diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java
index 7a4a33b..eee344f 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/app/nc/NCAppRuntimeContext.java
@@ -120,8 +120,8 @@
 import org.apache.hyracks.storage.common.buffercache.IDiskCachedPageAllocator;
 import org.apache.hyracks.storage.common.buffercache.IPageCleanerPolicy;
 import org.apache.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.storage.common.file.FileMapManager;
 import org.apache.hyracks.storage.common.file.ILocalResourceRepositoryFactory;
@@ -212,7 +212,7 @@
             boolean initialRun) throws IOException {
         ioManager = getServiceContext().getIoManager();
         IDiskCachedPageAllocator pageAllocator = DefaultDiskCachedPageAllocator.INSTANCE;
-        IBufferCacheReadContext defaultContext = DefaultBufferCachePageOperationContextProvider.DEFAULT;
+        IBufferCacheReadContext defaultContext = DefaultBufferCacheReadContextProvider.DEFAULT;
         if (isCloudDeployment()) {
             persistenceIOManager =
                     CloudManagerProvider.createIOManager(cloudProperties, ioManager, namespacePathResolver);
diff --git a/asterixdb/asterix-column/src/main/java/org/apache/asterix/column/bytes/stream/out/MultiPersistentBufferBytesOutputStream.java b/asterixdb/asterix-column/src/main/java/org/apache/asterix/column/bytes/stream/out/MultiPersistentBufferBytesOutputStream.java
index c910131..90aacc7 100644
--- a/asterixdb/asterix-column/src/main/java/org/apache/asterix/column/bytes/stream/out/MultiPersistentBufferBytesOutputStream.java
+++ b/asterixdb/asterix-column/src/main/java/org/apache/asterix/column/bytes/stream/out/MultiPersistentBufferBytesOutputStream.java
@@ -38,6 +38,12 @@
     @Override
     protected void preReset() throws HyracksDataException {
         if (allocatedBytes > 0) {
+            /*
+             * Ensure limit is set to current position and position is set to 0. This to ensure no unrelated bytes are
+             * persisted to disk. Unrelated bytes are bytes that were in the ByteBuffer (when the column writer
+             * confiscated it from the buffer cache) but those byte do not belong to the column that to be written.
+             */
+            currentBuf.flip();
             //Persist all buffers before resetting the stream
             multiPageOpRef.getValue().persist();
             allocatedBytes = 0;
diff --git a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/GlobalVirtualBufferCache.java b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/GlobalVirtualBufferCache.java
index 20a1260..a4663ed 100644
--- a/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/GlobalVirtualBufferCache.java
+++ b/asterixdb/asterix-common/src/main/java/org/apache/asterix/common/context/GlobalVirtualBufferCache.java
@@ -18,7 +18,7 @@
  */
 package org.apache.asterix.common.context;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.DEFAULT;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.DEFAULT;
 
 import java.io.IOException;
 import java.io.OutputStream;
@@ -51,8 +51,8 @@
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteFailureCallback;
 import org.apache.hyracks.storage.common.buffercache.VirtualPage;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
 import org.apache.hyracks.util.ExitUtil;
diff --git a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/ContextUtil.java b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/BufferCacheCloudReadContextUtil.java
similarity index 96%
rename from hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/ContextUtil.java
rename to hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/BufferCacheCloudReadContextUtil.java
index dfcd6f1..5674797 100644
--- a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/ContextUtil.java
+++ b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/BufferCacheCloudReadContextUtil.java
@@ -27,8 +27,8 @@
 import org.apache.hyracks.cloud.io.ICloudIOManager;
 import org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper;
 
