusterProperties(instance.getCluster(),
-				instance.getAsterixConfiguration());
-		AsterixConfiguration asterixConfiguration = InstallerUtil
-				.getAsterixConfiguration(((AlterConfig) config).confPath);
-		instance.setAsterixConfiguration(asterixConfiguration);
-		instance.setModifiedTimestamp(new Date());
-		lookupService.updateAsterixInstance(instance);
-		LOGGER.info("Altered configuration settings for Asterix instance: "
-				+ instanceName);
+    @Override
+    protected void execCommand() throws Exception {
+        InstallerDriver.initConfig(true);
+        String instanceName = ((AlterConfig) config).name;
+        AsterixEventServiceUtil.validateAsterixInstanceExists(instanceName, State.INACTIVE);
+        ILookupService lookupService = ServiceProvider.INSTANCE.getLookupService();
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(instanceName);
+        AsterixEventServiceUtil.createClusterProperties(instance.getCluster(), instance.getAsterixConfiguration());
+        AsterixConfiguration asterixConfiguration = InstallerUtil
+                .getAsterixConfiguration(((AlterConfig) config).confPath);
+        instance.setAsterixConfiguration(asterixConfiguration);
+        instance.setModifiedTimestamp(new Date());
+        lookupService.updateAsterixInstance(instance);
+        LOGGER.info("Altered configuration settings for Asterix instance: " + instanceName);
 
-	}
+    }
 
-	@Override
-	protected CommandConfig getCommandConfig() {
-		return new AlterConfig();
-	}
+    @Override
+    protected CommandConfig getCommandConfig() {
+        return new AlterConfig();
+    }
 
-	@Override
-	protected String getUsageDescription() {
-		return "\nAlter the instance's configuration settings."
-				+ "\nPrior to running this command, the instance is required to be INACTIVE state."
-				+ "\nChanged configuration settings will be reflected when the instance is started."
-				+ "\n\nAvailable arguments/options"
-				+ "\n-n name of the ASTERIX instance.";
-	}
+    @Override
+    protected String getUsageDescription() {
+        return "\nAlter the instance's configuration settings."
+                + "\nPrior to running this command, the instance is required to be INACTIVE state."
+                + "\nChanged configuration settings will be reflected when the instance is started."
+                + "\n\nAvailable arguments/options" + "\n-n name of the ASTERIX instance.";
+    }
 
 }
 
 class AlterConfig extends CommandConfig {
 
-	@Option(name = "-n", required = true, usage = "Name of Asterix Instance")
-	public String name;
+    @Option(name = "-n", required = true, usage = "Name of Asterix Instance")
+    public String name;
 
-	@Option(name = "-a", required = true, usage = "Path to asterix instance configuration")
-	public String confPath;
+    @Option(name = "-a", required = true, usage = "Path to asterix instance configuration")
+    public String confPath;
 
 }
diff --git a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
index 820948c..5aa3123 100644
--- a/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
+++ b/asterix-installer/src/main/java/edu/uci/ics/asterix/installer/command/StopCommand.java
@@ -40,7 +40,8 @@
         String asterixInstanceName = ((StopConfig) config).name;
         AsterixInstance asterixInstance = AsterixEventServiceUtil.validateAsterixInstanceExists(asterixInstanceName,
                 State.ACTIVE, State.UNUSABLE);
-        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(asterixInstance.getCluster());
+        AsterixEventServiceClient client = AsterixEventService.getAsterixEventServiceClient(asterixInstance
+                .getCluster());
 
         List<Pattern> ncKillPatterns = new ArrayList<Pattern>();
         for (Node node : asterixInstance.getCluster().getNode()) {
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java
index b343fd0..62b79f1 100644
--- a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixFaultToleranceIT.java
@@ -63,7 +63,7 @@
     @Test
     public void test() throws Exception {
         for (TestCaseContext testCaseCtx : testCaseCollection) {
-             TestsUtils.executeTest(PATH_ACTUAL, testCaseCtx, null);
+            TestsUtils.executeTest(PATH_ACTUAL, testCaseCtx, null);
         }
     }
 
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java
index 4574f45..1312c5b 100644
--- a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/test/AsterixInstallerIntegrationUtil.java
@@ -41,199 +41,178 @@
 
 public class AsterixInstallerIntegrationUtil {
 
-	private static String managixHome;
-	private static String clusterConfigurationPath;
-	private static final CommandHandler cmdHandler = new CommandHandler();
-	public static final String ASTERIX_INSTANCE_NAME = "asterix";
-	private static final String CC_IP_ADDRESS = "127.0.0.1";
-	private static final int DEFAULT_HYRACKS_CC_CLIENT_PORT = 1098;
-	private static final int zookeeperClientPort = 2900;
-	private static final int zookeeperTestClientPort = 3945;
+    private static String managixHome;
+    private static String clusterConfigurationPath;
+    private static final CommandHandler cmdHandler = new CommandHandler();
+    public static final String ASTERIX_INSTANCE_NAME = "asterix";
+    private static final String CC_IP_ADDRESS = "127.0.0.1";
+    private static final int DEFAULT_HYRACKS_CC_CLIENT_PORT = 1098;
+    private static final int zookeeperClientPort = 2900;
+    private static final int zookeeperTestClientPort = 3945;
 
-	private static IHyracksClientConnection hcc;
+    private static IHyracksClientConnection hcc;
 
-	private static final Logger LOGGER = Logger
-			.getLogger(AsterixInstallerIntegrationUtil.class.getName());
+    private static final Logger LOGGER = Logger.getLogger(AsterixInstallerIntegrationUtil.class.getName());
 
-	public static void deinit() throws Exception {
-		deleteInstance();
-		stopZookeeper();
-	}
+    public static void deinit() throws Exception {
+        deleteInstance();
+        stopZookeeper();
+    }
 
-	public static void init() throws Exception {
-		File asterixProjectDir = new File(System.getProperty("user.dir"));
-		
-		
-		File installerTargetDir = new File(asterixProjectDir, "target");
-		String managixHomeDirName = installerTargetDir
-				.list(new FilenameFilter() {
-					@Override
-					public boolean accept(File dir, String name) {
-						return new File(dir, name).isDirectory()
-								&& name.startsWith("asterix-installer")
-								&& name.endsWith("binary-assembly");
-					}
+    public static void init() throws Exception {
+        File asterixProjectDir = new File(System.getProperty("user.dir"));
 
-				})[0];
-		managixHome = new File(installerTargetDir, managixHomeDirName)
-				.getAbsolutePath();
-		System.setProperty("log4j.configuration", managixHome + File.separator
-				+ "conf" + File.separator + "log4j.properties");
+        File installerTargetDir = new File(asterixProjectDir, "target");
+        String managixHomeDirName = installerTargetDir.list(new FilenameFilter() {
+            @Override
+            public boolean accept(File dir, String name) {
+                return new File(dir, name).isDirectory() && name.startsWith("asterix-installer")
+                        && name.endsWith("binary-assembly");
+            }
 
-		managixHome = AsterixInstallerIntegrationUtil.getManagixHome();
-		clusterConfigurationPath = managixHome + File.separator + "clusters"
-				+ File.separator + "local" + File.separator + "local.xml";
+        })[0];
+        managixHome = new File(installerTargetDir, managixHomeDirName).getAbsolutePath();
+        System.setProperty("log4j.configuration", managixHome + File.separator + "conf" + File.separator
+                + "log4j.properties");
 
-		InstallerDriver.setManagixHome(managixHome);
+        managixHome = AsterixInstallerIntegrationUtil.getManagixHome();
+        clusterConfigurationPath = managixHome + File.separator + "clusters" + File.separator + "local"
+                + File.separator + "local.xml";
 
-		String command = "configure";
-		cmdHandler.processCommand(command.split(" "));
-		command = "validate -c " + clusterConfigurationPath;
-		cmdHandler.processCommand(command.split(" "));
+        InstallerDriver.setManagixHome(managixHome);
 
-		startZookeeper();
-		Thread.sleep(2000);
-		InstallerDriver.initConfig(true);
-		createInstance();
-		hcc = new HyracksConnection(CC_IP_ADDRESS,
-				DEFAULT_HYRACKS_CC_CLIENT_PORT);
-	}
+        String command = "configure";
+        cmdHandler.processCommand(command.split(" "));
+        command = "validate -c " + clusterConfigurationPath;
+        cmdHandler.processCommand(command.split(" "));
 
-	public static IHyracksClientConnection getHyracksConnection() {
-		return hcc;
-	}
+        startZookeeper();
+        Thread.sleep(2000);
+        InstallerDriver.initConfig(true);
+        createInstance();
+        hcc = new HyracksConnection(CC_IP_ADDRESS, DEFAULT_HYRACKS_CC_CLIENT_PORT);
+    }
 
-	private static void startZookeeper() throws Exception {
-		initZookeeperTestConfiguration(zookeeperClientPort);
-		String script = managixHome + File.separator + "bin" + File.separator
-				+ "managix";
+    public static IHyracksClientConnection getHyracksConnection() {
+        return hcc;
+    }
 
-		// shutdown zookeeper if running
-		String command = "shutdown";
-		cmdHandler.processCommand(command.split(" "));
+    private static void startZookeeper() throws Exception {
+        initZookeeperTestConfiguration(zookeeperClientPort);
+        String script = managixHome + File.separator + "bin" + File.separator + "managix";
 
-		Thread.sleep(2000);
+        // shutdown zookeeper if running
+        String command = "shutdown";
+        cmdHandler.processCommand(command.split(" "));
 
-		// start zookeeper
-		initZookeeperTestConfiguration(zookeeperTestClientPort);
-		ProcessBuilder pb2 = new ProcessBuilder(script, "describe");
-		Map<String, String> env2 = pb2.environment();
-		env2.put("MANAGIX_HOME", managixHome);
-		pb2.start();
+        Thread.sleep(2000);
 
-	}
+        // start zookeeper
+        initZookeeperTestConfiguration(zookeeperTestClientPort);
+        ProcessBuilder pb2 = new ProcessBuilder(script, "describe");
+        Map<String, String> env2 = pb2.environment();
+        env2.put("MANAGIX_HOME", managixHome);
+        pb2.start();
 
-	public static void createInstance() throws Exception {
+    }
 
-		String command = null;
-		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
-		if (instance != null) {
-			transformIntoRequiredState(State.INACTIVE);
-			command = "delete -n " + ASTERIX_INSTANCE_NAME;
-			cmdHandler.processCommand(command.split(" "));
-		}
+    public static void createInstance() throws Exception {
 
-		command = "create -n " + ASTERIX_INSTANCE_NAME + " " + "-c" + " "
-				+ clusterConfigurationPath;
-		cmdHandler.processCommand(command.split(" "));
+        String command = null;
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+                .getAsterixInstance(ASTERIX_INSTANCE_NAME);
+        if (instance != null) {
+            transformIntoRequiredState(State.INACTIVE);
+            command = "delete -n " + ASTERIX_INSTANCE_NAME;
+            cmdHandler.processCommand(command.split(" "));
+        }
 
-		instance = ServiceProvider.INSTANCE.getLookupService()
-				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
-		AsterixRuntimeState state = VerificationUtil
-				.getAsterixRuntimeState(instance);
-		assert (state.getFailedNCs().isEmpty() && state.isCcRunning());
-	}
+        command = "create -n " + ASTERIX_INSTANCE_NAME + " " + "-c" + " " + clusterConfigurationPath;
+        cmdHandler.processCommand(command.split(" "));
 
-	private static void initZookeeperTestConfiguration(int port)
-			throws JAXBException, FileNotFoundException {
-		String installerConfPath = InstallerDriver.getManagixHome()
-				+ File.separator + InstallerDriver.MANAGIX_CONF_XML;
-		JAXBContext ctx = JAXBContext.newInstance(Configuration.class);
-		Unmarshaller unmarshaller = ctx.createUnmarshaller();
-		Configuration configuration = (Configuration) unmarshaller
-				.unmarshal(new File(installerConfPath));
-		configuration.getZookeeper().setClientPort(new BigInteger("" + port));
-		Marshaller marshaller = ctx.createMarshaller();
-		marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
-		marshaller.marshal(configuration, new FileOutputStream(
-				installerConfPath));
-	}
+        instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(ASTERIX_INSTANCE_NAME);
+        AsterixRuntimeState state = VerificationUtil.getAsterixRuntimeState(instance);
+        assert (state.getFailedNCs().isEmpty() && state.isCcRunning());
+    }
 
-	public static void transformIntoRequiredState(AsterixInstance.State state)
-			throws Exception {
-		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
-		assert (instance != null);
-		if (instance.getState().equals(state)) {
-			return;
-		}
-		if (state.equals(AsterixInstance.State.UNUSABLE)) {
-			throw new IllegalArgumentException("Invalid desired state");
-		}
+    private static void initZookeeperTestConfiguration(int port) throws JAXBException, FileNotFoundException {
+        String installerConfPath = InstallerDriver.getManagixHome() + File.separator + InstallerDriver.MANAGIX_CONF_XML;
+        JAXBContext ctx = JAXBContext.newInstance(Configuration.class);
+        Unmarshaller unmarshaller = ctx.createUnmarshaller();
+        Configuration configuration = (Configuration) unmarshaller.unmarshal(new File(installerConfPath));
+        configuration.getZookeeper().setClientPort(new BigInteger("" + port));
+        Marshaller marshaller = ctx.createMarshaller();
+        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
+        marshaller.marshal(configuration, new FileOutputStream(installerConfPath));
+    }
 
-		String command = null;
-		switch (instance.getState()) {
-		case ACTIVE:
-			command = "stop -n " + ASTERIX_INSTANCE_NAME;
-			break;
-		case INACTIVE:
-			command = "start -n " + ASTERIX_INSTANCE_NAME;
-			break;
-		}
-		cmdHandler.processCommand(command.split(" "));
-	}
+    public static void transformIntoRequiredState(AsterixInstance.State state) throws Exception {
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+                .getAsterixInstance(ASTERIX_INSTANCE_NAME);
+        assert (instance != null);
+        if (instance.getState().equals(state)) {
+            return;
+        }
+        if (state.equals(AsterixInstance.State.UNUSABLE)) {
+            throw new IllegalArgumentException("Invalid desired state");
+        }
 
-	private static void stopZookeeper() throws IOException, JAXBException {
-		String script = managixHome + File.separator + "bin" + File.separator
-				+ "managix";
-		// shutdown zookeeper if running
-		ProcessBuilder pb = new ProcessBuilder(script, "shutdown");
-		Map<String, String> env = pb.environment();
-		env.put("MANAGIX_HOME", managixHome);
-		pb.start();
-	}
+        String command = null;
+        switch (instance.getState()) {
+            case ACTIVE:
+                command = "stop -n " + ASTERIX_INSTANCE_NAME;
+                break;
+            case INACTIVE:
+                command = "start -n " + ASTERIX_INSTANCE_NAME;
+                break;
+        }
+        cmdHandler.processCommand(command.split(" "));
+    }
 
-	private static void deleteInstance() throws Exception {
-		String command = null;
-		AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
-				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
+    private static void stopZookeeper() throws IOException, JAXBException {
+        String script = managixHome + File.separator + "bin" + File.separator + "managix";
+        // shutdown zookeeper if running
+        ProcessBuilder pb = new ProcessBuilder(script, "shutdown");
+        Map<String, String> env = pb.environment();
+        env.put("MANAGIX_HOME", managixHome);
+        pb.start();
+    }
 
-		if (instance == null) {
-			return;
-		} else {
-			transformIntoRequiredState(State.INACTIVE);
-			command = "delete -n " + ASTERIX_INSTANCE_NAME;
-			cmdHandler.processCommand(command.split(" "));
-		}
-		instance = ServiceProvider.INSTANCE.getLookupService()
-				.getAsterixInstance(ASTERIX_INSTANCE_NAME);
-		assert (instance == null);
-	}
+    private static void deleteInstance() throws Exception {
+        String command = null;
+        AsterixInstance instance = ServiceProvider.INSTANCE.getLookupService()
+                .getAsterixInstance(ASTERIX_INSTANCE_NAME);
 
-	public static String getManagixHome() {
-		return managixHome;
-	}
+        if (instance == null) {
+            return;
+        } else {
+            transformIntoRequiredState(State.INACTIVE);
+            command = "delete -n " + ASTERIX_INSTANCE_NAME;
+            cmdHandler.processCommand(command.split(" "));
+        }
+        instance = ServiceProvider.INSTANCE.getLookupService().getAsterixInstance(ASTERIX_INSTANCE_NAME);
+        assert (instance == null);
+    }
 
-	public static void installLibrary(String libraryName,
-			String libraryDataverse, String libraryPath) throws Exception {
-		transformIntoRequiredState(State.INACTIVE);
-		String command = "install -n " + ASTERIX_INSTANCE_NAME + " -d "
-				+ libraryDataverse + " -l " + libraryName + " -p "
-				+ libraryPath;
-		cmdHandler.processCommand(command.split(" "));
-	}
+    public static String getManagixHome() {
+        return managixHome;
+    }
 
-	public static void uninstallLibrary(String dataverseName, String libraryName)
-			throws Exception {
-		transformIntoRequiredState(State.INACTIVE);
-		String command = "uninstall -n " + ASTERIX_INSTANCE_NAME + " -d "
-				+ dataverseName + " -l " + "libraryName";
-		cmdHandler.processCommand(command.split(" "));
-	}
+    public static void installLibrary(String libraryName, String libraryDataverse, String libraryPath) throws Exception {
+        transformIntoRequiredState(State.INACTIVE);
+        String command = "install -n " + ASTERIX_INSTANCE_NAME + " -d " + libraryDataverse + " -l " + libraryName
+                + " -p " + libraryPath;
+        cmdHandler.processCommand(command.split(" "));
+    }
 
-	public static void executeCommand(String command) throws Exception {
-		cmdHandler.processCommand(command.trim().split(" "));
-	}
+    public static void uninstallLibrary(String dataverseName, String libraryName) throws Exception {
+        transformIntoRequiredState(State.INACTIVE);
+        String command = "uninstall -n " + ASTERIX_INSTANCE_NAME + " -d " + dataverseName + " -l " + "libraryName";
+        cmdHandler.processCommand(command.split(" "));
+    }
+
+    public static void executeCommand(String command) throws Exception {
+        cmdHandler.processCommand(command.trim().split(" "));
+    }
 
 }
diff --git a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/transaction/RecoveryIT.java b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/transaction/RecoveryIT.java
index 89cbec8..99283d7 100644
--- a/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/transaction/RecoveryIT.java
+++ b/asterix-installer/src/test/java/edu/uci/ics/asterix/installer/transaction/RecoveryIT.java
@@ -84,7 +84,7 @@
         scriptHomePath = asterixInstallerPath + File.separator + "src" + File.separator + "test" + File.separator
                 + "resources" + File.separator + "transactionts" + File.separator + "scripts";
         env.put("SCRIPT_HOME", scriptHomePath);
-        
+
         TestsUtils.executeScript(pb, scriptHomePath + File.separator + "setup_teardown" + File.separator
                 + "configure_and_validate.sh");
         TestsUtils.executeScript(pb, scriptHomePath + File.separator + "setup_teardown" + File.separator
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java
index e58466d..b606839 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/MetadataException.java
@@ -17,7 +17,6 @@
 
 import edu.uci.ics.asterix.common.exceptions.AsterixException;
 
-
 public class MetadataException extends AsterixException {
     private static final long serialVersionUID = 1L;
 
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java
index 6a553bd..971b9a7 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/api/IMetadataEntity.java
@@ -20,11 +20,11 @@
 import edu.uci.ics.asterix.metadata.MetadataCache;
 
 public interface IMetadataEntity extends Serializable {
-    
+
     public static final int PENDING_NO_OP = 0;
     public static final int PENDING_ADD_OP = 1;
     public static final int PENDING_DROP_OP = 2;
-    
+
     Object addToCache(MetadataCache cache);
 
     Object dropFromCache(MetadataCache cache);
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
index 68f9a74..632b6fd 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/bootstrap/MetadataPrimaryIndexes.java
@@ -57,7 +57,6 @@
 
     public static final int FIRST_AVAILABLE_USER_DATASET_ID = 100;
 
-
     /**
      * Create all metadata primary index descriptors. MetadataRecordTypes must
      * have been initialized before calling this init.
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
index 519c831..d4a937d 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/dataset/hints/IHint.java
@@ -16,7 +16,6 @@
 
 import edu.uci.ics.hyracks.algebricks.common.utils.Pair;
 
-
 /**
  * Represents a hint provided as part of an AQL statement.
  */
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java
index 0827f09..3e61ec5 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitDataSink.java
@@ -18,7 +18,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IDataSink;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.IPartitioningProperty;
 
-
 public class FileSplitDataSink implements IDataSink {
 
     private FileSplitSinkId id;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java
index 9ca7291..5801002 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/FileSplitSinkId.java
@@ -17,7 +17,6 @@
 
 import edu.uci.ics.hyracks.dataflow.std.file.FileSplit;
 
-
 public class FileSplitSinkId {
 
     private FileSplit fileSplit;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
index 50c6225..3fd9285 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetDataSink.java
@@ -20,7 +20,6 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.RandomPartitioningProperty;
 import edu.uci.ics.hyracks.algebricks.core.algebra.properties.ResultSetDomain;
 
