Added a simple range partition computer to partition generated data onto nc's.
git-svn-id: https://hyracks.googlecode.com/svn/branches/hyracks_spilling_groupby_perf@426 123451ca-8445-de46-9d55-352943316053
diff --git a/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/benchmarking/TupleRangePartitionComputerFactory.java b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/benchmarking/TupleRangePartitionComputerFactory.java
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+++ b/hyracks-dataflow-std/src/main/java/edu/uci/ics/hyracks/dataflow/std/benchmarking/TupleRangePartitionComputerFactory.java
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+/*
+ * Copyright 2009-2010 by The Regents of the University of California
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * you may obtain a copy of the License from
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package edu.uci.ics.hyracks.dataflow.std.benchmarking;
+
+import edu.uci.ics.hyracks.api.comm.IFrameTupleAccessor;
+import edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputer;
+import edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputerFactory;
+import edu.uci.ics.hyracks.api.exceptions.HyracksDataException;
+
+public class TupleRangePartitionComputerFactory implements ITuplePartitionComputerFactory {
+
+ private static final long serialVersionUID = 1L;
+
+ private int tupleCount;
+
+ public TupleRangePartitionComputerFactory(){
+ tupleCount = 0;
+ }
+
+ /* (non-Javadoc)
+ * @see edu.uci.ics.hyracks.api.dataflow.value.ITuplePartitionComputerFactory#createPartitioner()
+ */
+ @Override
+ public ITuplePartitionComputer createPartitioner() {
+ return new ITuplePartitionComputer() {
+
+ @Override
+ public int partition(IFrameTupleAccessor accessor, int tIndex, int nParts) throws HyracksDataException {
+ return tupleCount++ % nParts;
+ }
+ };
+ }
+
+}