-public class ContextUtil {
-    private ContextUtil() {
+public class BufferCacheCloudReadContextUtil {
+    private BufferCacheCloudReadContextUtil() {
     }
 
     public static boolean isEmpty(BufferCacheHeaderHelper header) {
diff --git a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudOnlyWriteContext.java b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudOnlyWriteContext.java
index c4ae6c0..69d33e8 100644
--- a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudOnlyWriteContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudOnlyWriteContext.java
@@ -24,7 +24,7 @@
 import org.apache.hyracks.api.io.IFileHandle;
 import org.apache.hyracks.cloud.io.ICloudIOManager;
 import org.apache.hyracks.control.nc.io.IOManager;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 
 public final class DefaultCloudOnlyWriteContext implements IBufferCacheWriteContext {
     public static final IBufferCacheWriteContext INSTANCE = new DefaultCloudOnlyWriteContext();
diff --git a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudReadContext.java b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudReadContext.java
index 8dfd8ce..9c24ce1 100644
--- a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudReadContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/buffercache/context/DefaultCloudReadContext.java
@@ -31,7 +31,7 @@
 import org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper;
 import org.apache.hyracks.storage.common.buffercache.CachedPage;
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
 import org.apache.hyracks.storage.common.disk.IPhysicalDrive;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.util.annotations.ThreadSafe;
@@ -100,7 +100,7 @@
     private static ByteBuffer readAndPersistIfEmpty(IOManager ioManager, IFileHandle fileHandle,
             BufferCacheHeaderHelper header, CachedPage cPage, boolean persist) throws HyracksDataException {
         ByteBuffer headerBuf = header.getBuffer();
-        if (ContextUtil.isEmpty(header)) {
+        if (BufferCacheCloudReadContextUtil.isEmpty(header)) {
             // header indicates the page is empty
             // reset the buffer position to 0. Limit should be already set before the call of processHeader
             headerBuf.position(0);
@@ -111,7 +111,7 @@
             headerBuf.flip();
 
             if (persist) {
-                ContextUtil.persist(cloudIOManager, fileHandle, headerBuf, offset);
+                BufferCacheCloudReadContextUtil.persist(cloudIOManager, fileHandle, headerBuf, offset);
             }
         }
 
diff --git a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/sweeper/SweepContext.java b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/sweeper/SweepContext.java
index 773b307..79fdb5a 100644
--- a/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/sweeper/SweepContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-cloud/src/main/java/org/apache/hyracks/cloud/sweeper/SweepContext.java
@@ -27,7 +27,7 @@
 import org.apache.hyracks.cloud.io.ICloudIOManager;
 import org.apache.hyracks.storage.common.buffercache.BufferCache;
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
 import org.apache.hyracks.storage.common.disk.ISweepContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/org/apache/hyracks/examples/btree/helper/RuntimeContext.java b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/org/apache/hyracks/examples/btree/helper/RuntimeContext.java
index bdac239..f5edc74 100644
--- a/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/org/apache/hyracks/examples/btree/helper/RuntimeContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-examples/btree-example/btreehelper/src/main/java/org/apache/hyracks/examples/btree/helper/RuntimeContext.java
@@ -37,7 +37,7 @@
 import org.apache.hyracks.storage.common.buffercache.IBufferCache;
 import org.apache.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
 import org.apache.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider;
+import org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider;
 import org.apache.hyracks.storage.common.file.FileMapManager;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
 import org.apache.hyracks.storage.common.file.IFileMapProvider;
@@ -64,7 +64,7 @@
         ThreadFactory threadFactory = Thread::new;
         this.ioManager = appCtx.getIoManager();
         bufferCache = new BufferCache(ioManager, prs, new DelayPageCleanerPolicy(1000), fileMapManager, 100, 10,
-                threadFactory, new HashMap<>(), DefaultBufferCachePageOperationContextProvider.DEFAULT);
+                threadFactory, new HashMap<>(), DefaultBufferCacheReadContextProvider.DEFAULT);
         ILocalResourceRepositoryFactory localResourceRepositoryFactory = new TransientLocalResourceRepositoryFactory();
         localResourceRepository = localResourceRepositoryFactory.createRepository();
         resourceIdFactory = (new ResourceIdFactoryProvider(localResourceRepository)).createResourceIdFactory();
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-bloomfilter/src/main/java/org/apache/hyracks/storage/am/bloomfilter/impls/BloomFilter.java b/hyracks-fullstack/hyracks/hyracks-storage-am-bloomfilter/src/main/java/org/apache/hyracks/storage/am/bloomfilter/impls/BloomFilter.java
index d94435d..aa17474 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-bloomfilter/src/main/java/org/apache/hyracks/storage/am/bloomfilter/impls/BloomFilter.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-bloomfilter/src/main/java/org/apache/hyracks/storage/am/bloomfilter/impls/BloomFilter.java
@@ -31,7 +31,7 @@
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.PageWriteFailureCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 
 public class BloomFilter {
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-btree/src/main/java/org/apache/hyracks/storage/am/btree/impls/BTree.java b/hyracks-fullstack/hyracks/hyracks-storage-am-btree/src/main/java/org/apache/hyracks/storage/am/btree/impls/BTree.java
index 89aa769..7c0cd10 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-btree/src/main/java/org/apache/hyracks/storage/am/btree/impls/BTree.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-btree/src/main/java/org/apache/hyracks/storage/am/btree/impls/BTree.java
@@ -19,7 +19,7 @@
 