-
 public class ResultSetDataSink implements IDataSink {
 
     private ResultSetSinkId id;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
index 4fa3907..99d026b 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/declared/ResultSetSinkId.java
@@ -16,7 +16,6 @@
 
 import edu.uci.ics.hyracks.api.dataset.ResultSetId;
 
-
 public class ResultSetSinkId {
 
     private final ResultSetId resultSetId;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java
index 7b894f1..4eee082 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Dataverse.java
@@ -42,7 +42,7 @@
     public String getDataFormat() {
         return dataFormat;
     }
-    
+
     public int getPendingOp() {
         return pendingOp;
     }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java
index ed7efae..773cc8d 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/entities/Index.java
@@ -98,11 +98,11 @@
     public boolean isPrimaryIndex() {
         return isPrimaryIndex;
     }
-    
+
     public int getPendingOp() {
         return pendingOp;
     }
-    
+
     public void setPendingOp(int pendingOp) {
         this.pendingOp = pendingOp;
     }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java
index 4921920..2dc7c56 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/AbstractFeedDatasourceAdapter.java
@@ -1,6 +1,5 @@
 package edu.uci.ics.asterix.metadata.feeds;
 
-
 public abstract class AbstractFeedDatasourceAdapter implements IDatasourceAdapter {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java
index d33bf5e..9b00322 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/feeds/FeedMessageOperatorDescriptor.java
@@ -45,6 +45,4 @@
         return new FeedMessageOperatorNodePushable(ctx, feedId, feedMessage, partition, nPartitions);
     }
 
-   
-
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java
index 6bf5be3..4a06b7d 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/AsterixExternalScalarFunctionInfo.java
@@ -35,5 +35,4 @@
         super();
     }
 
-    
 }
diff --git a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java
index f699c41..d0e6aeb 100644
--- a/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java
+++ b/asterix-metadata/src/main/java/edu/uci/ics/asterix/metadata/functions/ExternalFunctionCompilerUtil.java
@@ -49,10 +49,9 @@
 
 public class ExternalFunctionCompilerUtil implements Serializable {
 
-    private  static Pattern orderedListPattern = Pattern.compile("\\[*\\]");
-    private  static Pattern unorderedListPattern = Pattern.compile("[{{*}}]");
+    private static Pattern orderedListPattern = Pattern.compile("\\[*\\]");
+    private static Pattern unorderedListPattern = Pattern.compile("[{{*}}]");
 
-  
     public static IFunctionInfo getExternalFunctionInfo(MetadataTransactionContext txnCtx, Function function)
             throws MetadataException {
 
@@ -211,7 +210,7 @@
         // TODO Auto-generated method stub
         return null;
     }
-    
+
     public static void main(String args[]) throws FileNotFoundException, IOException {
         ExternalFunctionCompilerUtil obj = new ExternalFunctionCompilerUtil();
         ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("/tmp/ecu.obj"));
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java
index e263e87..ba7e65e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AListElementToken.java
@@ -26,7 +26,7 @@
     protected int length;
     protected int tokenLength;
     protected int typeTag;
-    
+
     @Override
     public byte[] getData() {
         return data;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java
index 3b474fd..f71fcf4 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/common/AqlNullableTypeComputer.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.dataflow.data.common;
 
-
 import edu.uci.ics.asterix.om.types.AUnionType;
 import edu.uci.ics.asterix.om.types.IAType;
 import edu.uci.ics.asterix.om.types.TypeHelper;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java
index d2396e0..d83b0a0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/comparators/AObjectAscBinaryComparatorFactory.java
@@ -65,7 +65,7 @@
 
             @Override
             public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) {
-            	
+
                 if (b1[s1] == ATypeTag.NULL.serialize()) {
                     if (b2[s2] == ATypeTag.NULL.serialize())
                         return 0;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java
index 27456e4..c1f5c3d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADateTimePrinter.java
@@ -56,6 +56,6 @@
         } catch (IOException e) {
             throw new AlgebricksException(e);
         }
-        
+
     }
 }
\ No newline at end of file
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADayTimeDurationPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADayTimeDurationPrinter.java
index 1386bb1..466df99 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADayTimeDurationPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ADayTimeDurationPrinter.java
@@ -27,7 +27,7 @@
 
     public static final ADayTimeDurationPrinter INSTANCE = new ADayTimeDurationPrinter();
     private static final GregorianCalendarSystem gCalInstance = GregorianCalendarSystem.getInstance();
-    
+
     @Override
     public void init() throws AlgebricksException {
         // TODO Auto-generated method stub
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java
index 782cfde..4ae93e1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AFloatPrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AFloatPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java
index 20c2b7d..f578020 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt16PrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AInt16PrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java
index b530f03..9887f17 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt32PrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AInt32PrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java
index 59cb480..7ae5169 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AInt8PrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AInt8PrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java
index 2ab8d19..9272100 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/AIntervalPrinter.java
@@ -46,21 +46,21 @@
         if (typetag == ATypeTag.DATE.serialize()) {
             ps.print("-date(\"");
             timeInstancePrinter = ADatePrinter.INSTANCE;
-            ((ADatePrinter)timeInstancePrinter).printString(b, s + 4, 4, ps);
+            ((ADatePrinter) timeInstancePrinter).printString(b, s + 4, 4, ps);
             ps.print(", ");
-            ((ADatePrinter)timeInstancePrinter).printString(b, s + 12, 4, ps);
+            ((ADatePrinter) timeInstancePrinter).printString(b, s + 12, 4, ps);
         } else if (typetag == ATypeTag.TIME.serialize()) {
             ps.print("-time(\"");
             timeInstancePrinter = ATimePrinter.INSTANCE;
-            ((ATimePrinter)timeInstancePrinter).printString(b, s + 4, 4, ps);
+            ((ATimePrinter) timeInstancePrinter).printString(b, s + 4, 4, ps);
             ps.print(", ");
-            ((ATimePrinter)timeInstancePrinter).printString(b, s + 12, 4, ps);
+            ((ATimePrinter) timeInstancePrinter).printString(b, s + 12, 4, ps);
         } else if (typetag == ATypeTag.DATETIME.serialize()) {
             ps.print("-datetime(\"");
             timeInstancePrinter = ADateTimePrinter.INSTANCE;
-            ((ADateTimePrinter)timeInstancePrinter).printString(b, s, 8, ps);
+            ((ADateTimePrinter) timeInstancePrinter).printString(b, s, 8, ps);
             ps.print(", ");
-            ((ADateTimePrinter)timeInstancePrinter).printString(b, s + 8, 8, ps);
+            ((ADateTimePrinter) timeInstancePrinter).printString(b, s + 8, 8, ps);
         } else {
             throw new AlgebricksException("Unsupport internal time types in interval: " + typetag);
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java
index cbd0450..bfbf3f0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/ANullPrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class ANullPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java
index 3f74c36..f3c1a29 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/APointPrinterFactory.java
@@ -17,7 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
 public class APointPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java
index aceec9f..b8371ee 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AFloatPrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AFloatPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java
index cd309d0..65bf3d9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt16PrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AInt16PrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java
index ac6badd..1707960 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt32PrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AInt32PrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java
index 755fb22..8b6467a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AInt8PrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class AInt8PrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java
index 1930d10..4dc33e8 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/ANullPrinterFactory.java
@@ -17,8 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
-
 public class ANullPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java
index 7fbcd2b..a6c0cc0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/APointPrinterFactory.java
@@ -17,7 +17,6 @@
 import edu.uci.ics.hyracks.algebricks.data.IPrinter;
 import edu.uci.ics.hyracks.algebricks.data.IPrinterFactory;
 
-
 public class APointPrinterFactory implements IPrinterFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java
index 1f93b21..a4cdbfa 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/printers/json/AUnionPrinterFactory.java
@@ -48,8 +48,8 @@
                 unionList = unionType.getUnionList();
                 printers = new IPrinter[unionType.getUnionList().size()];
                 for (int i = 0; i < printers.length; i++) {
-                    printers[i] = (AqlJSONPrinterFactoryProvider.INSTANCE
-                            .getPrinterFactory(unionType.getUnionList().get(i))).createPrinter();
+                    printers[i] = (AqlJSONPrinterFactoryProvider.INSTANCE.getPrinterFactory(unionType.getUnionList()
+                            .get(i))).createPrinter();
                     printers[i].init();
                 }
             }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java
index fb077bd..8b34558 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ADateTimeSerializerDeserializer.java
@@ -69,17 +69,18 @@
             short timeOffset = (short) ((datetime.charAt(0) == '-') ? 1 : 0);
 
             timeOffset += 8;
-            
-            if(datetime.charAt(timeOffset) != 'T'){
+
+            if (datetime.charAt(timeOffset) != 'T') {
                 timeOffset += 2;
-                if(datetime.charAt(timeOffset) != 'T'){
+                if (datetime.charAt(timeOffset) != 'T') {
                     throw new AlgebricksException(errorMessage + ": missing T");
                 }
             }
 
             chrononTimeInMs = ADateParserFactory.parseDatePart(datetime, 0, timeOffset);
 
-            chrononTimeInMs += ATimeParserFactory.parseTimePart(datetime, timeOffset + 1, datetime.length() - timeOffset - 1);
+            chrononTimeInMs += ATimeParserFactory.parseTimePart(datetime, timeOffset + 1, datetime.length()
+                    - timeOffset - 1);
         } catch (Exception e) {
             throw new HyracksDataException(e);
         }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java
index 269c508..513ca46 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ARectangleSerializerDeserializer.java
@@ -102,7 +102,8 @@
                     Double.parseDouble(points[1].split(",")[1]));
             if (aRectanglePoint1.getX() > aRectanglePoint2.getX() && aRectanglePoint1.getY() > aRectanglePoint2.getY()) {
                 aRectangle.setValue(aRectanglePoint2, aRectanglePoint1);
-            } else if (aRectanglePoint1.getX() < aRectanglePoint2.getX() && aRectanglePoint1.getY() < aRectanglePoint2.getY()) {
+            } else if (aRectanglePoint1.getX() < aRectanglePoint2.getX()
+                    && aRectanglePoint1.getY() < aRectanglePoint2.getY()) {
                 aRectangle.setValue(aRectanglePoint1, aRectanglePoint2);
             } else {
                 throw new IllegalArgumentException(
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java
index 91316f2..a881ece 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/serde/ATimeSerializerDeserializer.java
@@ -36,7 +36,7 @@
     private static final ISerializerDeserializer<ATime> timeSerde = AqlSerializerDeserializerProvider.INSTANCE
             .getSerializerDeserializer(BuiltinType.ATIME);
     private static final AMutableTime aTime = new AMutableTime(0);
-    
+
     private ATimeSerializerDeserializer() {
     }
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java
index f7a05c6..eb27cb9 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/dataflow/data/nontagged/valueproviders/AqlPrimitiveValueProviderFactory.java
@@ -23,7 +23,6 @@
 import edu.uci.ics.hyracks.storage.am.rtree.impls.FloatPrimitiveValueProviderFactory;
 import edu.uci.ics.hyracks.storage.am.rtree.impls.IntegerPrimitiveValueProviderFactory;
 
-
 public class AqlPrimitiveValueProviderFactory implements IPrimitiveValueProviderFactory {
 
     private static final long serialVersionUID = 1L;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java
index c5f833e..3ebedde 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/base/IDataFormat.java
@@ -83,6 +83,6 @@
     public INormalizedKeyComputerFactoryProvider getNormalizedKeyComputerFactoryProvider();
 
     public IBinaryHashFunctionFamilyProvider getBinaryHashFunctionFamilyProvider();
-    
+
     public IPredicateEvaluatorFactoryProvider getPredicateEvaluatorFactoryProvider();
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java
index 7763bae..cd7e1fd 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlBinaryHashFunctionFamilyProvider.java
@@ -26,20 +26,18 @@
  * We use a type-independent binary hash function family from the hyracks
  * codebase
  */
-public class AqlBinaryHashFunctionFamilyProvider implements
-		IBinaryHashFunctionFamilyProvider, Serializable {
+public class AqlBinaryHashFunctionFamilyProvider implements IBinaryHashFunctionFamilyProvider, Serializable {
 
-	private static final long serialVersionUID = 1L;
-	public static final AqlBinaryHashFunctionFamilyProvider INSTANCE = new AqlBinaryHashFunctionFamilyProvider();
+    private static final long serialVersionUID = 1L;
+    public static final AqlBinaryHashFunctionFamilyProvider INSTANCE = new AqlBinaryHashFunctionFamilyProvider();
 
-	private AqlBinaryHashFunctionFamilyProvider() {
+    private AqlBinaryHashFunctionFamilyProvider() {
 
-	}
+    }
 
-	@Override
-	public IBinaryHashFunctionFamily getBinaryHashFunctionFamily(Object type)
-			throws AlgebricksException {
-		return MurmurHash3BinaryHashFunctionFamily.INSTANCE;
-	}
+    @Override
+    public IBinaryHashFunctionFamily getBinaryHashFunctionFamily(Object type) throws AlgebricksException {
+        return MurmurHash3BinaryHashFunctionFamily.INSTANCE;
+    }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPredicateEvaluatorFactoryProvider.java b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPredicateEvaluatorFactoryProvider.java
index f4fa74e..7facab3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPredicateEvaluatorFactoryProvider.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/formats/nontagged/AqlPredicateEvaluatorFactoryProvider.java
@@ -26,51 +26,53 @@
 Provides PredicateEvaluator for equi-join cases to properly take care of NULL fields, being compared with each other.
 If any of the join keys, from either side, is NULL, record should not pass equi-join condition.
 */
-public class AqlPredicateEvaluatorFactoryProvider implements IPredicateEvaluatorFactoryProvider{
-	
-	private static final long serialVersionUID = 1L;
-	public static final AqlPredicateEvaluatorFactoryProvider INSTANCE = new AqlPredicateEvaluatorFactoryProvider();
-	
-	@Override
-	public IPredicateEvaluatorFactory getPredicateEvaluatorFactory(final int[] keys0, final int[] keys1) {
-		
-		return new IPredicateEvaluatorFactory() {
-			private static final long serialVersionUID = 1L;
-			@Override
-			public IPredicateEvaluator createPredicateEvaluator() {
-				return new IPredicateEvaluator() {
-					
-					@Override
-					public boolean evaluate(IFrameTupleAccessor fta0, int tupId0,
-							IFrameTupleAccessor fta1, int tupId1) {
-						
-						int tStart0 = fta0.getTupleStartOffset(tupId0);
-				        int fStartOffset0 = fta0.getFieldSlotsLength() + tStart0;
-						
-						for(int k0 : keys0){
-							int fieldStartIx = fta0.getFieldStartOffset(tupId0, k0);
-							ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(fta0.getBuffer().array()[fieldStartIx + fStartOffset0]);
-							if(typeTag == ATypeTag.NULL){
-								return false;
-							}
-						}
-						
-						int tStart1 = fta1.getTupleStartOffset(tupId1);
-				        int fStartOffset1 = fta1.getFieldSlotsLength() + tStart1;
-				        
-						for(int k1 : keys1){
-							int fieldStartIx = fta1.getFieldStartOffset(tupId1, k1);
-							ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(fta1.getBuffer().array()[fieldStartIx + fStartOffset1]);
-							if(typeTag == ATypeTag.NULL){
-								return false;
-							}
-						}
-						
-						return true;	//none of the fields (from both sides) is NULL
-					}
-				};
-			}
-		};
-	}
+public class AqlPredicateEvaluatorFactoryProvider implements IPredicateEvaluatorFactoryProvider {
+
+    private static final long serialVersionUID = 1L;
+    public static final AqlPredicateEvaluatorFactoryProvider INSTANCE = new AqlPredicateEvaluatorFactoryProvider();
+
+    @Override
+    public IPredicateEvaluatorFactory getPredicateEvaluatorFactory(final int[] keys0, final int[] keys1) {
+
+        return new IPredicateEvaluatorFactory() {
+            private static final long serialVersionUID = 1L;
+
+            @Override
+            public IPredicateEvaluator createPredicateEvaluator() {
+                return new IPredicateEvaluator() {
+
+                    @Override
+                    public boolean evaluate(IFrameTupleAccessor fta0, int tupId0, IFrameTupleAccessor fta1, int tupId1) {
+
+                        int tStart0 = fta0.getTupleStartOffset(tupId0);
+                        int fStartOffset0 = fta0.getFieldSlotsLength() + tStart0;
+
+                        for (int k0 : keys0) {
+                            int fieldStartIx = fta0.getFieldStartOffset(tupId0, k0);
+                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(fta0.getBuffer()
+                                    .array()[fieldStartIx + fStartOffset0]);
+                            if (typeTag == ATypeTag.NULL) {
+                                return false;
+                            }
+                        }
+
+                        int tStart1 = fta1.getTupleStartOffset(tupId1);
+                        int fStartOffset1 = fta1.getFieldSlotsLength() + tStart1;
+
+                        for (int k1 : keys1) {
+                            int fieldStartIx = fta1.getFieldStartOffset(tupId1, k1);
+                            ATypeTag typeTag = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(fta1.getBuffer()
+                                    .array()[fieldStartIx + fStartOffset1]);
+                            if (typeTag == ATypeTag.NULL) {
+                                return false;
+                            }
+                        }
+
+                        return true; //none of the fields (from both sides) is NULL
+                    }
+                };
+            }
+        };
+    }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java
index a7cebb5..86308e1 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/ADouble.java
@@ -12,73 +12,73 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.om.base;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.visitors.IOMVisitor;
-
-public class ADouble implements IAObject {
-
-    protected double value;
-
-    public ADouble(double value) {
-        super();
-        this.value = value;
-    }
-
-    public double getDoubleValue() {
-        return value;
-    }
-
-    @Override
-    public IAType getType() {
-        return BuiltinType.ADOUBLE;
-    }
-
-    @Override
-    public String toString() {
-        return "ADouble: {" + value + "}";
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof ADouble))
-            return false;
-        return value == (((ADouble) obj).getDoubleValue());
-    }
-
-    @Override
-    public int hashCode() {
-        long bits = Double.doubleToLongBits(value);
-        return (int) (bits ^ (bits >>> 32));
-    }
-
-    @Override
-    public void accept(IOMVisitor visitor) throws AsterixException {
-        visitor.visitADouble(this);
-    }
-
-    @Override
-    public boolean deepEqual(IAObject obj) {
-        return equals(obj);
-    }
-
-    @Override
-    public int hash() {
-        return hashCode();
-    }
-
-    @Override
-    public JSONObject toJSON() throws JSONException {
-        JSONObject json = new JSONObject();
-
-        json.put("ADouble", value);
-
-        return json;
-    }
-}
+package edu.uci.ics.asterix.om.base;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.visitors.IOMVisitor;
+
+public class ADouble implements IAObject {
+
+    protected double value;
+
+    public ADouble(double value) {
+        super();
+        this.value = value;
+    }
+
+    public double getDoubleValue() {
+        return value;
+    }
+
+    @Override
+    public IAType getType() {
+        return BuiltinType.ADOUBLE;
+    }
+
+    @Override
+    public String toString() {
+        return "ADouble: {" + value + "}";
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof ADouble))
+            return false;
+        return value == (((ADouble) obj).getDoubleValue());
+    }
+
+    @Override
+    public int hashCode() {
+        long bits = Double.doubleToLongBits(value);
+        return (int) (bits ^ (bits >>> 32));
+    }
+
+    @Override
+    public void accept(IOMVisitor visitor) throws AsterixException {
+        visitor.visitADouble(this);
+    }
+
+    @Override
+    public boolean deepEqual(IAObject obj) {
+        return equals(obj);
+    }
+
+    @Override
+    public int hash() {
+        return hashCode();
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("ADouble", value);
+
+        return json;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java
index dc3d0b5..c1a7543 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AInt32.java
@@ -12,88 +12,88 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.om.base;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.visitors.IOMVisitor;
-
-public class AInt32 implements IAObject {
-
-    protected int value;
-
-    public AInt32(int value) {
-        super();
-        this.value = value;
-    }
-
-    public AInt32(byte[] bytes, int offset, int length) {
-        value = valueFromBytes(bytes, offset, length);
-    }
-
-    public Integer getIntegerValue() {
-        return value;
-    }
-
-    @Override
-    public IAType getType() {
-        return BuiltinType.AINT32;
-    }
-
-    @Override
-    public String toString() {
-        return "AInt32: {" + value + "}";
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof AInt32)) {
-            return false;
-        } else {
-            return value == (((AInt32) obj).getIntegerValue());
-        }
-    }
-
-    @Override
-    public int hashCode() {
-        return value;
-    }
-
-    private static Integer valueFromBytes(byte[] bytes, int offset, int length) {
-        return ((bytes[offset] & 0xff) << 24) + ((bytes[offset + 1] & 0xff) << 16) + ((bytes[offset + 2] & 0xff) << 8)
-                + ((bytes[offset + 3] & 0xff) << 0);
-    }
-
-    public byte[] toBytes() {
-        return new byte[] { (byte) (value >>> 24), (byte) (value >> 16 & 0xff), (byte) (value >> 8 & 0xff),
-                (byte) (value & 0xff) };
-    }
-
-    @Override
-    public void accept(IOMVisitor visitor) throws AsterixException {
-        visitor.visitAInt32(this);
-    }
-
-    @Override
-    public boolean deepEqual(IAObject obj) {
-        return equals(obj);
-    }
-
-    @Override
-    public int hash() {
-        return hashCode();
-    }
-
-    @Override
-    public JSONObject toJSON() throws JSONException {
-        JSONObject json = new JSONObject();
-
-        json.put("AInt32", value);
-
-        return json;
-    }
-}
+package edu.uci.ics.asterix.om.base;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.visitors.IOMVisitor;
+
+public class AInt32 implements IAObject {
+
+    protected int value;
+
+    public AInt32(int value) {
+        super();
+        this.value = value;
+    }
+
+    public AInt32(byte[] bytes, int offset, int length) {
+        value = valueFromBytes(bytes, offset, length);
+    }
+
+    public Integer getIntegerValue() {
+        return value;
+    }
+
+    @Override
+    public IAType getType() {
+        return BuiltinType.AINT32;
+    }
+
+    @Override
+    public String toString() {
+        return "AInt32: {" + value + "}";
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof AInt32)) {
+            return false;
+        } else {
+            return value == (((AInt32) obj).getIntegerValue());
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        return value;
+    }
+
+    private static Integer valueFromBytes(byte[] bytes, int offset, int length) {
+        return ((bytes[offset] & 0xff) << 24) + ((bytes[offset + 1] & 0xff) << 16) + ((bytes[offset + 2] & 0xff) << 8)
+                + ((bytes[offset + 3] & 0xff) << 0);
+    }
+
+    public byte[] toBytes() {
+        return new byte[] { (byte) (value >>> 24), (byte) (value >> 16 & 0xff), (byte) (value >> 8 & 0xff),
+                (byte) (value & 0xff) };
+    }
+
+    @Override
+    public void accept(IOMVisitor visitor) throws AsterixException {
+        visitor.visitAInt32(this);
+    }
+
+    @Override
+    public boolean deepEqual(IAObject obj) {
+        return equals(obj);
+    }
+
+    @Override
+    public int hash() {
+        return hashCode();
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AInt32", value);
+
+        return json;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
index 7cb490c..93c0b22 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AMutableUnorderedList.java
@@ -20,20 +20,19 @@
 
 public final class AMutableUnorderedList extends AUnorderedList {
 
-	public AMutableUnorderedList(AUnorderedListType type) {
-		super(type);
-	}
+    public AMutableUnorderedList(AUnorderedListType type) {
+        super(type);
+    }
 