 package org.apache.hyracks.storage.am.btree.impls;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 
 import java.util.ArrayList;
 import java.util.List;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/AppendOnlyLinkedMetadataPageManager.java b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/AppendOnlyLinkedMetadataPageManager.java
index 501f8a6..852c8b5 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/AppendOnlyLinkedMetadataPageManager.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/AppendOnlyLinkedMetadataPageManager.java
@@ -34,7 +34,7 @@
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteFailureCallback;
 import org.apache.hyracks.storage.common.buffercache.NoOpPageWriteCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/LinkedMetaDataPageManager.java b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/LinkedMetaDataPageManager.java
index ddd8dfd..edc6d10 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/LinkedMetaDataPageManager.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/freepage/LinkedMetaDataPageManager.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.am.common.freepage;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 import org.apache.hyracks.data.std.api.IPointable;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/impls/AbstractTreeIndexBulkLoader.java b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/impls/AbstractTreeIndexBulkLoader.java
index 1ed1264..6a2f43f 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/impls/AbstractTreeIndexBulkLoader.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-common/src/main/java/org/apache/hyracks/storage/am/common/impls/AbstractTreeIndexBulkLoader.java
@@ -36,7 +36,7 @@
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.PageWriteFailureCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/impls/lsm/tuples/ColumnMultiBufferProvider.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/impls/lsm/tuples/ColumnMultiBufferProvider.java
index 34ec856..48633e7 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/impls/lsm/tuples/ColumnMultiBufferProvider.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/impls/lsm/tuples/ColumnMultiBufferProvider.java
@@ -18,6 +18,9 @@
  */
 package org.apache.hyracks.storage.am.lsm.btree.column.impls.lsm.tuples;
 
+import static org.apache.hyracks.storage.am.lsm.btree.column.utils.ColumnUtil.getColumnStartOffset;
+import static org.apache.hyracks.storage.am.lsm.btree.column.utils.ColumnUtil.getNumberOfPages;
+
 import java.nio.ByteBuffer;
 import java.util.ArrayDeque;
 import java.util.Queue;
@@ -26,6 +29,7 @@
 import org.apache.hyracks.storage.am.lsm.btree.column.api.IColumnBufferProvider;
 import org.apache.hyracks.storage.am.lsm.btree.column.api.IColumnReadMultiPageOp;
 import org.apache.hyracks.storage.am.lsm.btree.column.impls.btree.ColumnBTreeReadLeafFrame;
+import org.apache.hyracks.storage.am.lsm.btree.column.utils.ColumnUtil;
 import org.apache.hyracks.storage.common.buffercache.CachedPage;
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
 
@@ -55,17 +59,19 @@
             length = 0;
             return;
         }
+        int pageSize = multiPageOp.getPageSize();
 
         int offset = frame.getColumnOffset(columnIndex);
         startPage = frame.getPageId() + getColumnPageIndex(offset);
-        startOffset = offset % multiPageOp.getPageSize();
-        //Duplicate as the buffer could be shared by more than one column
+        startOffset = getColumnStartOffset(offset, pageSize);
+        // Duplicate as the buffer could be shared by more than one column
         ByteBuffer firstPage = readNext().duplicate();
-        firstPage.position(startOffset);
-        //Read the length
-        length = firstPage.getInt();
+        // Read the column's length
+        length = ColumnUtil.readColumnLength(firstPage, startOffset, pageSize);
+        // Get the remaining length of the column
         int remainingLength = length - firstPage.remaining();
-        numberOfPages = (int) Math.ceil((double) remainingLength / multiPageOp.getPageSize());
+        // Get the number of pages this column occupies
+        numberOfPages = getNumberOfPages(remainingLength, pageSize);
         //+4-bytes after reading the length
         startOffset += Integer.BYTES;
         //-4-bytes after reading the length
@@ -117,6 +123,6 @@
     }
 
     private int getColumnPageIndex(int columnOffset) {
-        return (int) Math.floor((double) columnOffset / multiPageOp.getPageSize());
+        return ColumnUtil.getColumnPageIndex(columnOffset, multiPageOp.getPageSize());
     }
 }
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/utils/ColumnUtil.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/utils/ColumnUtil.java
index 25ed3db..12bb64e 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/utils/ColumnUtil.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-btree-column/src/main/java/org/apache/hyracks/storage/am/lsm/btree/column/utils/ColumnUtil.java
@@ -18,6 +18,8 @@
  */
 package org.apache.hyracks.storage.am.lsm.btree.column.utils;
 
+import java.nio.ByteBuffer;
+
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 import org.apache.hyracks.api.util.HyracksConstants;
 import org.apache.hyracks.data.std.api.IValueReference;
@@ -53,6 +55,53 @@
         dest.put(COLUMNS_METADATA_KEY, columnsMetadataValue);
     }
 
+    public static int getColumnPageIndex(int columnOffset, int pageSize) {
+        return (int) Math.floor((double) columnOffset / pageSize);
+    }
+
+    /**
+     * Get the column starting offset within the first page
+     *
+     * @param offset   absolute column offset as reported by Page0
+     * @param pageSize disk buffer cache page size
+     * @return start offset
+     */
+    public static int getColumnStartOffset(int offset, int pageSize) {
+        return offset % pageSize;
+    }
+
+    /**
+     * Reads and returns the columns length in bytes
+     * NOTE: calling this method will set the firstPage position and limit appropriately
+     *
+     * @param firstPage   first page of the column
+     * @param startOffset starting offset of the column in firstPage see {{@link #getColumnStartOffset(int, int)}}
+     * @param pageSize    disk buffer cache page size
+     * @return column's length
+     */
+    public static int readColumnLength(ByteBuffer firstPage, int startOffset, int pageSize) {
+        // Set the limit to read the length of the column
+        firstPage.limit(startOffset + Integer.BYTES);
+        // Set position at the start of column
+        firstPage.position(startOffset);
+        // Read the length of this column
+        int length = firstPage.getInt();
+        // Ensure the page limit to at most a full page
+        firstPage.limit(Math.min(length, pageSize));
+        return length;
+    }
+
+    /**
+     * Returns the number of pages a column occupies
+     *
+     * @param remainingLength columns remaining length. see {@link #readColumnLength(ByteBuffer, int, int)}
+     * @param pageSize        disk buffer cache page size
+     * @return number of pages the column occupies
+     */
+    public static int getNumberOfPages(int remainingLength, int pageSize) {
+        return (int) Math.ceil((double) remainingLength / pageSize);
+    }
+
     public static IColumnTupleProjector getTupleProjector(IIndexAccessParameters iap,
             IColumnTupleProjector defaultProjector) {
         IColumnTupleProjector projector =
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java
index bccce90..eaebc6d 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/freepage/VirtualFreePageManager.java
@@ -19,7 +19,7 @@
 