-	public AMutableUnorderedList(AUnorderedListType type,
-			ArrayList<IAObject> sequence) {
-		super(type, sequence);
-	}
+    public AMutableUnorderedList(AUnorderedListType type, ArrayList<IAObject> sequence) {
+        super(type, sequence);
+    }
 
-	public void add(IAObject obj) {
-		values.add(obj);
-	}
+    public void add(IAObject obj) {
+        values.add(obj);
+    }
 
-	public void clear() {
-		values.clear();
-	}
+    public void clear() {
+        values.clear();
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java
index a758ee6..c6b8af4 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/AString.java
@@ -12,71 +12,71 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.om.base;
-
-import org.json.JSONException;
-import org.json.JSONObject;
-
-import edu.uci.ics.asterix.common.exceptions.AsterixException;
-import edu.uci.ics.asterix.om.types.BuiltinType;
-import edu.uci.ics.asterix.om.types.IAType;
-import edu.uci.ics.asterix.om.visitors.IOMVisitor;
-
-public class AString implements IAObject {
-
-    protected String value;
-
-    public AString(String value) {
-        this.value = value;
-    }
-
-    public String getStringValue() {
-        return value;
-    }
-
-    @Override
-    public IAType getType() {
-        return BuiltinType.ASTRING;
-    }
-
-    @Override
-    public String toString() {
-        return "AString: {" + value + "}";
-    }
-
-    @Override
-    public boolean equals(Object obj) {
-        if (!(obj instanceof AString))
-            return false;
-        return value.equals(((AString) obj).getStringValue());
-    }
-
-    @Override
-    public int hashCode() {
-        return value.hashCode();
-    }
-
-    @Override
-    public void accept(IOMVisitor visitor) throws AsterixException {
-        visitor.visitAString(this);
-    }
-
-    @Override
-    public boolean deepEqual(IAObject obj) {
-        return equals(obj);
-    }
-
-    @Override
-    public int hash() {
-        return hashCode();
-    }
-
-    @Override
-    public JSONObject toJSON() throws JSONException {
-        JSONObject json = new JSONObject();
-
-        json.put("AString", value);
-
-        return json;
-    }
-}
+package edu.uci.ics.asterix.om.base;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import edu.uci.ics.asterix.common.exceptions.AsterixException;
+import edu.uci.ics.asterix.om.types.BuiltinType;
+import edu.uci.ics.asterix.om.types.IAType;
+import edu.uci.ics.asterix.om.visitors.IOMVisitor;
+
+public class AString implements IAObject {
+
+    protected String value;
+
+    public AString(String value) {
+        this.value = value;
+    }
+
+    public String getStringValue() {
+        return value;
+    }
+
+    @Override
+    public IAType getType() {
+        return BuiltinType.ASTRING;
+    }
+
+    @Override
+    public String toString() {
+        return "AString: {" + value + "}";
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (!(obj instanceof AString))
+            return false;
+        return value.equals(((AString) obj).getStringValue());
+    }
+
+    @Override
+    public int hashCode() {
+        return value.hashCode();
+    }
+
+    @Override
+    public void accept(IOMVisitor visitor) throws AsterixException {
+        visitor.visitAString(this);
+    }
+
+    @Override
+    public boolean deepEqual(IAObject obj) {
+        return equals(obj);
+    }
+
+    @Override
+    public int hash() {
+        return hashCode();
+    }
+
+    @Override
+    public JSONObject toJSON() throws JSONException {
+        JSONObject json = new JSONObject();
+
+        json.put("AString", value);
+
+        return json;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java
index 61482ff..97edb5c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/base/temporal/ADateParserFactory.java
@@ -60,8 +60,7 @@
      * @return
      * @throws Exception
      */
-    public static long parseDatePart(String dateString, int start, int length)
-            throws HyracksDataException {
+    public static long parseDatePart(String dateString, int start, int length) throws HyracksDataException {
 
         int offset = 0;
 
@@ -139,14 +138,14 @@
         if (length > offset) {
             throw new HyracksDataException("Too many chars for a date only value");
         }
-        
-        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)){
+
+        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)) {
             throw new HyracksDataException(dateErrorMessage);
         }
-        
+
         return GregorianCalendarSystem.getInstance().getChronon(year, month, day, 0, 0, 0, 0, 0);
     }
-    
+
     /**
      * A copy-and-paste of {@link #parseDatePart(String, int, int)} but for a char array, in order
      * to avoid object creation.
@@ -157,8 +156,7 @@
      * @return
      * @throws HyracksDataException
      */
-    public static long parseDatePart(char[] dateString, int start, int length)
-            throws HyracksDataException {
+    public static long parseDatePart(char[] dateString, int start, int length) throws HyracksDataException {
 
         int offset = 0;
 
@@ -236,11 +234,11 @@
         if (length > offset) {
             throw new HyracksDataException("Too many chars for a date only value");
         }
-        
-        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)){
+
+        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)) {
             throw new HyracksDataException(dateErrorMessage);
         }
-        
+
         return GregorianCalendarSystem.getInstance().getChronon(year, month, day, 0, 0, 0, 0, 0);
     }
 
@@ -254,8 +252,7 @@
      * @return
      * @throws HyracksDataException
      */
-    public static long parseDatePart(byte[] dateString, int start, int length)
-            throws HyracksDataException {
+    public static long parseDatePart(byte[] dateString, int start, int length) throws HyracksDataException {
 
         int offset = 0;
 
@@ -333,11 +330,11 @@
         if (length > offset) {
             throw new HyracksDataException("Too many chars for a date only value");
         }
-        
-        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)){
+
+        if (!GregorianCalendarSystem.getInstance().validate(year, month, day, 0, 0, 0, 0)) {
             throw new HyracksDataException(dateErrorMessage);
         }
-        
+
         return GregorianCalendarSystem.getInstance().getChronon(year, month, day, 0, 0, 0, 0, 0);
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
index 8bc0286..d795382 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixBuiltinFunctions.java
@@ -1135,7 +1135,7 @@
     public static boolean isSpatialFilterFunction(FunctionIdentifier fi) {
         return spatialFilterFunctions.get(getAsterixFunctionInfo(fi)) != null;
     }
-    
+
     static {
         similarityFunctions.add(getAsterixFunctionInfo(SIMILARITY_JACCARD));
         similarityFunctions.add(getAsterixFunctionInfo(SIMILARITY_JACCARD_CHECK));
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
index 0f08787..6de1006 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixExternalFunctionInfo.java
@@ -29,17 +29,17 @@
     private final FunctionKind kind;
     private final IAType returnType;
 
-    public AsterixExternalFunctionInfo(){
+    public AsterixExternalFunctionInfo() {
         super();
         rtc = null;
-        argumentTypes= null;
+        argumentTypes = null;
         body = null;
-        language=null;
+        language = null;
         kind = null;
         returnType = null;
-                
+
     }
-    
+
     public AsterixExternalFunctionInfo(String namespace, AsterixFunction asterixFunction, FunctionKind kind,
             List<IAType> argumentTypes, IAType returnType, IResultTypeComputer rtc, String body, String language) {
         super(namespace, asterixFunction);
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
index b4c47cd..02debfa 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/AsterixFunctionIdentifier.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.om.functions;
 
-
 public class AsterixFunctionIdentifier {
 
     private final String dataverse;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
index 1eb4174..c824578 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/FunctionInfoRepository.java
@@ -47,4 +47,3 @@
         functionMap.put(functionSignature, new AsterixFunctionInfo(fid));
     }
 }
-
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
index a2bfc13..47e9957 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IExternalFunctionInfo.java
@@ -25,7 +25,7 @@
 public interface IExternalFunctionInfo extends IFunctionInfo, Serializable {
 
     public IResultTypeComputer getResultTypeComputer();
-    
+
     public IAType getReturnType();
 
     public String getFunctionBody();
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java
index 2cf7288..a94f46b 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/functions/IFunctionDescriptorFactory.java
@@ -19,6 +19,7 @@
 
     /**
      * the artifact registered in function manager
+     * 
      * @return a new IFunctionDescriptor instance
      */
     public IFunctionDescriptor createFunctionDescriptor();
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java
index 77b4d38..d08537e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/pointables/ARecordPointable.java
@@ -39,7 +39,6 @@
  * This class interprets the binary data representation of a record. One can
  * call getFieldNames, getFieldTypeTags and getFieldValues to get pointable
  * objects for field names, field type tags, and field values.
- * 
  */
 public class ARecordPointable extends AbstractVisitablePointable {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java
index e3f0c0f..bd5ed7c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ADoubleTypeComputer.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AFloatTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AFloatTypeComputer.java
index cd0f8b1..3ff2635 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AFloatTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AFloatTypeComputer.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java
index 0872b80..88b75f5 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/ARectangleTypeComputer.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
index fe29823..b17d518 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractBinaryStringTypeComputer.java
@@ -24,17 +24,16 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
 /**
- *
  * @author Xiaoyu Ma
  */
 abstract public class AbstractBinaryStringTypeComputer implements IResultTypeComputer {
-    
+
     @Override
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().size() < 2)
-            throw new AlgebricksException("Wrong Argument Number.");        
+        if (fce.getArguments().size() < 2)
+            throw new AlgebricksException("Wrong Argument Number.");
         ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
         ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
         IAType t0, t1;
@@ -44,14 +43,13 @@
         } catch (AlgebricksException e) {
             throw new AlgebricksException(e);
         }
-        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING) ||
-            (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING)) {
+        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING)
+                || (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING)) {
             throw new AlgebricksException("Expects String Type.");
-        }      
+        }
 
         return getResultType(t0, t1);
-    }    
-    
-    
+    }
+
     public abstract IAType getResultType(IAType t0, IAType t1);
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
index 751b082..3f0ac2a 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractQuadStringTypeComputer.java
@@ -25,40 +25,38 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
 /**
- *
  * @author Xiaoyu Ma
  */
 public abstract class AbstractQuadStringTypeComputer implements IResultTypeComputer {
-    
+
     @Override
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().size() < 4)
-            throw new AlgebricksException("Wrong Argument Number.");        
+        if (fce.getArguments().size() < 4)
+            throw new AlgebricksException("Wrong Argument Number.");
         ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
         ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
-        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();  
-        ILogicalExpression arg3 = fce.getArguments().get(3).getValue();                
+        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();
+        ILogicalExpression arg3 = fce.getArguments().get(3).getValue();
         IAType t0, t1, t2, t3;
         try {
             t0 = (IAType) env.getType(arg0);
             t1 = (IAType) env.getType(arg1);
-            t2 = (IAType) env.getType(arg2);    
-            t3 = (IAType) env.getType(arg3);              
+            t2 = (IAType) env.getType(arg2);
+            t3 = (IAType) env.getType(arg3);
         } catch (AlgebricksException e) {
             throw new AlgebricksException(e);
         }
-        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING) || 
-            (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING) ||
-            (t2.getTypeTag() != ATypeTag.NULL && t2.getTypeTag() != ATypeTag.STRING) ||
-            (t3.getTypeTag() != ATypeTag.NULL && t3.getTypeTag() != ATypeTag.STRING)) {
+        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING)
+                || (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING)
+                || (t2.getTypeTag() != ATypeTag.NULL && t2.getTypeTag() != ATypeTag.STRING)
+                || (t3.getTypeTag() != ATypeTag.NULL && t3.getTypeTag() != ATypeTag.STRING)) {
             throw new NotImplementedException("Expects String Type.");
         }
 
         return getResultType(t0, t1, t2, t3);
-    }    
-    
-    
-    public abstract IAType getResultType(IAType t0, IAType t1, IAType t2, IAType t3);    
+    }
+
+    public abstract IAType getResultType(IAType t0, IAType t1, IAType t2, IAType t3);
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
index 66b707f..cdf48df 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/AbstractTripleStringTypeComputer.java
@@ -24,36 +24,35 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
 /**
- *
  * @author Xiaoyu Ma
  */
 public abstract class AbstractTripleStringTypeComputer implements IResultTypeComputer {
-    
+
     @Override
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().size() < 3)
-            throw new AlgebricksException("Wrong Argument Number.");            
+        if (fce.getArguments().size() < 3)
+            throw new AlgebricksException("Wrong Argument Number.");
         ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
         ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
-        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();        
+        ILogicalExpression arg2 = fce.getArguments().get(2).getValue();
         IAType t0, t1, t2;
         try {
             t0 = (IAType) env.getType(arg0);
             t1 = (IAType) env.getType(arg1);
-            t2 = (IAType) env.getType(arg2);            
+            t2 = (IAType) env.getType(arg2);
         } catch (AlgebricksException e) {
             throw new AlgebricksException(e);
         }
-        if ((t0.getTypeTag() != ATypeTag.NULL   && t0.getTypeTag() != ATypeTag.STRING) || (t1.getTypeTag() != ATypeTag.NULL &&
-            t1.getTypeTag() != ATypeTag.STRING) || (t2.getTypeTag() != ATypeTag.NULL && t2.getTypeTag() != ATypeTag.STRING)) {
+        if ((t0.getTypeTag() != ATypeTag.NULL && t0.getTypeTag() != ATypeTag.STRING)
+                || (t1.getTypeTag() != ATypeTag.NULL && t1.getTypeTag() != ATypeTag.STRING)
+                || (t2.getTypeTag() != ATypeTag.NULL && t2.getTypeTag() != ATypeTag.STRING)) {
             throw new AlgebricksException("Expects String Type.");
         }
 
         return getResultType(t0, t1, t2);
-    }    
-    
-    
+    }
+
     public abstract IAType getResultType(IAType t0, IAType t1, IAType t2);
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java
index f44a416..5e7d6e0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryBooleanOrNullFunctionTypeComputer.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.ATypeTag;
 import edu.uci.ics.asterix.om.types.AUnionType;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java
index 5051ee5..3a9fd08 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringBoolOrNullTypeComputer.java
@@ -20,18 +20,19 @@
 import edu.uci.ics.asterix.om.types.TypeHelper;
 
 /**
- *
  * @author Xiaoyu Ma
  */
 public class BinaryStringBoolOrNullTypeComputer extends AbstractBinaryStringTypeComputer {
     public static final BinaryStringBoolOrNullTypeComputer INSTANCE = new BinaryStringBoolOrNullTypeComputer();
-    private BinaryStringBoolOrNullTypeComputer() {}    
-    
+
+    private BinaryStringBoolOrNullTypeComputer() {
+    }
+
     @Override
     public IAType getResultType(IAType t0, IAType t1) {
         if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1)) {
             return AUnionType.createNullableType(BuiltinType.ABOOLEAN);
-        }        	
+        }
         return BuiltinType.ABOOLEAN;
-    }    
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java
index 3a301b2..da91ee3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/BinaryStringStringOrNullTypeComputer.java
@@ -20,20 +20,21 @@
 import edu.uci.ics.asterix.om.types.TypeHelper;
 
 /**
- *
  * @author Xiaoyu Ma
  */
 public class BinaryStringStringOrNullTypeComputer extends AbstractBinaryStringTypeComputer {
-    
+
     public static final BinaryStringStringOrNullTypeComputer INSTANCE = new BinaryStringStringOrNullTypeComputer();
-    private BinaryStringStringOrNullTypeComputer() {}
+
+    private BinaryStringStringOrNullTypeComputer() {
+    }
 
     @Override
     public IAType getResultType(IAType t0, IAType t1) {
         if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1)) {
             return AUnionType.createNullableType(BuiltinType.ASTRING);
-        }      	
+        }
         return BuiltinType.ASTRING;
     }
-    
+
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java
index 154ce65..0bbf8a3 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericAddSubMulDivTypeComputer.java
@@ -280,7 +280,7 @@
                 break;
             }
             case DURATION: {
-                switch(tag2){
+                switch (tag2) {
                     case DATE:
                         unionList.add(BuiltinType.ADATE);
                         break;
@@ -297,7 +297,7 @@
                 break;
             }
             case YEARMONTHDURATION: {
-                switch(tag2){
+                switch (tag2) {
                     case DATE:
                         unionList.add(BuiltinType.ADATE);
                         break;
@@ -317,7 +317,7 @@
                 break;
             }
             case DAYTIMEDURATION: {
-                switch(tag2){
+                switch (tag2) {
                     case DATE:
                         unionList.add(BuiltinType.ADATE);
                         break;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
index 8af3ef2..79b0bce 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericRoundHalfToEven2TypeComputer.java
@@ -37,8 +37,7 @@
 
 public class NonTaggedNumericRoundHalfToEven2TypeComputer implements IResultTypeComputer {
 
-    public static final NonTaggedNumericRoundHalfToEven2TypeComputer INSTANCE =
-            new NonTaggedNumericRoundHalfToEven2TypeComputer();
+    public static final NonTaggedNumericRoundHalfToEven2TypeComputer INSTANCE = new NonTaggedNumericRoundHalfToEven2TypeComputer();
 
     private NonTaggedNumericRoundHalfToEven2TypeComputer() {
     }
@@ -47,17 +46,17 @@
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().size() < 2)
-        	throw new AlgebricksException("Argument number invalid.");
-        
+        if (fce.getArguments().size() < 2)
+            throw new AlgebricksException("Argument number invalid.");
+
         ILogicalExpression arg1 = fce.getArguments().get(0).getValue();
         ILogicalExpression arg2 = fce.getArguments().get(1).getValue();
-        
+
         IAType t1 = (IAType) env.getType(arg1);
         IAType t2 = (IAType) env.getType(arg2);
-        
+
         List<IAType> unionList = new ArrayList<IAType>();
-        unionList.add(BuiltinType.ANULL);        
+        unionList.add(BuiltinType.ANULL);
 
         ATypeTag tag1, tag2;
         if (t1.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t1))
@@ -71,33 +70,33 @@
                     .getTypeTag();
         else
             tag2 = t2.getTypeTag();
-        
-        switch(tag2) {
-	        case INT8:
-	        case INT16:
-	        case INT32:
-	        case INT64:
-	            break;
-	        default:
-	            throw new AlgebricksException("Argument $precision cannot be type " + t2.getTypeName());
-        }        
-        
+
+        switch (tag2) {
+            case INT8:
+            case INT16:
+            case INT32:
+            case INT64:
+                break;
+            default:
+                throw new AlgebricksException("Argument $precision cannot be type " + t2.getTypeName());
+        }
+
         switch (tag1) {
             case INT8:
                 unionList.add(BuiltinType.AINT8);
-                break;                
+                break;
             case INT16:
                 unionList.add(BuiltinType.AINT16);
-                break;                 
+                break;
             case INT32:
                 unionList.add(BuiltinType.AINT32);
-                break;                 
+                break;
             case INT64:
                 unionList.add(BuiltinType.AINT64);
-                break;                 
+                break;
             case FLOAT:
                 unionList.add(BuiltinType.AFLOAT);
-                break;                 
+                break;
             case DOUBLE:
                 unionList.add(BuiltinType.ADOUBLE);
                 break;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
index 91e3ad8..b4d9f4c 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NonTaggedNumericUnaryFunctionTypeComputer.java
@@ -38,8 +38,7 @@
 public class NonTaggedNumericUnaryFunctionTypeComputer implements IResultTypeComputer {
 
     private static final String errMsg = "Arithmetic operations are not implemented for ";
-    public static final NonTaggedNumericUnaryFunctionTypeComputer INSTANCE =
-            new NonTaggedNumericUnaryFunctionTypeComputer();
+    public static final NonTaggedNumericUnaryFunctionTypeComputer INSTANCE = new NonTaggedNumericUnaryFunctionTypeComputer();
 
     private NonTaggedNumericUnaryFunctionTypeComputer() {
     }
@@ -48,37 +47,36 @@
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().isEmpty())
+        if (fce.getArguments().isEmpty())
             throw new AlgebricksException("Wrong Argument Number.");
-        
+
         ILogicalExpression arg1 = fce.getArguments().get(0).getValue();
 
         IAType t = (IAType) env.getType(arg1);
         ATypeTag tag = t.getTypeTag();
 
-        if (tag == ATypeTag.UNION
-                && NonTaggedFormatUtil.isOptionalField((AUnionType) env.getType(arg1))) {
+        if (tag == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) env.getType(arg1))) {
             return (IAType) env.getType(arg1);
         }
-        
+
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
         switch (tag) {
             case INT8:
                 unionList.add(BuiltinType.AINT8);
-                break;                
+                break;
             case INT16:
                 unionList.add(BuiltinType.AINT16);
-                break;                 
+                break;
             case INT32:
                 unionList.add(BuiltinType.AINT32);
-                break;                 
+                break;
             case INT64:
                 unionList.add(BuiltinType.AINT64);
-                break;                 
+                break;
             case FLOAT:
                 unionList.add(BuiltinType.AFLOAT);
-                break;                 
+                break;
             case DOUBLE:
                 unionList.add(BuiltinType.ADOUBLE);
                 break;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java
index 26c61b2..01499f0 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/NumericAddSubMulTypeDescriptor.java
@@ -14,7 +14,6 @@
  */
 package edu.uci.ics.asterix.om.typecomputer.impl;
 
-
 import edu.uci.ics.asterix.om.typecomputer.base.IResultTypeComputer;
 import edu.uci.ics.asterix.om.types.BuiltinType;
 import edu.uci.ics.asterix.om.types.IAType;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java
index c504671..4b77dc6 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/QuadStringStringOrNullTypeComputer.java
@@ -20,20 +20,21 @@
 import edu.uci.ics.asterix.om.types.TypeHelper;
 
 /**
- *
  * @author Xiaoyu Ma
  */
-public class QuadStringStringOrNullTypeComputer  extends AbstractQuadStringTypeComputer {
+public class QuadStringStringOrNullTypeComputer extends AbstractQuadStringTypeComputer {
     public static final QuadStringStringOrNullTypeComputer INSTANCE = new QuadStringStringOrNullTypeComputer();
-    private QuadStringStringOrNullTypeComputer() {}
+
+    private QuadStringStringOrNullTypeComputer() {
+    }
 
     @Override
     public IAType getResultType(IAType t0, IAType t1, IAType t2, IAType t3) {
-        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || 
-        	TypeHelper.canBeNull(t2) || TypeHelper.canBeNull(t3)) {
+        if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || TypeHelper.canBeNull(t2)
+                || TypeHelper.canBeNull(t3)) {
             return AUnionType.createNullableType(BuiltinType.ASTRING);
-        }      	
+        }
         return BuiltinType.ASTRING;
     }
-    
+
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
index ba622fb..584708e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/Substring2TypeComputer.java
@@ -26,52 +26,47 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
-
 public class Substring2TypeComputer implements IResultTypeComputer {
     public static final Substring2TypeComputer INSTANCE = new Substring2TypeComputer();
-    
-    
+
     @Override
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().size() < 2)
-            throw new AlgebricksException("Wrong Argument Number.");            
+        if (fce.getArguments().size() < 2)
+            throw new AlgebricksException("Wrong Argument Number.");
         ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
-        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();       
+        ILogicalExpression arg1 = fce.getArguments().get(1).getValue();
         IAType t0, t1;
         try {
             t0 = (IAType) env.getType(arg0);
-            t1 = (IAType) env.getType(arg1);                  
+            t1 = (IAType) env.getType(arg1);
         } catch (AlgebricksException e) {
             throw new AlgebricksException(e);
         }
-        
+
         ATypeTag tag0, tag1;
         if (t0.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t0))
             tag0 = ((AUnionType) t0).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
                     .getTypeTag();
         else
             tag0 = t0.getTypeTag();
-        
+
         if (t1.getTypeTag() == ATypeTag.UNION && NonTaggedFormatUtil.isOptionalField((AUnionType) t1))
             tag1 = ((AUnionType) t1).getUnionList().get(NonTaggedFormatUtil.OPTIONAL_TYPE_INDEX_IN_UNION_LIST)
                     .getTypeTag();
         else
-            tag1 = t1.getTypeTag();        
-        
-        if(tag0 != ATypeTag.NULL && tag0 != ATypeTag.STRING) {
+            tag1 = t1.getTypeTag();
+
+        if (tag0 != ATypeTag.NULL && tag0 != ATypeTag.STRING) {
             throw new AlgebricksException("First argument should be String Type.");
         }
-        
-        if(tag1 != ATypeTag.NULL && 
-           tag1 != ATypeTag.INT8 && 
-           tag1 != ATypeTag.INT16 && 
-           tag1 != ATypeTag.INT32 && 
-           tag1 != ATypeTag.INT64) {
+
+        if (tag1 != ATypeTag.NULL && tag1 != ATypeTag.INT8 && tag1 != ATypeTag.INT16 && tag1 != ATypeTag.INT32
+                && tag1 != ATypeTag.INT64) {
             throw new AlgebricksException("Second argument should be integer Type.");
         }
 
         return BuiltinType.ASTRING;
-    }   
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java
index 3ad0cee..a666afb7 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringBoolOrNullTypeComputer.java
@@ -20,18 +20,20 @@
 import edu.uci.ics.asterix.om.types.TypeHelper;
 
 /**
- *
  * @author Xiaoyu Ma
  */
-public class TripleStringBoolOrNullTypeComputer  extends AbstractTripleStringTypeComputer {
+public class TripleStringBoolOrNullTypeComputer extends AbstractTripleStringTypeComputer {
     public static final TripleStringBoolOrNullTypeComputer INSTANCE = new TripleStringBoolOrNullTypeComputer();
-    private TripleStringBoolOrNullTypeComputer() {}    
+
+    private TripleStringBoolOrNullTypeComputer() {
+    }
+
     @Override
     public IAType getResultType(IAType t0, IAType t1, IAType t2) {
         if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || TypeHelper.canBeNull(t2)) {
             return AUnionType.createNullableType(BuiltinType.ABOOLEAN);
-        }    	
+        }
         return BuiltinType.ABOOLEAN;
     }
-    
+
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java
index 5031287..a02ff83 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/TripleStringStringOrNullTypeComputer.java
@@ -20,18 +20,19 @@
 import edu.uci.ics.asterix.om.types.TypeHelper;
 
 /**
- *
  * @author Xiaoyu Ma
  */
-public class TripleStringStringOrNullTypeComputer  extends AbstractTripleStringTypeComputer {
+public class TripleStringStringOrNullTypeComputer extends AbstractTripleStringTypeComputer {
     public static final TripleStringStringOrNullTypeComputer INSTANCE = new TripleStringStringOrNullTypeComputer();
-    private TripleStringStringOrNullTypeComputer() {}
+
+    private TripleStringStringOrNullTypeComputer() {
+    }
 
     @Override
     public IAType getResultType(IAType t0, IAType t1, IAType t2) {
         if (TypeHelper.canBeNull(t0) || TypeHelper.canBeNull(t1) || TypeHelper.canBeNull(t2)) {
             return AUnionType.createNullableType(BuiltinType.ASTRING);
-        }      	
+        }
         return BuiltinType.ASTRING;
-    } 
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
index 1155485..1770685 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringInt32OrNullTypeComputer.java
@@ -61,7 +61,7 @@
 
         List<IAType> unionList = new ArrayList<IAType>();
         unionList.add(BuiltinType.ANULL);
-        if (t0.getTypeTag() == ATypeTag.NULL) { 
+        if (t0.getTypeTag() == ATypeTag.NULL) {
             return BuiltinType.ANULL;
         }
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
index dadf330..e319c7d 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/typecomputer/impl/UnaryStringOrNullTypeComputer.java
@@ -26,22 +26,22 @@
 import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.IVariableTypeEnvironment;
 import edu.uci.ics.hyracks.algebricks.core.algebra.metadata.IMetadataProvider;
 
-
 /**
- *
  * @author Xiaoyu Ma
  */
-public class UnaryStringOrNullTypeComputer implements IResultTypeComputer  {   
-    
+public class UnaryStringOrNullTypeComputer implements IResultTypeComputer {
+
     public static final UnaryStringOrNullTypeComputer INSTANCE = new UnaryStringOrNullTypeComputer();
-    private UnaryStringOrNullTypeComputer() {}
-    
+
+    private UnaryStringOrNullTypeComputer() {
+    }
+
     @Override
     public IAType computeType(ILogicalExpression expression, IVariableTypeEnvironment env,
             IMetadataProvider<?, ?> metadataProvider) throws AlgebricksException {
         AbstractFunctionCallExpression fce = (AbstractFunctionCallExpression) expression;
-        if(fce.getArguments().isEmpty())
-            throw new AlgebricksException("Wrong Argument Number.");        
+        if (fce.getArguments().isEmpty())
+            throw new AlgebricksException("Wrong Argument Number.");
         ILogicalExpression arg0 = fce.getArguments().get(0).getValue();
         IAType t0;
         try {
@@ -49,17 +49,17 @@
         } catch (AlgebricksException e) {
             throw new AlgebricksException(e);
         }
-        
+
         if (TypeHelper.canBeNull(t0)) {
             return AUnionType.createNullableType(BuiltinType.ASTRING);
-        }            
-        
+        }
+
         if (t0.getTypeTag() == ATypeTag.NULL)
-        	return BuiltinType.ANULL;
-        
-        if(t0.getTypeTag() == ATypeTag.STRING) 
-        	return BuiltinType.ASTRING;
-        
-        throw new AlgebricksException("Expects String Type.");        
-    }      
+            return BuiltinType.ANULL;
+
+        if (t0.getTypeTag() == ATypeTag.STRING)
+            return BuiltinType.ASTRING;
+
+        throw new AlgebricksException("Expects String Type.");
+    }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java
index 2a54485..21ec140 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AOrderedListType.java
@@ -71,7 +71,7 @@
     }
 
     @Override
-    public JSONObject toJSON() throws JSONException{
+    public JSONObject toJSON() throws JSONException {
         JSONObject type = new JSONObject();
         type.put("type", itemType);
         return type;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java
index 0319c7c..35d95d4 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/ARecordType.java
@@ -336,7 +336,8 @@
                             break;
                         default:
                             throw new AlgebricksException("The field \"" + fieldName + "\" which is of type "
-                                    + fieldType.getTypeTag() + " cannot be indexed using the Length Partitioned N-Gram index.");
+                                    + fieldType.getTypeTag()
+                                    + " cannot be indexed using the Length Partitioned N-Gram index.");
                     }
                     break;
                 case LENGTH_PARTITIONED_WORD_INVIX:
@@ -348,7 +349,8 @@
                             break;
                         default:
                             throw new AlgebricksException("The field \"" + fieldName + "\" which is of type "
-                                    + fieldType.getTypeTag() + " cannot be indexed using the Length Partitioned Keyword index.");
+                                    + fieldType.getTypeTag()
+                                    + " cannot be indexed using the Length Partitioned Keyword index.");
                     }
                     break;
                 case SINGLE_PARTITION_NGRAM_INVIX:
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java
index 2c2b341..ffbc6e6 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AUnorderedListType.java
@@ -71,7 +71,7 @@
     }
 
     @Override
-    public JSONObject toJSON() throws JSONException{
+    public JSONObject toJSON() throws JSONException {
         JSONObject type = new JSONObject();
         type.put("type", itemType);
         return type;
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java
index d2766dd..7d3fe94 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/AbstractComplexType.java
@@ -18,21 +18,21 @@
 
 public abstract class AbstractComplexType implements IAType {
 
-	private static final long serialVersionUID = 1L;
-	protected String typeName;
+    private static final long serialVersionUID = 1L;
+    protected String typeName;
 
-	public AbstractComplexType(String typeName) {
-		this.typeName = typeName;
-	}
+    public AbstractComplexType(String typeName) {
+        this.typeName = typeName;
+    }
 
-	@Override
-	public String getTypeName() {
-		return typeName;
-	}
+    @Override
+    public String getTypeName() {
+        return typeName;
+    }
 
-	@Override
-	public boolean equals(Object object) {
-		return this.deepEqual((IAObject) object);
-	}
+    @Override
+    public boolean equals(Object object) {
+        return this.deepEqual((IAObject) object);
+    }
 
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeHierarchy.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeHierarchy.java
index ba5c2db..053dbb2 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeHierarchy.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/TypeHierarchy.java
@@ -12,29 +12,29 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package edu.uci.ics.asterix.om.types;
-
-import java.util.Hashtable;
-
-/*
- * Author: Guangqiang Li
- * Created on Sep 24, 2009 
- */
-public class TypeHierarchy {
-    private static Hashtable<String, String> parentMap = new Hashtable<String, String>();
-    static {
-        parentMap.put("integer", "decimal");
-        parentMap.put("double", "decimal");
-        parentMap.put("decimal", "numeric");
-    }
-
-    public static boolean isSubType(String sub, String par) {
-        String parent = parentMap.get(sub);
-        if (parent != null)
-            if (parent.equals(par))
-                return true;
-            else
-                return isSubType(parent, par);
-        return false;
-    }
-}
+package edu.uci.ics.asterix.om.types;
+
+import java.util.Hashtable;
+
+/*
+ * Author: Guangqiang Li
+ * Created on Sep 24, 2009 
+ */
+public class TypeHierarchy {
+    private static Hashtable<String, String> parentMap = new Hashtable<String, String>();
+    static {
+        parentMap.put("integer", "decimal");
+        parentMap.put("double", "decimal");
+        parentMap.put("decimal", "numeric");
+    }
+
+    public static boolean isSubType(String sub, String par) {
+        String parent = parentMap.get(sub);
+        if (parent != null)
+            if (parent.equals(par))
+                return true;
+            else
+                return isSubType(parent, par);
+        return false;
+    }
+}
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/AbstractIntegerTypePromoteComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/AbstractIntegerTypePromoteComputer.java
index 12bfaf4..7df6f43 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/AbstractIntegerTypePromoteComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/AbstractIntegerTypePromoteComputer.java
@@ -30,7 +30,7 @@
         }
 
         for (int i = targetTypeLength - 1; i >= 0; i--) {
-            storageForPromotedValue.getDataOutput().writeByte((byte)((num >>> (i * 8)) & 0xFF));
+            storageForPromotedValue.getDataOutput().writeByte((byte) ((num >>> (i * 8)) & 0xFF));
         }
     }
 }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/IntegerToDoubleTypePromoteComputer.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/IntegerToDoubleTypePromoteComputer.java
index 014dc2a..dfd116e 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/IntegerToDoubleTypePromoteComputer.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/types/hierachy/IntegerToDoubleTypePromoteComputer.java
@@ -34,7 +34,7 @@
         storageForPromotedValue.getDataOutput().writeByte(ATypeTag.DOUBLE.serialize());
         long val = 0L;
         for (int i = 0; i < length; i++) {
-            val += ((long)(data[start + i] & 0xff)) << (8 * (length - 1 - i));
+            val += ((long) (data[start + i] & 0xff)) << (8 * (length - 1 - i));
         }
         DoubleSerializerDeserializer.INSTANCE.serialize(Double.valueOf(val), storageForPromotedValue.getDataOutput());
     }
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java
index 795a4a6..00ffa11 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/ResettableByteArrayOutputStream.java
@@ -19,7 +19,6 @@
 /**
  * This class extends ByteArrayAccessibleOutputStream to allow reset to a given
  * size.
- * 
  */
 public class ResettableByteArrayOutputStream extends ByteArrayAccessibleOutputStream {
 
diff --git a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java
index 8014727..8a25cf2 100644
--- a/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java
+++ b/asterix-om/src/main/java/edu/uci/ics/asterix/om/util/container/ListObjectPool.java
@@ -21,7 +21,6 @@
 
 /**
  * Object pool backed by a list.
- * 
  * The argument for creating E instances could be different. This class also
  * considers arguments in object reusing, e.g., it reuses an E instances ONLY
  * when the construction argument is "equal".
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java
index e4d1468..b92c422 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/AbstractAggregateFunctionDynamicDescriptor.java
@@ -17,12 +17,11 @@
 import edu.uci.ics.asterix.common.functions.FunctionDescriptorTag;
 import edu.uci.ics.asterix.om.functions.AbstractFunctionDescriptor;
 
-public abstract class AbstractAggregateFunctionDynamicDescriptor extends AbstractFunctionDescriptor  {
+public abstract class AbstractAggregateFunctionDynamicDescriptor extends AbstractFunctionDescriptor {
     private static final long serialVersionUID = 1L;
 
     public FunctionDescriptorTag getFunctionDescriptorTag() {
         return FunctionDescriptorTag.AGGREGATE;
     }
 
-   
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java
index 9261537..b8733b0 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/base/SingleFieldFrameTupleReference.java
@@ -22,13 +22,13 @@
     private byte[] fieldData;
     private int start;
     private int length;
-    
+
     public void reset(byte[] fieldData, int start, int length) {
         this.fieldData = fieldData;
         this.start = start;
         this.length = length;
     }
-    
+
     @Override
     public int getFieldCount() {
         return 1;
@@ -41,12 +41,12 @@
 
     @Override
     public int getFieldStart(int fIdx) {
-       return start;
+        return start;
     }
 
     @Override
     public int getFieldLength(int fIdx) {
-       return length;
+        return length;
     }
 
     @Override
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java
index a9bd339..bf87f08 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/collections/ListifyAggregateFunctionEvalFactory.java
@@ -40,7 +40,8 @@
     }
 
     @Override
-    public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider) throws AlgebricksException {
+    public ICopyAggregateFunction createAggregateFunction(final IDataOutputProvider provider)
+            throws AlgebricksException {
 
         return new ICopyAggregateFunction() {
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
index c03fe91..231ce34 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateDescriptor.java
@@ -42,7 +42,7 @@
     public ICopySerializableAggregateFunctionFactory createSerializableAggregateFunctionFactory(
             final ICopyEvaluatorFactory[] args) throws AlgebricksException {
         return new ICopySerializableAggregateFunctionFactory() {
-            private static final long serialVersionUID = 1L;           
+            private static final long serialVersionUID = 1L;
 
             @Override
             public ICopySerializableAggregateFunction createAggregateFunction() throws AlgebricksException {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java
index 0d86176..bea6ab8 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/serializable/std/SerializableSumAggregateFunction.java
@@ -85,8 +85,8 @@
         } else if (aggType == ATypeTag.SYSTEM_NULL) {
             aggType = typeTag;
         } else if (typeTag != ATypeTag.SYSTEM_NULL && typeTag != aggType) {
-            throw new AlgebricksException("Unexpected type " + typeTag
-                    + " in aggregation input stream. Expected type " + aggType + ".");
+            throw new AlgebricksException("Unexpected type " + typeTag + " in aggregation input stream. Expected type "
+                    + aggType + ".");
         }
         switch (typeTag) {
             case INT8: {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
index 256af09..09a659c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/aggregates/std/LocalAvgAggregateDescriptor.java
@@ -152,7 +152,7 @@
                         } else if (ATypeHierarchy.canPromote(aggType, typeTag)) {
                             aggType = typeTag;
                         }
-                        
+
                         if (typeTag != ATypeTag.SYSTEM_NULL) {
                             ++count;
                         }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java
index b972cfd..7455ae9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/AsterixListAccessor.java
@@ -26,84 +26,84 @@
 import edu.uci.ics.asterix.om.util.NonTaggedFormatUtil;
 
 /**
- * Utility class for accessing serialized unordered and ordered lists. 
+ * Utility class for accessing serialized unordered and ordered lists.
  */
 public class AsterixListAccessor {
 
-	protected byte[] listBytes;
-	protected int start;
-	protected ATypeTag listType;
-	protected ATypeTag itemType;
-	protected int size;
-	
-	public ATypeTag getListType() {
-		return listType;
-	}
+    protected byte[] listBytes;
+    protected int start;
+    protected ATypeTag listType;
+    protected ATypeTag itemType;
+    protected int size;
 
-	public ATypeTag getItemType() {
-		return itemType;
-	}
+    public ATypeTag getListType() {
+        return listType;
+    }
 
-	public boolean itemsAreSelfDescribing() {
-		return itemType == ATypeTag.ANY;
-	}
+    public ATypeTag getItemType() {
+        return itemType;
+    }
 
-	public void reset(byte[] listBytes, int start) throws AsterixException {
-		this.listBytes = listBytes;
-		this.start = start;
-		listType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[start]);
-		if (listType != ATypeTag.UNORDEREDLIST && listType != ATypeTag.ORDEREDLIST) {
-			throw new AsterixException("Unsupported type: " + listType);
-		}
-		itemType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[start + 1]);
-		if (listType == ATypeTag.UNORDEREDLIST) {
-			size = AUnorderedListSerializerDeserializer.getNumberOfItems(listBytes, start);
-		} else {
-			size = AOrderedListSerializerDeserializer.getNumberOfItems(listBytes, start);
-		}
-	}
+    public boolean itemsAreSelfDescribing() {
+        return itemType == ATypeTag.ANY;
+    }
 
-	public int size() {
-		return size;
-	}
-	
-	public int getItemOffset(int itemIndex) throws AsterixException {
-		if (listType == ATypeTag.UNORDEREDLIST) {
-			return AUnorderedListSerializerDeserializer.getItemOffset(listBytes, start, itemIndex);
-		} else {
-			return AOrderedListSerializerDeserializer.getItemOffset(listBytes, start, itemIndex);
-		}
-	}
-	
-	public int getItemLength(int itemOffset) throws AsterixException {
-		ATypeTag itemType = getItemType(itemOffset);
-		return NonTaggedFormatUtil.getFieldValueLength(listBytes, itemOffset, itemType, itemsAreSelfDescribing());
-	}
-	
-	public ATypeTag getItemType(int itemOffset) throws AsterixException {
-		if (itemType == ATypeTag.ANY) {
-			return EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[itemOffset]);
-		} else {
-			return itemType;
-		}
-	}
-	
-	public void writeItem(int itemIndex, DataOutput dos) throws AsterixException, IOException {
-		int itemOffset = getItemOffset(itemIndex);
-		int itemLength = getItemLength(itemOffset);
-		if (itemsAreSelfDescribing()) {
-			++itemLength;
-		} else {
-			dos.writeByte(itemType.serialize());
-		}
-		dos.write(listBytes, itemOffset, itemLength);
-	}
-	
-	public byte[] getByteArray() {
-		return listBytes;
-	}
-	
-	public int getStart() {
-		return start;
-	}
+    public void reset(byte[] listBytes, int start) throws AsterixException {
+        this.listBytes = listBytes;
+        this.start = start;
+        listType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[start]);
+        if (listType != ATypeTag.UNORDEREDLIST && listType != ATypeTag.ORDEREDLIST) {
+            throw new AsterixException("Unsupported type: " + listType);
+        }
+        itemType = EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[start + 1]);
+        if (listType == ATypeTag.UNORDEREDLIST) {
+            size = AUnorderedListSerializerDeserializer.getNumberOfItems(listBytes, start);
+        } else {
+            size = AOrderedListSerializerDeserializer.getNumberOfItems(listBytes, start);
+        }
+    }
+
+    public int size() {
+        return size;
+    }
+
+    public int getItemOffset(int itemIndex) throws AsterixException {
+        if (listType == ATypeTag.UNORDEREDLIST) {
+            return AUnorderedListSerializerDeserializer.getItemOffset(listBytes, start, itemIndex);
+        } else {
+            return AOrderedListSerializerDeserializer.getItemOffset(listBytes, start, itemIndex);
+        }
+    }
+
+    public int getItemLength(int itemOffset) throws AsterixException {
+        ATypeTag itemType = getItemType(itemOffset);
+        return NonTaggedFormatUtil.getFieldValueLength(listBytes, itemOffset, itemType, itemsAreSelfDescribing());
+    }
+
+    public ATypeTag getItemType(int itemOffset) throws AsterixException {
+        if (itemType == ATypeTag.ANY) {
+            return EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(listBytes[itemOffset]);
+        } else {
+            return itemType;
+        }
+    }
+
+    public void writeItem(int itemIndex, DataOutput dos) throws AsterixException, IOException {
+        int itemOffset = getItemOffset(itemIndex);
+        int itemLength = getItemLength(itemOffset);
+        if (itemsAreSelfDescribing()) {
+            ++itemLength;
+        } else {
+            dos.writeByte(itemType.serialize());
+        }
+        dos.write(listBytes, itemOffset, itemLength);
+    }
+
+    public byte[] getByteArray() {
+        return listBytes;
+    }
+
+    public int getStart() {
+        return start;
+    }
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java
index dfb236e..9d6d4e1 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/CreateMBREvalFactory.java
@@ -80,7 +80,8 @@
                 // type-check: (Point/Line/Polygon/Circle/Rectangle/Null, Int32, Int32)
                 if (outInput1.getByteArray()[0] != SER_INT32_TYPE_TAG
                         || outInput2.getByteArray()[0] != SER_INT32_TYPE_TAG) {
-                    throw new AlgebricksException("Expects Types: (Point/Line/Polygon/Circle/Rectangle/Null, Int32, Int32).");
+                    throw new AlgebricksException(
+                            "Expects Types: (Point/Line/Polygon/Circle/Rectangle/Null, Int32, Int32).");
                 }
 
                 try {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java
index d7a409d..20bd366 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/FieldAccessByIndexEvalFactory.java
@@ -49,8 +49,8 @@
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static byte SER_RECORD_TYPE_TAG = ATypeTag.RECORD.serialize();
 
-    public FieldAccessByIndexEvalFactory(ICopyEvaluatorFactory recordEvalFactory, ICopyEvaluatorFactory fieldIndexEvalFactory,
-            ARecordType recordType) {
+    public FieldAccessByIndexEvalFactory(ICopyEvaluatorFactory recordEvalFactory,
+            ICopyEvaluatorFactory fieldIndexEvalFactory, ARecordType recordType) {
         this.recordEvalFactory = recordEvalFactory;
         this.fieldIndexEvalFactory = fieldIndexEvalFactory;
         this.recordType = recordType;
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java
index 390d1de..11f1e3d 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedCheckEvaluator.java
@@ -23,7 +23,7 @@
 public class SimilarityJaccardSortedCheckEvaluator extends SimilarityJaccardCheckEvaluator {
 
     protected final SimilarityMetricJaccard jaccard = new SimilarityMetricJaccard();
-    
+
     public SimilarityJaccardSortedCheckEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
             throws AlgebricksException {
         super(args, output);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java
index 9318bd4..67b9ccc 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/common/SimilarityJaccardSortedEvaluator.java
@@ -24,11 +24,11 @@
 public class SimilarityJaccardSortedEvaluator extends SimilarityJaccardEvaluator {
 
     protected final SimilarityMetricJaccard jaccard = new SimilarityMetricJaccard();
-    
-	public SimilarityJaccardSortedEvaluator(ICopyEvaluatorFactory[] args,
-			IDataOutputProvider output) throws AlgebricksException {
-		super(args, output);
-	}
+
+    public SimilarityJaccardSortedEvaluator(ICopyEvaluatorFactory[] args, IDataOutputProvider output)
+            throws AlgebricksException {
+        super(args, output);
+    }
 
     protected float computeResult(byte[] bytes, int firstStart, int secondStart, ATypeTag argType)
             throws AlgebricksException {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java
index 20327ff..d62db02 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/comparisons/ComparisonEvalFactory.java
@@ -45,7 +45,7 @@
     public ICopyEvaluator createEvaluator(IDataOutputProvider output) throws AlgebricksException {
         DataOutput out = output.getDataOutput();
         switch (comparisonKind) {
-            // Should we do any normalization?
+        // Should we do any normalization?
             case EQ: {
                 return new EqualityComparisonEvaluator(out, evalLeftFactory, evalRightFactory);
             }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java
index 29e4a77..732cd0e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/constructors/AIntervalFromTimeConstructorDescriptor.java
@@ -116,7 +116,7 @@
                             if (intervalStart < 0) {
                                 intervalStart += GregorianCalendarSystem.CHRONON_OF_DAY;
                             }
-                            
+
                             if (argOut1.getByteArray()[0] == SER_TIME_TYPE_TAG) {
                                 intervalEnd = ATimeSerializerDeserializer.getChronon(argOut1.getByteArray(), 1);
                             } else if (argOut1.getByteArray()[0] == SER_STRING_TYPE_TAG) {
@@ -135,12 +135,12 @@
                             if (intervalEnd < 0) {
                                 intervalEnd += GregorianCalendarSystem.CHRONON_OF_DAY;
                             }
-                            
+
                             if (intervalEnd < intervalStart) {
                                 throw new AlgebricksException(FID.getName()
                                         + ": interval end must not be less than the interval start.");
                             }
-                            
+
                             aInterval.setValue(intervalStart, intervalEnd, ATypeTag.TIME.serialize());
                             intervalSerde.serialize(aInterval, out);
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastListDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastListDescriptor.java
index c1817e5..fb0084c 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastListDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CastListDescriptor.java
@@ -39,7 +39,6 @@
  * The runtime function for casting a list(unordered list or ordered list)
  * 
  * @author yingyib
- *
  */
 public class CastListDescriptor extends AbstractScalarFunctionDynamicDescriptor {
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java
index 925e4d4..77799cb 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/CodepointIterator.java
@@ -17,14 +17,16 @@
 import edu.uci.ics.hyracks.data.std.primitive.UTF8StringPointable;
 
 public class CodepointIterator {
-    public void reset(byte [] buf, int startPos) {
+    public void reset(byte[] buf, int startPos) {
         this.buf = buf;
         this.curPos = startPos + 2;
         this.startPos = startPos;
-        len = UTF8StringPointable.getUTFLength(buf, startPos);        
+        len = UTF8StringPointable.getUTFLength(buf, startPos);
     }
-    
-    public int size() { return len; }
+
+    public int size() {
+        return len;
+    }
 
     private byte[] buf;
     private int curPos = 0;
@@ -40,66 +42,54 @@
             // 1 byte
             return b[s];
         } else if ((b[s] & 0xe0) == 0xc0) { /*
-             * 0xe0 = 0b1110000
-             */
+                                            * 0xe0 = 0b1110000
+                                            */
             // 2 bytes
-            return ((int) (b[s] & 0x1f)) << 6
-                    | /*
-                     * 0x3f = 0b00111111
-                     */ ((int) (b[s + 1] & 0x3f));
+            return ((int) (b[s] & 0x1f)) << 6 | /*
+                                                * 0x3f = 0b00111111
+                                                */((int) (b[s + 1] & 0x3f));
         } else if ((b[s] & 0xf0) == 0xe0) {
             // 3bytes
-            return ((int) (b[s] & 0xf)) << 12
-                    | ((int) (b[s + 1] & 0x3f)) << 6
-                    | ((int) (b[s + 2] & 0x3f));
+            return ((int) (b[s] & 0xf)) << 12 | ((int) (b[s + 1] & 0x3f)) << 6 | ((int) (b[s + 2] & 0x3f));
         } else if ((b[s] & 0xf8) == 0xf0) {
             // 4bytes
-            return ((int) (b[s] & 0x7)) << 18
-                    | ((int) (b[s + 1] & 0x3f)) << 12
-                    | ((int) (b[s + 2] & 0x3f)) << 6
+            return ((int) (b[s] & 0x7)) << 18 | ((int) (b[s + 1] & 0x3f)) << 12 | ((int) (b[s + 2] & 0x3f)) << 6
                     | ((int) (b[s + 3] & 0x3f));
         } else if ((b[s] & 0xfc) == 0xf8) {
             // 5bytes
-            return ((int) (b[s] & 0x3)) << 24
-                    | ((int) (b[s + 1] & 0x3f)) << 18
-                    | ((int) (b[s + 2] & 0x3f)) << 12
-                    | ((int) (b[s + 3] & 0x3f)) << 6
-                    | ((int) (b[s + 4] & 0x3f));
+            return ((int) (b[s] & 0x3)) << 24 | ((int) (b[s + 1] & 0x3f)) << 18 | ((int) (b[s + 2] & 0x3f)) << 12
+                    | ((int) (b[s + 3] & 0x3f)) << 6 | ((int) (b[s + 4] & 0x3f));
         } else if ((b[s] & 0xfe) == 0xfc) {
             // 6bytes
-            return ((int) (b[s] & 0x1)) << 30
-                    | ((int) (b[s + 1] & 0x3f)) << 24
-                    | ((int) (b[s + 2] & 0x3f)) << 18
-                    | ((int) (b[s + 3] & 0x3f)) << 12
-                    | ((int) (b[s + 4] & 0x3f)) << 6
-                    | ((int) (b[s + 5] & 0x3f));
+            return ((int) (b[s] & 0x1)) << 30 | ((int) (b[s + 1] & 0x3f)) << 24 | ((int) (b[s + 2] & 0x3f)) << 18
+                    | ((int) (b[s + 3] & 0x3f)) << 12 | ((int) (b[s + 4] & 0x3f)) << 6 | ((int) (b[s + 5] & 0x3f));
         }
         return 0;
     }
 
     public void next() {
         int step = UTF8StringPointable.charSize(buf, curPos);
-        if(step + curPos < len + 2 + startPos)
+        if (step + curPos < len + 2 + startPos)
             curPos += step;
     }
 
     public boolean hasNext() {
         int step = UTF8StringPointable.charSize(buf, curPos);
-        if(step + curPos < len + 2 + startPos)
-            return true;   
+        if (step + curPos < len + 2 + startPos)
+            return true;
         return false;
     }
-    
+
     public static int compare(CodepointIterator ls, CodepointIterator rs) {
         CodepointIterator shortString = ls.size() < rs.size() ? ls : rs;
-        
+
         while (true) {
             int c1 = ls.getCodePoint();
             int c2 = rs.getCodePoint();
             if (c1 != c2) {
                 return c1 - c2;
             }
-            if(shortString.hasNext()) {
+            if (shortString.hasNext()) {
                 ls.next();
                 rs.next();
             } else {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
index 8439edd..a4d998b 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/NumericFloorDescriptor.java
@@ -143,7 +143,8 @@
                                 aDouble.setValue(Math.floor(val));
                                 serde.serialize(aDouble, out);
                             } else {
-                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_FLOOR.getName() + ": not implemented for "
+                                throw new NotImplementedException(AsterixBuiltinFunctions.NUMERIC_FLOOR.getName()
+                                        + ": not implemented for "
                                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut.getByteArray()[0]));
                             }
                         } catch (HyracksDataException e) {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
index b66b30b..31d3090 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/OrderedListConstructorDescriptor.java
@@ -108,7 +108,7 @@
                     try {
                         for (int i = 0; i < argEvals.length; i++) {
                             inputVal.reset();
-                            argEvals[i].evaluate(tuple);                            
+                            argEvals[i].evaluate(tuple);
                             builder.addItem(inputVal);
                         }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEvaluatorUtils.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEvaluatorUtils.java
index 98a70b4..f593a4f 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEvaluatorUtils.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/StringEvaluatorUtils.java
@@ -45,5 +45,5 @@
 
     public final static char[] reservedRegexChars = new char[] { '$', '(', ')', '*', '.', '[', '\\', ']', '^', '{',
             '|', '}' };
-    
+
 }
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
index 4fa03dd..1b8edff 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/SubstringBeforeDescriptor.java
@@ -86,7 +86,7 @@
                         int posPattern = 3;
 
                         int offset = 0;
-                        while (posSrc - 3 < srcLen - patternLen) {                       
+                        while (posSrc - 3 < srcLen - patternLen) {
                             while (posPattern + offset - 3 < patternLen && posSrc + offset - 3 < srcLen) {
                                 char c1 = UTF8StringPointable.charAt(src, posSrc + offset);
                                 char c2 = UTF8StringPointable.charAt(pattern, posPattern + offset);
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/MillisecondsFromDayTimeDurationDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/MillisecondsFromDayTimeDurationDescriptor.java
index 14e16c6..122649e 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/MillisecondsFromDayTimeDurationDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/MillisecondsFromDayTimeDurationDescriptor.java
@@ -91,7 +91,8 @@
                             }
 
                             if (argOut0.getByteArray()[0] != SER_DAY_TIME_DURATION_TYPE_TAG) {
-                                throw new AlgebricksException(FID.getName() + ": expects NULL/DAY-TIME-DURATION, but got "
+                                throw new AlgebricksException(FID.getName()
+                                        + ": expects NULL/DAY-TIME-DURATION, but got "
                                         + EnumDeserializer.ATYPETAGDESERIALIZER.deserialize(argOut0.getByteArray()[0]));
                             }
 
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/ParseTimeDescriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/ParseTimeDescriptor.java
index 8ee76e7..6db8453 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/ParseTimeDescriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/ParseTimeDescriptor.java
@@ -110,7 +110,7 @@
                             int length1 = (argOut1.getByteArray()[1] & 0xff << 8)
                                     + (argOut1.getByteArray()[2] & 0xff << 0);
                             long chronon = 0;
-                            
+
                             int formatStart = 3;
                             int formatLength = 0;
                             boolean processSuccessfully = false;
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/YearMonthDurationComparatorDecriptor.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/YearMonthDurationComparatorDecriptor.java
index 22ab96c..c3f6379 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/YearMonthDurationComparatorDecriptor.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/evaluators/functions/temporal/YearMonthDurationComparatorDecriptor.java
@@ -46,7 +46,7 @@
     // allowed input types
     private final static byte SER_NULL_TYPE_TAG = ATypeTag.NULL.serialize();
     private final static byte SER_DURATION_TYPE_TAG = ATypeTag.DURATION.serialize();
-    
+
     private final boolean isGreaterThan;
 
     private YearMonthDurationComparatorDecriptor(boolean isGreaterThan) {
diff --git a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java
index aaa38d3..34bc1f9 100644
--- a/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java
+++ b/asterix-runtime/src/main/java/edu/uci/ics/asterix/runtime/operators/file/AbstractDataParser.java
@@ -40,42 +40,42 @@
  */
 public abstract class AbstractDataParser implements IDataParser {
 
-	protected AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
-	protected AMutableInt16 aInt16 = new AMutableInt16((short) 0);
-	protected AMutableInt32 aInt32 = new AMutableInt32(0);
-	protected AMutableInt64 aInt64 = new AMutableInt64(0);
-	protected AMutableDouble aDouble = new AMutableDouble(0);
-	protected AMutableFloat aFloat = new AMutableFloat(0);
-	protected AMutableString aString = new AMutableString("");
-	protected AMutableString aStringFieldName = new AMutableString("");
+    protected AMutableInt8 aInt8 = new AMutableInt8((byte) 0);
+    protected AMutableInt16 aInt16 = new AMutableInt16((short) 0);
+    protected AMutableInt32 aInt32 = new AMutableInt32(0);
+    protected AMutableInt64 aInt64 = new AMutableInt64(0);
+    protected AMutableDouble aDouble = new AMutableDouble(0);
+    protected AMutableFloat aFloat = new AMutableFloat(0);
+    protected AMutableString aString = new AMutableString("");
+    protected AMutableString aStringFieldName = new AMutableString("");
 
-	// Serializers
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ADOUBLE);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ASTRING);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AFloat> floatSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AFLOAT);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt8> int8Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT8);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt16> int16Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT16);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT32);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<AInt64> int64Serde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.AINT64);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ABOOLEAN);
-	@SuppressWarnings("unchecked")
-	protected ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
-			.getSerializerDeserializer(BuiltinType.ANULL);
+    // Serializers
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<ADouble> doubleSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ADOUBLE);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AString> stringSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ASTRING);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AFloat> floatSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AFLOAT);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt8> int8Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT8);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt16> int16Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT16);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt32> int32Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT32);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<AInt64> int64Serde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.AINT64);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<ABoolean> booleanSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ABOOLEAN);
+    @SuppressWarnings("unchecked")
+    protected ISerializerDeserializer<ANull> nullSerde = AqlSerializerDeserializerProvider.INSTANCE
+            .getSerializerDeserializer(BuiltinType.ANULL);
 
 }
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java
index 0d697c0..bb42819 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/datagen/CustOrdDataGen.java
@@ -48,7 +48,7 @@
     private String[] INTERESTS = { "Bass", "Music", "Databases", "Fishing", "Tennis", "Squash", "Computers", "Books",
             "Movies", "Cigars", "Wine", "Running", "Walking", "Skiing", "Basketball", "Video Games", "Cooking",
             "Coffee", "Base Jumping", "Puzzles", "Chess", "Programming", "Reddit", "Soccer", "Hockey", "Money",
-            "Dancing", "Brewing", "Gardening", "Hacking", "Reading"};
+            "Dancing", "Brewing", "Gardening", "Hacking", "Reading" };
 
     private static final int MIN_CHILD_AGE = 0;
 
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GULongIDGenerator.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GULongIDGenerator.java
index 61c4345..0832613 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GULongIDGenerator.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GULongIDGenerator.java
@@ -19,28 +19,28 @@
 
 public class GULongIDGenerator {
 
-	private final int partition;
-	private final long baseValue;
-	private final AtomicLong nextValue;
+    private final int partition;
+    private final long baseValue;
+    private final AtomicLong nextValue;
 
-	public GULongIDGenerator(int partition, byte seed) {
-		this.partition = partition;
-		ByteBuffer buffer = ByteBuffer.allocate(8);
-		buffer.put(seed);
-		buffer.put((byte) partition);
-		buffer.putInt(0);
-		buffer.putShort((short) 0);
-		buffer.flip();
-		this.baseValue = new Long(buffer.getLong());
-		this.nextValue = new AtomicLong(baseValue);
-	}
+    public GULongIDGenerator(int partition, byte seed) {
+        this.partition = partition;
+        ByteBuffer buffer = ByteBuffer.allocate(8);
+        buffer.put(seed);
+        buffer.put((byte) partition);
+        buffer.putInt(0);
+        buffer.putShort((short) 0);
+        buffer.flip();
+        this.baseValue = new Long(buffer.getLong());
+        this.nextValue = new AtomicLong(baseValue);
+    }
 
-	public long getNextULong() {
-		return nextValue.incrementAndGet();
-	}
+    public long getNextULong() {
+        return nextValue.incrementAndGet();
+    }
 
-	public int getPartition() {
-		return partition;
-	}
+    public int getPartition() {
+        return partition;
+    }
 
 }
diff --git a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java
index 31c50a7..4cdda1e 100644
--- a/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java
+++ b/asterix-tools/src/main/java/edu/uci/ics/asterix/tools/external/data/GenericSocketFeedAdapter.java
@@ -73,7 +73,7 @@
                 socket = serverSocket.accept();
                 inputStream = socket.getInputStream();
             } catch (IOException e) {
-            	if (LOGGER.isLoggable(Level.SEVERE)) {
+                if (LOGGER.isLoggable(Level.SEVERE)) {
                     LOGGER.severe("Unable to create input stream required for feed ingestion");
                 }
                 e.printStackTrace();
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
index 563e9b7..9a0e49f 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/opcallbacks/SecondaryIndexModificationOperationCallbackFactory.java
@@ -56,8 +56,9 @@
 
         try {
             ITransactionContext txnCtx = txnSubsystem.getTransactionManager().getTransactionContext(jobId, false);
-            IModificationOperationCallback modCallback = new SecondaryIndexModificationOperationCallback(datasetId, primaryKeyFields, txnCtx,
-                    txnSubsystem.getLockManager(), txnSubsystem, resourceId, resourceType, indexOp);
+            IModificationOperationCallback modCallback = new SecondaryIndexModificationOperationCallback(datasetId,
+                    primaryKeyFields, txnCtx, txnSubsystem.getLockManager(), txnSubsystem, resourceId, resourceType,
+                    indexOp);
             txnCtx.registerIndexAndCallback(resourceId, index, (AbstractOperationCallback) modCallback, false);
             return modCallback;
         } catch (ACIDException e) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java
index b2f8ae6..dc85360 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/resource/PersistentLocalResourceFactory.java
@@ -19,7 +19,7 @@
 import edu.uci.ics.hyracks.storage.common.file.LocalResource;
 
 public class PersistentLocalResourceFactory implements ILocalResourceFactory {
-    
+
     private final ILocalResourceMetadata localResourceMetadata;
     private final int resourceType;
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java
index 0573957..f3ff0e0 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/DatasetLockInfo.java
@@ -288,7 +288,7 @@
             //This entityInfo(i.e., holder) is the last resource held by this job.
             jobInfo.setlastHoldingResource(holder);
         }
-        
+
         //jobInfo.decreaseDatasetLockCount(holder);
     }
 
@@ -317,9 +317,9 @@
         lastObj = lockWaiterManager.getLockWaiter(waiterObjId);
         lastObj.setNextWaiterObjId(-1);
 
-//        if (LockManager.IS_DEBUG_MODE) {
-//            System.out.println(printWaiters());
-//        }
+        //        if (LockManager.IS_DEBUG_MODE) {
+        //            System.out.println(printWaiters());
+        //        }
     }
 
     public void removeWaiter(int waiterObjId) {
@@ -362,9 +362,9 @@
             firstWaiter = nextObjId;
         }
 
-//        if (LockManager.IS_DEBUG_MODE) {
-//            System.out.println(printWaiters());
-//        }
+        //        if (LockManager.IS_DEBUG_MODE) {
+        //            System.out.println(printWaiters());
+        //        }
     }
 
     public void addUpgrader(int waiterObjId) {
@@ -451,7 +451,7 @@
 
         return s.toString();
     }
-    
+
     public String coreDump() {
         StringBuilder sb = new StringBuilder();
         sb.append("\n\t firstUpgrader: " + firstUpgrader);
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java
index ef4cf2e..1c6cb7d 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityInfoManager.java
@@ -257,7 +257,7 @@
                 break;
             }
         }
-        
+
         //reset allocChild to the first buffer
         allocChild = 0;
 
@@ -279,19 +279,19 @@
         }
         return s.toString();
     }
-    
+
     public void coreDump(OutputStream os) {
         StringBuilder sb = new StringBuilder("\n\t########### EntityLockInfoManager Status #############\n");
         int size = pArray.size();
         ChildEntityInfoArrayManager child;
 
-        sb.append("Number of Child: " + size + "\n"); 
+        sb.append("Number of Child: " + size + "\n");
         for (int i = 0; i < size; i++) {
             try {
                 child = pArray.get(i);
                 sb.append("child[" + i + "]");
                 sb.append(child.prettyPrint());
-                
+
                 os.write(sb.toString().getBytes());
             } catch (IOException e) {
                 //ignore IOException
@@ -299,7 +299,7 @@
             sb = new StringBuilder();
         }
     }
-    
+
     public int getShrinkTimerThreshold() {
         return shrinkTimerThreshold;
     }
@@ -575,7 +575,7 @@
     public int getFreeSlotNum() {
         return freeSlotNum;
     }
-    
+
     public String prettyPrint() {
         StringBuilder sb = new StringBuilder();
         sb.append("\n\toccupiedSlots:" + getNumOfOccupiedSlots());
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java
index 2c64b26..9e9a219 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/EntityLockInfoManager.java
@@ -256,7 +256,7 @@
                 break;
             }
         }
-        
+
         //reset allocChild to the first buffer
         allocChild = 0;
 
@@ -278,19 +278,19 @@
         }
         return s.toString();
     }
-    
+
     public void coreDump(OutputStream os) {
         StringBuilder sb = new StringBuilder("\n\t########### EntityLockInfoManager Status #############\n");
         int size = pArray.size();
         ChildEntityLockInfoArrayManager child;
 
-        sb.append("Number of Child: " + size + "\n"); 
+        sb.append("Number of Child: " + size + "\n");
         for (int i = 0; i < size; i++) {
             try {
                 child = pArray.get(i);
                 sb.append("child[" + i + "]");
                 sb.append(child.prettyPrint());
-                
+
                 os.write(sb.toString().getBytes());
             } catch (IOException e) {
                 //ignore IOException
@@ -298,7 +298,7 @@
             sb = new StringBuilder();
         }
     }
-    
+
     public int getShrinkTimerThreshold() {
         return SHRINK_TIMER_THRESHOLD;
     }
@@ -751,7 +751,7 @@
     public int getFreeSlotNum() {
         return freeSlotNum;
     }
-    
+
     public String prettyPrint() {
         StringBuilder sb = new StringBuilder();
         sb.append("\n\toccupiedSlots:" + getNumOfOccupiedSlots());
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
index 28d60f3..46bde4e 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/JobInfo.java
@@ -289,7 +289,7 @@
         }
         return s.toString();
     }
-    
+
     public String coreDump() {
         StringBuilder sb = new StringBuilder();
         sb.append("\n\t datasetISLockHT");
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
index e61cb55..b3cff76 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockManagerDeterministicUnitTest.java
@@ -42,7 +42,8 @@
         //prepare configuration file
         File cwd = new File(System.getProperty("user.dir"));
         File asterixdbDir = cwd.getParentFile();
-        File srcFile = new File(asterixdbDir.getAbsoluteFile(), "asterix-app/src/main/resources/asterix-build-configuration.xml");
+        File srcFile = new File(asterixdbDir.getAbsoluteFile(),
+                "asterix-app/src/main/resources/asterix-build-configuration.xml");
         File destFile = new File(cwd, "target/classes/asterix-configuration.xml");
         FileUtils.copyFile(srcFile, destFile);
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java
index 702f492..a5bae28 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockRequestTracker.java
@@ -45,7 +45,7 @@
         //handle global request queue
         historyForAllJobs.append(request.prettyPrint()).append("--> ").append(msg).append("\n");
     }
-    
+
     public void addRequest(LockRequest request) {
         requestHistoryForAllJobs.append(request.prettyPrint());
     }
@@ -64,7 +64,7 @@
         }
         return history.toString();
     }
-    
+
     public String getRequestHistoryForAllJobs() {
         return requestHistoryForAllJobs.toString();
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java
index 8bf9929..8fa28fe 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiter.java
@@ -17,9 +17,9 @@
 
 /**
  * LockWaiter object is used for keeping a lock waiter or a lock upgrader information on a certain resource.
- * The resource can be a dataset or an entity. 
+ * The resource can be a dataset or an entity.
+ * 
  * @author kisskys
- *
  */
 public class LockWaiter {
     /**
@@ -77,69 +77,69 @@
     public boolean isVictim() {
         return this.victim;
     }
-    
+
     public void increaseWaiterCount() {
         waiterCount++;
     }
-    
+
     public void decreaseWaiterCount() {
         waiterCount--;
     }
-    
+
     public byte getWaiterCount() {
         return waiterCount;
     }
-    
+
     public void setWaiterCount(byte count) {
         waiterCount = count;
     }
-    
+
     public void setFirstGetUp(boolean isFirst) {
         firstGetUp = isFirst;
     }
-    
+
     public boolean isFirstGetUp() {
         return firstGetUp;
     }
-    
+
     public void setNextWaiterObjId(int next) {
         nextWaiterObjId = next;
     }
-    
+
     public int getNextWaiterObjId() {
         return nextWaiterObjId;
     }
-    
+
     public void setNextWaitingResourceObjId(int next) {
         nextWaitingResourceObjId = next;
     }
-    
+
     public int getNextWaitingResourceObjId() {
         return nextWaitingResourceObjId;
     }
-    
+
     public void setBeginWaitTime(long time) {
         this.beginWaitTime = time;
     }
-    
+
     public long getBeginWaitTime() {
         return beginWaitTime;
     }
-    
+
     public boolean isWaiter() {
         return isWaiter;
     }
-    
+
     public void setWaiter(boolean isWaiter) {
         this.isWaiter = isWaiter;
     }
-    
+
     public boolean isWaitingOnEntityLock() {
         return isWaitingOnEntityLock;
     }
-    
+
     public void setWaitingOnEntityLock(boolean isWaitingOnEntityLock) {
         this.isWaitingOnEntityLock = isWaitingOnEntityLock;
     }
-    
+
 }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java
index 617c9ba..110f8a2 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/LockWaiterManager.java
@@ -37,96 +37,96 @@
     private boolean isShrinkTimerOn;
     private int occupiedSlots;
 
-//    ////////////////////////////////////////////////
-//    // begin of unit test
-//    ////////////////////////////////////////////////
-//
-//    public static final int SHRINK_TIMER_THRESHOLD = 0; //for unit test
-//
-//    /**
-//     * @param args
-//     */
-//    public static void main(String[] args) {
-//        final int DataSize = 5000;
-//
-//        int i, j;
-//        int slots = ChildLockWaiterArrayManager.NUM_OF_SLOTS;
-//        int data[] = new int[DataSize];
-//        LockWaiterManager lwMgr = new LockWaiterManager();
-//
-//        //allocate: 50
-//        System.out.println("allocate: 50");
-//        for (i = 0; i < 5; i++) {
-//            for (j = i * slots; j < i * slots + slots; j++) {
-//                data[j] = lwMgr.allocate();
-//            }
-//
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//
-//        //deallocate from the last child to the first child
-//        System.out.println("deallocate from the last child to the first child");
-//        for (i = 4; i >= 0; i--) {
-//            for (j = i * slots + slots - 1; j >= i * slots; j--) {
-//                lwMgr.deallocate(data[j]);
-//            }
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//
-//        //allocate: 50
-//        System.out.println("allocate: 50");
-//        for (i = 0; i < 5; i++) {
-//            for (j = i * slots; j < i * slots + slots; j++) {
-//                data[j] = lwMgr.allocate();
-//            }
-//
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//
-//        //deallocate from the first child to last child
-//        System.out.println("deallocate from the first child to last child");
-//        for (i = 0; i < 5; i++) {
-//            for (j = i * slots; j < i * slots + slots; j++) {
-//                lwMgr.deallocate(data[j]);
-//            }
-//
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//
-//        //allocate: 50
-//        System.out.println("allocate: 50");
-//        for (i = 0; i < 5; i++) {
-//            for (j = i * slots; j < i * slots + slots; j++) {
-//                data[j] = lwMgr.allocate();
-//            }
-//
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//
-//        //deallocate from the first child to 4th child
-//        System.out.println("deallocate from the first child to 4th child");
-//        for (i = 0; i < 4; i++) {
-//            for (j = i * slots; j < i * slots + slots; j++) {
-//                lwMgr.deallocate(data[j]);
-//            }
-//
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//
-//        //allocate: 40
-//        System.out.println("allocate: 40");
-//        for (i = 0; i < 4; i++) {
-//            for (j = i * slots; j < i * slots + slots; j++) {
-//                data[j] = lwMgr.allocate();
-//            }
-//
-//            System.out.println(lwMgr.prettyPrint());
-//        }
-//    }
-//
-//    ////////////////////////////////////////////////
-//    // end of unit test
-//    ////////////////////////////////////////////////
+    //    ////////////////////////////////////////////////
+    //    // begin of unit test
+    //    ////////////////////////////////////////////////
+    //
+    //    public static final int SHRINK_TIMER_THRESHOLD = 0; //for unit test
+    //
+    //    /**
+    //     * @param args
+    //     */
+    //    public static void main(String[] args) {
+    //        final int DataSize = 5000;
+    //
+    //        int i, j;
+    //        int slots = ChildLockWaiterArrayManager.NUM_OF_SLOTS;
+    //        int data[] = new int[DataSize];
+    //        LockWaiterManager lwMgr = new LockWaiterManager();
+    //
+    //        //allocate: 50
+    //        System.out.println("allocate: 50");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = lwMgr.allocate();
+    //            }
+    //
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //
+    //        //deallocate from the last child to the first child
+    //        System.out.println("deallocate from the last child to the first child");
+    //        for (i = 4; i >= 0; i--) {
+    //            for (j = i * slots + slots - 1; j >= i * slots; j--) {
+    //                lwMgr.deallocate(data[j]);
+    //            }
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //
+    //        //allocate: 50
+    //        System.out.println("allocate: 50");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = lwMgr.allocate();
+    //            }
+    //
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //
+    //        //deallocate from the first child to last child
+    //        System.out.println("deallocate from the first child to last child");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                lwMgr.deallocate(data[j]);
+    //            }
+    //
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //
+    //        //allocate: 50
+    //        System.out.println("allocate: 50");
+    //        for (i = 0; i < 5; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = lwMgr.allocate();
+    //            }
+    //
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //
+    //        //deallocate from the first child to 4th child
+    //        System.out.println("deallocate from the first child to 4th child");
+    //        for (i = 0; i < 4; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                lwMgr.deallocate(data[j]);
+    //            }
+    //
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //
+    //        //allocate: 40
+    //        System.out.println("allocate: 40");
+    //        for (i = 0; i < 4; i++) {
+    //            for (j = i * slots; j < i * slots + slots; j++) {
+    //                data[j] = lwMgr.allocate();
+    //            }
+    //
+    //            System.out.println(lwMgr.prettyPrint());
+    //        }
+    //    }
+    //
+    //    ////////////////////////////////////////////////
+    //    // end of unit test
+    //    ////////////////////////////////////////////////
 
     public LockWaiterManager() {
         pArray = new ArrayList<ChildLockWaiterArrayManager>();
@@ -249,7 +249,7 @@
                 break;
             }
         }
-        
+
         //reset allocChild to the first buffer
         allocChild = 0;
 
@@ -271,19 +271,19 @@
         }
         return s.toString();
     }
-    
+
     public void coreDump(OutputStream os) {
         StringBuilder sb = new StringBuilder("\n########### LockWaiterManager Status #############\n");
         int size = pArray.size();
         ChildLockWaiterArrayManager child;
 
-        sb.append("Number of Child: " + size + "\n"); 
+        sb.append("Number of Child: " + size + "\n");
         for (int i = 0; i < size; i++) {
             try {
                 child = pArray.get(i);
                 sb.append("child[" + i + "]");
                 sb.append(child.prettyPrint());
-                
+
                 os.write(sb.toString().getBytes());
             } catch (IOException e) {
                 //ignore IOException
@@ -291,11 +291,11 @@
             sb = new StringBuilder();
         }
     }
-    
+
     public int getShrinkTimerThreshold() {
         return SHRINK_TIMER_THRESHOLD;
     }
-    
+
     public LockWaiter getLockWaiter(int slotNum) {
         return pArray.get(slotNum / ChildLockWaiterArrayManager.NUM_OF_SLOTS).getLockWaiter(
                 slotNum % ChildLockWaiterArrayManager.NUM_OF_SLOTS);
@@ -304,7 +304,7 @@
 
 class ChildLockWaiterArrayManager {
     public static final int NUM_OF_SLOTS = 100; //number of LockWaiter objects in 'childArray'.
-//    public static final int NUM_OF_SLOTS = 10; //for unit test 
+    //    public static final int NUM_OF_SLOTS = 10; //for unit test 
 
     private int freeSlotNum;
     private int occupiedSlots; //-1 represents 'deinitialized' state.
@@ -336,13 +336,13 @@
         freeSlotNum = childArray[currentSlot].getNextFreeSlot();
         childArray[currentSlot].setWait(true);
         childArray[currentSlot].setVictim(false);
-        childArray[currentSlot].setWaiterCount((byte)0);
+        childArray[currentSlot].setWaiterCount((byte) 0);
         childArray[currentSlot].setNextWaiterObjId(-1);
         childArray[currentSlot].setNextWaitingResourceObjId(-1);
         childArray[currentSlot].setBeginWaitTime(-1l);
         occupiedSlots++;
         if (LockManager.IS_DEBUG_MODE) {
-            System.out.println(Thread.currentThread().getName()+"  Alloc LockWaiterId("+currentSlot+")");
+            System.out.println(Thread.currentThread().getName() + "  Alloc LockWaiterId(" + currentSlot + ")");
         }
         return currentSlot;
     }
@@ -352,7 +352,7 @@
         freeSlotNum = slotNum;
         occupiedSlots--;
         if (LockManager.IS_DEBUG_MODE) {
-            System.out.println(Thread.currentThread().getName()+"  Dealloc LockWaiterId("+slotNum+")");
+            System.out.println(Thread.currentThread().getName() + "  Dealloc LockWaiterId(" + slotNum + ")");
         }
     }
 
@@ -380,7 +380,7 @@
     public int getFreeSlotNum() {
         return freeSlotNum;
     }
-    
+
     public String prettyPrint() {
         LockWaiter waiter;
         StringBuilder sb = new StringBuilder();
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java
index 2ac0c64..01becdd 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/PrimitiveIntHashMap.java
@@ -21,16 +21,15 @@
  * PrimitiveIntHashMap supports primitive int type as key and value.
  * The hash map grows when the available slots in a bucket are overflowed.
  * Also, the hash map shrinks according to the following shrink policy.
- * : Shrink when the resource under-utilization lasts for a certain threshold time. 
- *   
+ * : Shrink when the resource under-utilization lasts for a certain threshold time.
+ * 
  * @author kisskys
- *
  */
 public class PrimitiveIntHashMap {
     private final int CHILD_BUCKETS; //INIT_NUM_OF_BUCKETS;
     private final int NUM_OF_SLOTS; //NUM_OF_SLOTS_IN_A_BUCKET;
     private final int SHRINK_TIMER_THRESHOLD;
-    
+
     private int occupiedSlots;
     private ArrayList<ChildIntArrayManager> pArray; //parent array
     private int hashMod;
@@ -41,113 +40,113 @@
     private int iterChildIndex;
     private KeyValuePair iterPair;
 
-//    ////////////////////////////////////////////////
-//    // begin of unit test
-//    ////////////////////////////////////////////////
-//
-//    /**
-//     * @param args
-//     */
-//    public static void main(String[] args) {
-//        int i, j;
-//        int k = 0;
-//        int num = 5;
-//        int key[] = new int[500];
-//        int val[] = new int[500];
-//        KeyValuePair pair;
-//        PrimitiveIntHashMap map = new PrimitiveIntHashMap(1<<4, 1<<3, 5);
-//        
-//        for (j=0; j < num; j++) {
-//            
-//            k += 100;
-//            //generate data
-//            for (i=0; i < k; i++) {
-//                key[i] = i;
-//                val[i] = i;
-//            }
-//            
-//            //put data to map
-//            for (i=0; i < k-30; i++) {
-//                map.put(key[i], val[i]);
-//            }
-//            
-//            //put data to map
-//            for (i=0; i < k-30; i++) {
-//                map.put(key[i], val[i]);
-//            }
-//            
-//            map.beginIterate();
-//            pair = map.getNextKeyValue();
-//            i = 0;
-//            while (pair != null) {
-//                i++;
-//                System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
-//                pair = map.getNextKeyValue();
-//            }
-//            
-//            //System.out.println(map.prettyPrint());
-//            
-//            for (i=k-20; i< k; i++) { //skip X70~X79
-//                map.put(key[i], val[i]);
-//            }
-//            
-//            System.out.println(map.prettyPrint());
-//            
-//            //remove data to map
-//            for (i=0; i < k-10; i++) { 
-//                map.remove(key[i]);
-//                try {
-//                    Thread.currentThread().sleep(1);
-//                } catch (InterruptedException e) {
-//                    e.printStackTrace();
-//                }
-//            }
-//            
-//            map.beginIterate();
-//            pair = map.getNextKeyValue();
-//            i = 0;
-//            while (pair != null) {
-//                i++;
-//                System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
-//                pair = map.getNextKeyValue();
-//            }
-//            
-//            //remove data to map
-//            for (i=0; i < k-10; i++) { 
-//                map.remove(key[i]);
-//                try {
-//                    Thread.currentThread().sleep(1);
-//                } catch (InterruptedException e) {
-//                    // TODO Auto-generated catch block
-//                    e.printStackTrace();
-//                }
-//            }
-//            
-//            System.out.println(map.prettyPrint());
-//            
-//            //get data from map
-//            for (i=0; i < k; i++) {
-//                System.out.println(""+i+"=> key:"+ key[i] + ", val:"+val[i] +", result: " + map.get(key[i]));  
-//            }
-//        }
-//        
-//        map.beginIterate();
-//        pair = map.getNextKeyValue();
-//        i = 0;
-//        while (pair != null) {
-//            i++;
-//            System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
-//            pair = map.getNextKeyValue();
-//        }
-//    }
-//
-//    ////////////////////////////////////////////////
-//    // end of unit test
-//    ////////////////////////////////////////////////
-    
+    //    ////////////////////////////////////////////////
+    //    // begin of unit test
+    //    ////////////////////////////////////////////////
+    //
+    //    /**
+    //     * @param args
+    //     */
+    //    public static void main(String[] args) {
+    //        int i, j;
+    //        int k = 0;
+    //        int num = 5;
+    //        int key[] = new int[500];
+    //        int val[] = new int[500];
+    //        KeyValuePair pair;
+    //        PrimitiveIntHashMap map = new PrimitiveIntHashMap(1<<4, 1<<3, 5);
+    //        
+    //        for (j=0; j < num; j++) {
+    //            
+    //            k += 100;
+    //            //generate data
+    //            for (i=0; i < k; i++) {
+    //                key[i] = i;
+    //                val[i] = i;
+    //            }
+    //            
+    //            //put data to map
+    //            for (i=0; i < k-30; i++) {
+    //                map.put(key[i], val[i]);
+    //            }
+    //            
+    //            //put data to map
+    //            for (i=0; i < k-30; i++) {
+    //                map.put(key[i], val[i]);
+    //            }
+    //            
+    //            map.beginIterate();
+    //            pair = map.getNextKeyValue();
+    //            i = 0;
+    //            while (pair != null) {
+    //                i++;
+    //                System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
+    //                pair = map.getNextKeyValue();
+    //            }
+    //            
+    //            //System.out.println(map.prettyPrint());
+    //            
+    //            for (i=k-20; i< k; i++) { //skip X70~X79
+    //                map.put(key[i], val[i]);
+    //            }
+    //            
+    //            System.out.println(map.prettyPrint());
+    //            
+    //            //remove data to map
+    //            for (i=0; i < k-10; i++) { 
+    //                map.remove(key[i]);
+    //                try {
+    //                    Thread.currentThread().sleep(1);
+    //                } catch (InterruptedException e) {
+    //                    e.printStackTrace();
+    //                }
+    //            }
+    //            
+    //            map.beginIterate();
+    //            pair = map.getNextKeyValue();
+    //            i = 0;
+    //            while (pair != null) {
+    //                i++;
+    //                System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
+    //                pair = map.getNextKeyValue();
+    //            }
+    //            
+    //            //remove data to map
+    //            for (i=0; i < k-10; i++) { 
+    //                map.remove(key[i]);
+    //                try {
+    //                    Thread.currentThread().sleep(1);
+    //                } catch (InterruptedException e) {
+    //                    // TODO Auto-generated catch block
+    //                    e.printStackTrace();
+    //                }
+    //            }
+    //            
+    //            System.out.println(map.prettyPrint());
+    //            
+    //            //get data from map
+    //            for (i=0; i < k; i++) {
+    //                System.out.println(""+i+"=> key:"+ key[i] + ", val:"+val[i] +", result: " + map.get(key[i]));  
+    //            }
+    //        }
+    //        
+    //        map.beginIterate();
+    //        pair = map.getNextKeyValue();
+    //        i = 0;
+    //        while (pair != null) {
+    //            i++;
+    //            System.out.println("["+i+"] key:"+ pair.key + ", val:"+ pair.value);
+    //            pair = map.getNextKeyValue();
+    //        }
+    //    }
+    //
+    //    ////////////////////////////////////////////////
+    //    // end of unit test
+    //    ////////////////////////////////////////////////
+
     public PrimitiveIntHashMap() {
-        CHILD_BUCKETS = 1<<9; //INIT_NUM_OF_BUCKETS;
-        NUM_OF_SLOTS = 1<<3; //NUM_OF_SLOTS_IN_A_BUCKET;
+        CHILD_BUCKETS = 1 << 9; //INIT_NUM_OF_BUCKETS;
+        NUM_OF_SLOTS = 1 << 3; //NUM_OF_SLOTS_IN_A_BUCKET;
         SHRINK_TIMER_THRESHOLD = 120000; //2min
         pArray = new ArrayList<ChildIntArrayManager>();
         pArray.add(new ChildIntArrayManager(this));
@@ -155,7 +154,7 @@
         occupiedSlots = 0;
         iterPair = new KeyValuePair();
     }
-    
+
     public PrimitiveIntHashMap(int childBuckets, int numOfSlots, int shrinkTimerThreshold) {
         CHILD_BUCKETS = childBuckets;
         NUM_OF_SLOTS = numOfSlots;
@@ -166,126 +165,127 @@
         occupiedSlots = 0;
         iterPair = new KeyValuePair();
     }
-    
+
     public void put(int key, int value) {
         int growCount = 0;
         int bucketNum = hash(key);
-        ChildIntArrayManager child = pArray.get(bucketNum/CHILD_BUCKETS);
-        while (child.isFull(bucketNum%CHILD_BUCKETS)) {
+        ChildIntArrayManager child = pArray.get(bucketNum / CHILD_BUCKETS);
+        while (child.isFull(bucketNum % CHILD_BUCKETS)) {
             growHashMap();
             bucketNum = hash(key);
-            child = pArray.get(bucketNum/CHILD_BUCKETS);
+            child = pArray.get(bucketNum / CHILD_BUCKETS);
             if (growCount > 2) {
                 //changeHashFunc();
             }
             growCount++;
         }
-        occupiedSlots += child.put(bucketNum%CHILD_BUCKETS, key, value, false);
+        occupiedSlots += child.put(bucketNum % CHILD_BUCKETS, key, value, false);
     }
-    
-    public void upsert (int key, int value) {
+
+    public void upsert(int key, int value) {
         int growCount = 0;
         int bucketNum = hash(key);
-        ChildIntArrayManager child = pArray.get(bucketNum/CHILD_BUCKETS);
-        while (child.isFull(bucketNum%CHILD_BUCKETS)) {
+        ChildIntArrayManager child = pArray.get(bucketNum / CHILD_BUCKETS);
+        while (child.isFull(bucketNum % CHILD_BUCKETS)) {
             growHashMap();
             bucketNum = hash(key);
-            child = pArray.get(bucketNum/CHILD_BUCKETS);
+            child = pArray.get(bucketNum / CHILD_BUCKETS);
             if (growCount > 2) {
                 //changeHashFunc();
             }
             growCount++;
         }
-        occupiedSlots += child.put(bucketNum%CHILD_BUCKETS, key, value, true);
+        occupiedSlots += child.put(bucketNum % CHILD_BUCKETS, key, value, true);
     }
-    
+
     private int hash(int key) {
-        return key%hashMod;
+        return key % hashMod;
     }
-    
+
     private void growHashMap() {
         int size = pArray.size();
-        int i; 
-        
+        int i;
+
         //grow buckets by adding more child
-        for (i=0; i<size; i++) { 
+        for (i = 0; i < size; i++) {
             pArray.add(new ChildIntArrayManager(this));
         }
-        
+
         //increase hashMod
         hashMod *= 2;
-        
+
         //re-hash
-        rehash(0, size, hashMod/2);
+        rehash(0, size, hashMod / 2);
     }
-    
+
     private void shrinkHashMap() {
         int size = pArray.size();
         int i;
-        
+
         //decrease hashMod
         hashMod /= 2;
-        
+
         //re-hash
-        rehash(size/2, size, hashMod*2);
-        
+        rehash(size / 2, size, hashMod * 2);
+
         //shrink buckets by removing child(s)
-        for (i=size-1; i>=size/2;i--) {
+        for (i = size - 1; i >= size / 2; i--) {
             pArray.remove(i);
         }
     }
-    
+
     private void rehash(int begin, int end, int oldHashMod) {
         int i, j, k;
         int key, value;
         ChildIntArrayManager child;
-        
+
         //re-hash
-        for (i=begin; i<end; i++) {
+        for (i = begin; i < end; i++) {
             child = pArray.get(i);
-            for (j=0; j<CHILD_BUCKETS; j++) {
+            for (j = 0; j < CHILD_BUCKETS; j++) {
                 if (child.cArray[j][0] == 0) {
                     continue;
                 }
-                for (k=1; k<NUM_OF_SLOTS; k++) {
+                for (k = 1; k < NUM_OF_SLOTS; k++) {
                     //if the hashValue of the key is different, then re-hash it.
-                    key = child.cArray[j][k*2];
-                    if (hash(key) != key%oldHashMod) {
-                        value = child.cArray[j][k*2+1];
+                    key = child.cArray[j][k * 2];
+                    if (hash(key) != key % oldHashMod) {
+                        value = child.cArray[j][k * 2 + 1];
                         //remove existing key and value
                         //Notice! To avoid bucket iteration, child.remove() is not used.
-                        child.cArray[j][k*2] = -1;
+                        child.cArray[j][k * 2] = -1;
                         child.cArray[j][0]--;
                         //re-hash it 
-                        pArray.get(hash(key)/CHILD_BUCKETS).put(hash(key)%CHILD_BUCKETS, key, value, false);
+                        pArray.get(hash(key) / CHILD_BUCKETS).put(hash(key) % CHILD_BUCKETS, key, value, false);
                     }
                 }
             }
         }
     }
-    
-//    private void changeHashFunc() {
-//        //TODO need to implement.
-//        throw new UnsupportedOperationException("changeHashFunc() not implemented");
-//    }
-    
+
+    //    private void changeHashFunc() {
+    //        //TODO need to implement.
+    //        throw new UnsupportedOperationException("changeHashFunc() not implemented");
+    //    }
+
     public int get(int key) {
         int bucketNum = hash(key);
-        return pArray.get(bucketNum/CHILD_BUCKETS).get(bucketNum%CHILD_BUCKETS, key);
+        return pArray.get(bucketNum / CHILD_BUCKETS).get(bucketNum % CHILD_BUCKETS, key);
     }
-    
+
     public void remove(int key) {
         int bucketNum = hash(key);
-        occupiedSlots -= pArray.get(bucketNum/CHILD_BUCKETS).remove(bucketNum%CHILD_BUCKETS, key);
-        
+        occupiedSlots -= pArray.get(bucketNum / CHILD_BUCKETS).remove(bucketNum % CHILD_BUCKETS, key);
+
         if (needShrink()) {
             shrinkHashMap();
         }
     }
-    
+
     /**
      * Shrink policy:
-     * Shrink when the resource under-utilization lasts for a certain amount of time. 
+     * Shrink when the resource under-utilization lasts for a certain amount of time.
+     * 
      * @return
      */
     private boolean needShrink() {
@@ -294,7 +294,7 @@
         if (usedSlots == 0) {
             usedSlots = 1;
         }
-        if (size > 1 && size*CHILD_BUCKETS*NUM_OF_SLOTS/usedSlots >= 3 && isSafeToShrink()) {
+        if (size > 1 && size * CHILD_BUCKETS * NUM_OF_SLOTS / usedSlots >= 3 && isSafeToShrink()) {
             if (isShrinkTimerOn) {
                 if (System.currentTimeMillis() - shrinkTimer >= SHRINK_TIMER_THRESHOLD) {
                     isShrinkTimerOn = false;
@@ -311,7 +311,7 @@
         }
         return false;
     }
-    
+
     private boolean isSafeToShrink() {
         int i, j;
         int size = pArray.size();
@@ -319,50 +319,51 @@
         //[HChild(Head Child):0 and TChild(Tail Child): 4], [1(H),5(T)], [2(H),6(T)] and so on. 
         //When the map shrinks, the sum of occupied slots in H/TChild should not exceed the NUM_OF_SLOTS-1.
         //Then it is safe to shrink. Otherwise, unsafe.
-        ChildIntArrayManager HChild, TChild; 
-        
-        for (i=0; i<size/2; i++){
+        ChildIntArrayManager HChild, TChild;
+
+        for (i = 0; i < size / 2; i++) {
             HChild = pArray.get(i);
-            TChild = pArray.get(size/2+i);
-            for (j=0; j<CHILD_BUCKETS; j++) {
-                if (HChild.cArray[j][0] + TChild.cArray[j][0] > NUM_OF_SLOTS-1) {
+            TChild = pArray.get(size / 2 + i);
+            for (j = 0; j < CHILD_BUCKETS; j++) {
+                if (HChild.cArray[j][0] + TChild.cArray[j][0] > NUM_OF_SLOTS - 1) {
                     return false;
                 }
             }
         }
         return true;
     }
-    
+
     public String prettyPrint() {
         StringBuilder s = new StringBuilder("\n########### PrimitiveIntHashMap Status #############\n");
         ChildIntArrayManager child;
         int i, j, k;
         int size = pArray.size();
-        for (i=0; i<size;i++) {
+        for (i = 0; i < size; i++) {
             child = pArray.get(i);
             s.append("child[").append(i).append("]\n");
-            for (j=0; j<CHILD_BUCKETS;j++) {
+            for (j = 0; j < CHILD_BUCKETS; j++) {
                 s.append(j).append(" ");
-                for (k=0; k<NUM_OF_SLOTS;k++) {
-                    s.append("[").append(child.cArray[j][k*2]).append(",").append(child.cArray[j][k*2+1]).append("] ");
+                for (k = 0; k < NUM_OF_SLOTS; k++) {
+                    s.append("[").append(child.cArray[j][k * 2]).append(",").append(child.cArray[j][k * 2 + 1])
+                            .append("] ");
                 }
                 s.append("\n");
             }
         }
         return s.toString();
     }
-    
+
     public int getNumOfSlots() {
         return NUM_OF_SLOTS;
     }
-    
+
     public int getNumOfChildBuckets() {
         return CHILD_BUCKETS;
     }
-    
+
     public void clear(boolean needShrink) {
         int size = pArray.size();
-        for (int i=size-1; i >= 0; i--) {
+        for (int i = size - 1; i >= 0; i--) {
             if (needShrink && i != 0) {
                 pArray.remove(i);
             } else {
@@ -371,29 +372,29 @@
         }
         occupiedSlots = 0;
     }
-    
+
     ///////////////////////////////////////
     // iterate method
     ///////////////////////////////////////
-    
+
     public void beginIterate() {
         iterChildIndex = 0;
         iterBucketIndex = 0;
         iterSlotIndex = 1;
     }
-    
+
     public KeyValuePair getNextKeyValue() {
         for (; iterChildIndex < pArray.size(); iterChildIndex++, iterBucketIndex = 0) {
             for (; iterBucketIndex < CHILD_BUCKETS; iterBucketIndex++, iterSlotIndex = 1) {
-                if (iterSlotIndex ==1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
+                if (iterSlotIndex == 1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
                     continue;
                 }
                 for (; iterSlotIndex < NUM_OF_SLOTS; iterSlotIndex++) {
-                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2];
+                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex * 2];
                     if (iterPair.key == -1) {
                         continue;
                     }
-                    iterPair.value = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2+1];
+                    iterPair.value = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex * 2 + 1];
                     iterSlotIndex++;
                     return iterPair;
                 }
@@ -401,15 +402,15 @@
         }
         return null;
     }
-    
+
     public int getNextKey() {
         for (; iterChildIndex < pArray.size(); iterChildIndex++, iterBucketIndex = 0) {
             for (; iterBucketIndex < CHILD_BUCKETS; iterBucketIndex++, iterSlotIndex = 1) {
-                if (iterSlotIndex ==1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
+                if (iterSlotIndex == 1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
                     continue;
                 }
                 for (; iterSlotIndex < NUM_OF_SLOTS; iterSlotIndex++) {
-                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2];
+                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex * 2];
                     if (iterPair.key == -1) {
                         continue;
                     }
@@ -420,19 +421,19 @@
         }
         return -1;
     }
-    
+
     public int getNextValue() {
         for (; iterChildIndex < pArray.size(); iterChildIndex++, iterBucketIndex = 0) {
             for (; iterBucketIndex < CHILD_BUCKETS; iterBucketIndex++, iterSlotIndex = 1) {
-                if (iterSlotIndex ==1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
+                if (iterSlotIndex == 1 && pArray.get(iterChildIndex).cArray[iterBucketIndex][0] == 0) {
                     continue;
                 }
                 for (; iterSlotIndex < NUM_OF_SLOTS; iterSlotIndex++) {
-                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2];
+                    iterPair.key = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex * 2];
                     if (iterPair.key == -1) {
                         continue;
                     }
-                    iterPair.value = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex*2+1];
+                    iterPair.value = pArray.get(iterChildIndex).cArray[iterBucketIndex][iterSlotIndex * 2 + 1];
                     iterSlotIndex++;
                     return iterPair.value;
                 }
@@ -440,23 +441,23 @@
         }
         return -1;
     }
-    
+
     public static class KeyValuePair {
         public int key;
-        public int value; 
+        public int value;
     }
 }
 
 class ChildIntArrayManager {
-    private final int DIM1_SIZE; 
-    private final int DIM2_SIZE; 
+    private final int DIM1_SIZE;
+    private final int DIM2_SIZE;
     private final int NUM_OF_SLOTS;
     public int[][] cArray; //child array
-    
+
     public ChildIntArrayManager(PrimitiveIntHashMap parentHashMap) {
         DIM1_SIZE = parentHashMap.getNumOfChildBuckets();
         DIM2_SIZE = parentHashMap.getNumOfSlots() * 2; //2: Array of [key, value] pair
-        NUM_OF_SLOTS = parentHashMap.getNumOfSlots() ;
+        NUM_OF_SLOTS = parentHashMap.getNumOfSlots();
         initialize();
     }
 
@@ -468,11 +469,11 @@
             //cArray[i][1] is not used.
             cArray[i][0] = 0;
             for (j = 1; j < NUM_OF_SLOTS; j++) {
-                cArray[i][j*2] = -1; // -1 represent that the slot is empty
+                cArray[i][j * 2] = -1; // -1 represent that the slot is empty
             }
         }
     }
-    
+
     public void clear() {
         int i, j;
         for (i = 0; i < DIM1_SIZE; i++) {
@@ -483,23 +484,23 @@
             }
             cArray[i][0] = 0;
             for (j = 1; j < NUM_OF_SLOTS; j++) {
-                cArray[i][j*2] = -1; // -1 represent that the slot is empty
+                cArray[i][j * 2] = -1; // -1 represent that the slot is empty
             }
         }
     }
-    
+
     public void deinitialize() {
         cArray = null;
     }
-    
+
     public void allocate() {
         initialize();
     }
 
     public boolean isFull(int bucketNum) {
-        return cArray[bucketNum][0] == NUM_OF_SLOTS-1;
+        return cArray[bucketNum][0] == NUM_OF_SLOTS - 1;
     }
-    
+
     public boolean isEmpty(int bucketNum) {
         return cArray[bucketNum][0] == 0;
     }
@@ -514,11 +515,11 @@
      * @param key
      * @param value
      * @param isUpsert
-     * @return 1 for new insertion, 0 for key duplication 
+     * @return 1 for new insertion, 0 for key duplication
      */
     public int put(int bucketNum, int key, int value, boolean isUpsert) {
         int i;
-        int emptySlot=-1;
+        int emptySlot = -1;
 
         if (cArray[bucketNum][0] == 0) {
             cArray[bucketNum][2] = key;
@@ -528,65 +529,63 @@
         }
 
         for (i = 1; i < NUM_OF_SLOTS; i++) {
-            if (cArray[bucketNum][i*2] == key) {
+            if (cArray[bucketNum][i * 2] == key) {
                 if (isUpsert) {
-                    cArray[bucketNum][i*2+1] = value;
+                    cArray[bucketNum][i * 2 + 1] = value;
                 }
                 return 0;
-            }
-            else if (cArray[bucketNum][i*2] == -1) {
+            } else if (cArray[bucketNum][i * 2] == -1) {
                 emptySlot = i;
             }
         }
-        
+
         if (emptySlot == -1) {
             throw new UnsupportedOperationException("error");
         }
-        
-        cArray[bucketNum][emptySlot*2] = key;
-        cArray[bucketNum][emptySlot*2+1] = value;
+
+        cArray[bucketNum][emptySlot * 2] = key;
+        cArray[bucketNum][emptySlot * 2 + 1] = value;
         cArray[bucketNum][0]++;
         return 1;
     }
 
     public int get(int bucketNum, int key) {
         int i;
-        
+
         if (cArray[bucketNum][0] == 0) {
             return -1;
         }
 
         for (i = 1; i < NUM_OF_SLOTS; i++) {
-            if (cArray[bucketNum][i*2] == key) {
-                return cArray[bucketNum][i*2+1];
+            if (cArray[bucketNum][i * 2] == key) {
+                return cArray[bucketNum][i * 2 + 1];
             }
         }
         return -1;
     }
-    
+
     /**
      * remove key if it exists. Otherwise, ignore it.
+     * 
      * @param bucketNum
      * @param key
-     * @return 1 for success, 0 if the key doesn't exist 
+     * @return 1 for success, 0 if the key doesn't exist
      */
     public int remove(int bucketNum, int key) {
         int i;
-        
+
         if (cArray[bucketNum][0] == 0) {
             return 0;
         }
 
         for (i = 1; i < NUM_OF_SLOTS; i++) {
-            if (cArray[bucketNum][i*2] == key) {
-                cArray[bucketNum][i*2] = -1;
+            if (cArray[bucketNum][i * 2] == key) {
+                cArray[bucketNum][i * 2] = -1;
                 cArray[bucketNum][0]--;
                 return 1;
             }
         }
-        
+
         return 0;
     }
 }
-
-
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
index 419438f..933afcd 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogManager.java
@@ -134,7 +134,7 @@
         appendPage.append(logRecord, appendLSN);
         appendLSN += logRecord.getLogSize();
     }
-    
+
     private void getAndInitNewPage() {
         appendPage = null;
         while (appendPage == null) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogReader.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogReader.java
index 9dc966c..778d24b 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogReader.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogReader.java
@@ -39,7 +39,7 @@
     private long bufferBeginLSN;
     private long fileBeginLSN;
     private FileChannel fileChannel;
-    
+
     private enum ReturnState {
         FLUSH,
         EOF
@@ -64,7 +64,7 @@
         getFileChannel();
         readPage();
     }
-    
+
     //for scanning
     @Override
     public ILogRecord next() throws ACIDException {
@@ -81,7 +81,7 @@
         readLSN += logRecord.getLogSize();
         return logRecord;
     }
-    
+
     private ReturnState waitForFlushOrReturnIfEOF() {
         synchronized (flushLSN) {
             while (readLSN >= flushLSN.get()) {
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java
index f9e9304..1716cfb 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/LogType.java
@@ -26,7 +26,6 @@
     private static final String STRING_ABORT = "ABORT";
     private static final String STRING_INVALID_LOG_TYPE = "INVALID_LOG_TYPE";
 
-
     public static String toString(byte logType) {
         switch (logType) {
             case LogType.UPDATE:
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PrimaryKeyTupleReference.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PrimaryKeyTupleReference.java
index d45b209..7acc000 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PrimaryKeyTupleReference.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/logging/PrimaryKeyTupleReference.java
@@ -12,7 +12,7 @@
         this.start = start;
         this.length = length;
     }
-    
+
     @Override
     public int getFieldCount() {
         return 1;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java
index f2cb22a..49cb500 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/CheckpointObject.java
@@ -19,7 +19,7 @@
 public class CheckpointObject implements Serializable, Comparable<CheckpointObject> {
 
     private static final long serialVersionUID = 1L;
- 
+
     private final long checkpointLsn;
     private final long minMCTFirstLsn;
     private final int maxJobId;
@@ -31,7 +31,7 @@
         this.maxJobId = maxJobId;
         this.timeStamp = timeStamp;
     }
-    
+
     public long getCheckpointLsn() {
         return checkpointLsn;
     }
@@ -50,18 +50,18 @@
 
     @Override
     public int compareTo(CheckpointObject checkpointObject) {
-        long compareTimeStamp = checkpointObject.getTimeStamp(); 
-        
+        long compareTimeStamp = checkpointObject.getTimeStamp();
+
         //decending order
         long diff = compareTimeStamp - this.timeStamp;
         if (diff > 0) {
             return 1;
-        } else if (diff == 0){
+        } else if (diff == 0) {
             return 0;
         } else {
             return -1;
         }
- 
+
         //ascending order
         //return this.timeStamp - compareTimeStamp;
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
index 95ee767..997ac90 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/recovery/RecoveryManager.java
@@ -340,8 +340,9 @@
 
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info("[RecoveryMgr] recovery is completed.");
-            LOGGER.info("[RecoveryMgr's recovery log count] update/entityCommit/jobCommit/abort/redo = " + updateLogCount + "/"
-                    + entityCommitLogCount + "/" + jobCommitLogCount + "/" + abortLogCount + "/" + redoCount);
+            LOGGER.info("[RecoveryMgr's recovery log count] update/entityCommit/jobCommit/abort/redo = "
+                    + updateLogCount + "/" + entityCommitLogCount + "/" + jobCommitLogCount + "/" + abortLogCount + "/"
+                    + redoCount);
         }
     }
 
@@ -666,8 +667,8 @@
         logReader.close();
         if (LOGGER.isLoggable(Level.INFO)) {
             LOGGER.info(" undone loser transaction's effect");
-            LOGGER.info("[RecoveryManager's rollback log count] update/entityCommit/undo:" + updateLogCount + "/" + entityCommitLogCount + "/"
-                    + undoCount);
+            LOGGER.info("[RecoveryManager's rollback log count] update/entityCommit/undo:" + updateLogCount + "/"
+                    + entityCommitLogCount + "/" + undoCount);
         }
     }
 
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java
index c6f245b..8a3d299 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/DatasetIdFactory.java
@@ -18,21 +18,21 @@
 
 public class DatasetIdFactory {
     private static AtomicInteger id = new AtomicInteger();
-    private static boolean isInitialized = false; 
-    
+    private static boolean isInitialized = false;
+
     public static boolean isInitialized() {
         return isInitialized;
     }
-    
+
     public static void initialize(int initialId) {
-    	id.set(initialId);
-    	isInitialized = true;
+        id.set(initialId);
+        isInitialized = true;
     }
 
     public static int generateDatasetId() {
         return id.incrementAndGet();
     }
-    
+
     public static int getMostRecentDatasetId() {
         return id.get();
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java
index 6ad4dc7..0b915c1 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/FieldsHashValueGenerator.java
@@ -28,7 +28,7 @@
                     tuple.getFieldStart(primaryKeyFieldIdx), tuple.getFieldLength(primaryKeyFieldIdx));
             h = h * 31 + fh;
             if (h < 0) {
-                h = h*(-1);
+                h = h * (-1);
             }
         }
         return h;
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
index 019bdfd..ea912c0 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/JobIdFactory.java
@@ -27,7 +27,7 @@
     public static JobId generateJobId() {
         return new JobId(Id.incrementAndGet());
     }
-    
+
     public static void initJobId(int id) {
         Id.set(id);
     }
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java
index 9eb7bbd..545d5c0 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/MutableResourceId.java
@@ -14,7 +14,7 @@
  */
 package edu.uci.ics.asterix.transaction.management.service.transaction;
 
-public class MutableResourceId{
+public class MutableResourceId {
     long id;
 
     public MutableResourceId(long id) {
@@ -31,7 +31,7 @@
 
     @Override
     public int hashCode() {
-        return (int)id;
+        return (int) id;
     }
 
     @Override
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
index 06f5399..664a4f1 100644
--- a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/transaction/TransactionContext.java
@@ -43,203 +43,197 @@
  */
 public class TransactionContext implements ITransactionContext, Serializable {
 
-	private static final long serialVersionUID = -6105616785783310111L;
-	private TransactionSubsystem transactionSubsystem;
+    private static final long serialVersionUID = -6105616785783310111L;
+    private TransactionSubsystem transactionSubsystem;
 
-	// jobId is set once and read concurrently.
-	private final JobId jobId;
+    // jobId is set once and read concurrently.
+    private final JobId jobId;
 
-	// There are no concurrent writers on both firstLSN and lastLSN
-	// since both values are updated by serialized log appenders.
-	// But readers and writers can be different threads,
-	// so both LSNs are atomic variables in order to be read and written
-	// atomically.
-	private AtomicLong firstLSN;
-	private AtomicLong lastLSN;
+    // There are no concurrent writers on both firstLSN and lastLSN
+    // since both values are updated by serialized log appenders.
+    // But readers and writers can be different threads,
+    // so both LSNs are atomic variables in order to be read and written
+    // atomically.
+    private AtomicLong firstLSN;
+    private AtomicLong lastLSN;
 
-	// txnState is read and written concurrently.
-	private AtomicInteger txnState;
+    // txnState is read and written concurrently.
+    private AtomicInteger txnState;
 
-	// isTimeout is read and written under the lockMgr's tableLatch
-	// Thus, no other synchronization is required separately.
-	private boolean isTimeout;
+    // isTimeout is read and written under the lockMgr's tableLatch
+    // Thus, no other synchronization is required separately.
+    private boolean isTimeout;
 
-	// isWriteTxn can be set concurrently by multiple threads.
-	private AtomicBoolean isWriteTxn;
+    // isWriteTxn can be set concurrently by multiple threads.
+    private AtomicBoolean isWriteTxn;
 
-	// isMetadataTxn is accessed by a single thread since the metadata is not
-	// partitioned
-	private boolean isMetadataTxn;
+    // isMetadataTxn is accessed by a single thread since the metadata is not
+    // partitioned
+    private boolean isMetadataTxn;
 
-	// indexMap is concurrently accessed by multiple threads,
-	// so those threads are synchronized on indexMap object itself
-	private Map<MutableLong, AbstractLSMIOOperationCallback> indexMap;
+    // indexMap is concurrently accessed by multiple threads,
+    // so those threads are synchronized on indexMap object itself
+    private Map<MutableLong, AbstractLSMIOOperationCallback> indexMap;
 
-	// TODO: fix ComponentLSNs' issues.
-	// primaryIndex, primaryIndexCallback, and primaryIndexOptracker will be
-	// modified accordingly
-	// when the issues of componentLSNs are fixed.
-	private ILSMIndex primaryIndex;
-	private PrimaryIndexModificationOperationCallback primaryIndexCallback;
-	private PrimaryIndexOperationTracker primaryIndexOpTracker;
+    // TODO: fix ComponentLSNs' issues.
+    // primaryIndex, primaryIndexCallback, and primaryIndexOptracker will be
+    // modified accordingly
+    // when the issues of componentLSNs are fixed.
+    private ILSMIndex primaryIndex;
+    private PrimaryIndexModificationOperationCallback primaryIndexCallback;
+    private PrimaryIndexOperationTracker primaryIndexOpTracker;
 
-	// The following three variables are used as temporary variables in order to
-	// avoid object creations.
-	// Those are used in synchronized methods.
-	private MutableLong tempResourceIdForRegister;
-	private MutableLong tempResourceIdForSetLSN;
-	private LogRecord logRecord;
+    // The following three variables are used as temporary variables in order to
+    // avoid object creations.
+    // Those are used in synchronized methods.
+    private MutableLong tempResourceIdForRegister;
+    private MutableLong tempResourceIdForSetLSN;
+    private LogRecord logRecord;
 
-	// TODO: implement transactionContext pool in order to avoid object
-	// creations.
-	// also, the pool can throttle the number of concurrent active jobs at every
-	// moment.
-	public TransactionContext(JobId jobId,
-			TransactionSubsystem transactionSubsystem) throws ACIDException {
-		this.jobId = jobId;
-		this.transactionSubsystem = transactionSubsystem;
-		firstLSN = new AtomicLong(-1);
-		lastLSN = new AtomicLong(-1);
-		txnState = new AtomicInteger(ITransactionManager.ACTIVE);
-		isTimeout = false;
-		isWriteTxn = new AtomicBoolean(false);
-		isMetadataTxn = false;
-		indexMap = new HashMap<MutableLong, AbstractLSMIOOperationCallback>();
-		primaryIndex = null;
-		tempResourceIdForRegister = new MutableLong();
-		tempResourceIdForSetLSN = new MutableLong();
-		logRecord = new LogRecord();
-	}
+    // TODO: implement transactionContext pool in order to avoid object
+    // creations.
+    // also, the pool can throttle the number of concurrent active jobs at every
+    // moment.
+    public TransactionContext(JobId jobId, TransactionSubsystem transactionSubsystem) throws ACIDException {
+        this.jobId = jobId;
+        this.transactionSubsystem = transactionSubsystem;
+        firstLSN = new AtomicLong(-1);
+        lastLSN = new AtomicLong(-1);
+        txnState = new AtomicInteger(ITransactionManager.ACTIVE);
+        isTimeout = false;
+        isWriteTxn = new AtomicBoolean(false);
+        isMetadataTxn = false;
+        indexMap = new HashMap<MutableLong, AbstractLSMIOOperationCallback>();
+        primaryIndex = null;
+        tempResourceIdForRegister = new MutableLong();
+        tempResourceIdForSetLSN = new MutableLong();
+        logRecord = new LogRecord();
+    }
 
-	public void registerIndexAndCallback(long resourceId, ILSMIndex index,
-			AbstractOperationCallback callback, boolean isPrimaryIndex) {
-		synchronized (indexMap) {
-			if (isPrimaryIndex && primaryIndex == null) {
-				primaryIndex = index;
-				primaryIndexCallback = (PrimaryIndexModificationOperationCallback) callback;
-				primaryIndexOpTracker = (PrimaryIndexOperationTracker) index
-						.getOperationTracker();
-			}
-			tempResourceIdForRegister.set(resourceId);
-			if (!indexMap.containsKey(tempResourceIdForRegister)) {
-				indexMap.put(new MutableLong(resourceId),
-						((AbstractLSMIOOperationCallback) index
-								.getIOOperationCallback()));
-			}
-		}
-	}
+    public void registerIndexAndCallback(long resourceId, ILSMIndex index, AbstractOperationCallback callback,
+            boolean isPrimaryIndex) {
+        synchronized (indexMap) {
+            if (isPrimaryIndex && primaryIndex == null) {
+                primaryIndex = index;
+                primaryIndexCallback = (PrimaryIndexModificationOperationCallback) callback;
+                primaryIndexOpTracker = (PrimaryIndexOperationTracker) index.getOperationTracker();
+            }
+            tempResourceIdForRegister.set(resourceId);
+            if (!indexMap.containsKey(tempResourceIdForRegister)) {
+                indexMap.put(new MutableLong(resourceId),
+                        ((AbstractLSMIOOperationCallback) index.getIOOperationCallback()));
+            }
+        }
+    }
 
-	// [Notice]
-	// This method is called sequentially by the LogAppender threads.
-	// However, the indexMap is concurrently read and modified through this
-	// method and registerIndexAndCallback()
-	@Override
-	public void setLastLSN(long resourceId, long LSN) {
-		synchronized (indexMap) {
-			firstLSN.compareAndSet(-1, LSN);
-			lastLSN.set(Math.max(lastLSN.get(), LSN));
-			if (resourceId != -1) {
-				// Non-update log's resourceId is -1.
-				tempResourceIdForSetLSN.set(resourceId);
-				AbstractLSMIOOperationCallback ioOpCallback = indexMap
-						.get(tempResourceIdForSetLSN);
-				ioOpCallback.updateLastLSN(LSN);
-			}
-		}
-	}
+    // [Notice]
+    // This method is called sequentially by the LogAppender threads.
+    // However, the indexMap is concurrently read and modified through this
+    // method and registerIndexAndCallback()
+    @Override
+    public void setLastLSN(long resourceId, long LSN) {
+        synchronized (indexMap) {
+            firstLSN.compareAndSet(-1, LSN);
+            lastLSN.set(Math.max(lastLSN.get(), LSN));
+            if (resourceId != -1) {
+                // Non-update log's resourceId is -1.
+                tempResourceIdForSetLSN.set(resourceId);
+                AbstractLSMIOOperationCallback ioOpCallback = indexMap.get(tempResourceIdForSetLSN);
+                ioOpCallback.updateLastLSN(LSN);
+            }
+        }
+    }
 
-	@Override
-	public void notifyOptracker(boolean isJobLevelCommit) {
-		try {
-			if (isJobLevelCommit && isMetadataTxn) {
-				primaryIndexOpTracker.exclusiveJobCommitted();
-			} else if (!isJobLevelCommit) {
-				primaryIndexOpTracker.completeOperation(null,
-						LSMOperationType.MODIFICATION, null,
-						primaryIndexCallback);
-			}
-		} catch (HyracksDataException e) {
-			throw new IllegalStateException(e);
-		}
-	}
+    @Override
+    public void notifyOptracker(boolean isJobLevelCommit) {
+        try {
+            if (isJobLevelCommit && isMetadataTxn) {
+                primaryIndexOpTracker.exclusiveJobCommitted();
+            } else if (!isJobLevelCommit) {
+                primaryIndexOpTracker
+                        .completeOperation(null, LSMOperationType.MODIFICATION, null, primaryIndexCallback);
+            }
+        } catch (HyracksDataException e) {
+            throw new IllegalStateException(e);
+        }
+    }
 
-	public void setWriteTxn(boolean isWriteTxn) {
-		this.isWriteTxn.set(isWriteTxn);
-	}
+    public void setWriteTxn(boolean isWriteTxn) {
+        this.isWriteTxn.set(isWriteTxn);
+    }
 
-	public boolean isWriteTxn() {
-		return isWriteTxn.get();
-	}
+    public boolean isWriteTxn() {
+        return isWriteTxn.get();
+    }
 
-	@Override
-	public long getFirstLSN() {
-		return firstLSN.get();
-	}
+    @Override
+    public long getFirstLSN() {
+        return firstLSN.get();
+    }
 
-	@Override
-	public long getLastLSN() {
-		return lastLSN.get();
-	}
+    @Override
+    public long getLastLSN() {
+        return lastLSN.get();
+    }
 
-	public JobId getJobId() {
-		return jobId;
-	}
+    public JobId getJobId() {
+        return jobId;
+    }
 
-	public void setTimeout(boolean isTimeout) {
-		this.isTimeout = isTimeout;
-	}
+    public void setTimeout(boolean isTimeout) {
+        this.isTimeout = isTimeout;
+    }
 
-	public boolean isTimeout() {
-		return isTimeout;
-	}
+    public boolean isTimeout() {
+        return isTimeout;
+    }
 
-	public void setTxnState(int txnState) {
-		this.txnState.set(txnState);
-	}
+    public void setTxnState(int txnState) {
+        this.txnState.set(txnState);
+    }
 
-	public int getTxnState() {
-		return txnState.get();
-	}
+    public int getTxnState() {
+        return txnState.get();
+    }
 
-	@Override
-	public int hashCode() {
-		return jobId.getId();
-	}
+    @Override
+    public int hashCode() {
+        return jobId.getId();
+    }
 
-	@Override
-	public boolean equals(Object o) {
-		return (o == this);
-	}
+    @Override
+    public boolean equals(Object o) {
+        return (o == this);
+    }
 
-	@Override
-	public void setMetadataTransaction(boolean isMetadataTxn) {
-		this.isMetadataTxn = isMetadataTxn;
-	}
+    @Override
+    public void setMetadataTransaction(boolean isMetadataTxn) {
+        this.isMetadataTxn = isMetadataTxn;
+    }
 
-	@Override
-	public boolean isMetadataTransaction() {
-		return isMetadataTxn;
-	}
+    @Override
+    public boolean isMetadataTransaction() {
+        return isMetadataTxn;
+    }
 
-	public String prettyPrint() {
-		StringBuilder sb = new StringBuilder();
-		sb.append("\n" + jobId + "\n");
-		sb.append("isWriteTxn: " + isWriteTxn + "\n");
-		sb.append("firstLSN: " + firstLSN.get() + "\n");
-		sb.append("lastLSN: " + lastLSN.get() + "\n");
-		sb.append("TransactionState: " + txnState + "\n");
-		sb.append("isTimeout: " + isTimeout + "\n");
-		return sb.toString();
-	}
+    public String prettyPrint() {
+        StringBuilder sb = new StringBuilder();
+        sb.append("\n" + jobId + "\n");
+        sb.append("isWriteTxn: " + isWriteTxn + "\n");
+        sb.append("firstLSN: " + firstLSN.get() + "\n");
+        sb.append("lastLSN: " + lastLSN.get() + "\n");
+        sb.append("TransactionState: " + txnState + "\n");
+        sb.append("isTimeout: " + isTimeout + "\n");
+        return sb.toString();
+    }
 
-	public LogRecord getLogRecord() {
-		return logRecord;
-	}
+    public LogRecord getLogRecord() {
+        return logRecord;
+    }
 
-	public void cleanupForAbort() {
-		if (primaryIndexOpTracker != null) {
-			primaryIndexOpTracker
-					.cleanupNumActiveOperationsForAbortedJob(primaryIndexCallback);
-		}
-	}
+    public void cleanupForAbort() {
+        if (primaryIndexOpTracker != null) {
+            primaryIndexOpTracker.cleanupNumActiveOperationsForAbortedJob(primaryIndexCallback);
+        }
+    }
 }