 package org.apache.hyracks.storage.am.lsm.common.freepage;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 
 import java.util.concurrent.atomic.AtomicInteger;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java
index d145558..f42d0d3 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/MultitenantVirtualBufferCache.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.am.lsm.common.impls;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.DEFAULT;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.DEFAULT;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -33,8 +33,8 @@
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteFailureCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
 import org.apache.hyracks.util.JSONUtil;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java
index 72f1e4a..564a9b7 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-common/src/main/java/org/apache/hyracks/storage/am/lsm/common/impls/VirtualBufferCache.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.am.lsm.common.impls;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.DEFAULT;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.DEFAULT;
 
 import java.nio.ByteBuffer;
 import java.util.HashMap;
@@ -41,8 +41,8 @@
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteFailureCallback;
 import org.apache.hyracks.storage.common.buffercache.VirtualPage;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.storage.common.file.FileMapManager;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/org/apache/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/org/apache/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java
index 8ef078a..2583d0a 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/org/apache/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-lsm-invertedindex/src/main/java/org/apache/hyracks/storage/am/lsm/invertedindex/ondisk/OnDiskInvertedIndex.java
@@ -71,7 +71,7 @@
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.NoOpPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.PageWriteFailureCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 
 /**
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-am-rtree/src/main/java/org/apache/hyracks/storage/am/rtree/impls/RTree.java b/hyracks-fullstack/hyracks/hyracks-storage-am-rtree/src/main/java/org/apache/hyracks/storage/am/rtree/impls/RTree.java
index 356cc70..35785d3 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-am-rtree/src/main/java/org/apache/hyracks/storage/am/rtree/impls/RTree.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-am-rtree/src/main/java/org/apache/hyracks/storage/am/rtree/impls/RTree.java
@@ -19,7 +19,7 @@
 
 package org.apache.hyracks.storage.am.rtree.impls;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/AbstractBufferedFileIOManager.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/AbstractBufferedFileIOManager.java
index 1091040..21cefb6 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/AbstractBufferedFileIOManager.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/AbstractBufferedFileIOManager.java
@@ -27,8 +27,8 @@
 import org.apache.hyracks.api.io.IIOManager;
 import org.apache.hyracks.api.util.IoUtil;
 import org.apache.hyracks.control.nc.io.IOManager;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.CompressedFileReference;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
 import org.apache.hyracks.util.annotations.NotThreadSafe;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java
index 5d25685..d47b8e3 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/BufferCache.java
@@ -43,10 +43,10 @@
 import org.apache.hyracks.api.lifecycle.ILifeCycleComponent;
 import org.apache.hyracks.api.replication.IIOReplicationManager;
 import org.apache.hyracks.api.util.ExceptionUtils;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
@@ -134,7 +134,7 @@
             ThreadFactory threadFactory, IIOReplicationManager ioReplicationManager,
             Map<Integer, BufferedFileHandle> fileInfoMap) {
         this(ioManager, pageReplacementStrategy, pageCleanerPolicy, fileMapManager, maxOpenFiles, ioQueueLen,
-                threadFactory, fileInfoMap, DefaultBufferCachePageOperationContextProvider.DEFAULT);
+                threadFactory, fileInfoMap, DefaultBufferCacheReadContextProvider.DEFAULT);
         this.ioReplicationManager = ioReplicationManager;
     }
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/DebugBufferCache.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/DebugBufferCache.java
index 43e5940..342d003 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/DebugBufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/DebugBufferCache.java
@@ -19,15 +19,15 @@
 
 package org.apache.hyracks.storage.common.buffercache;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.DEFAULT;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.DEFAULT;
 
 import java.util.concurrent.atomic.AtomicLong;
 
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 import org.apache.hyracks.api.io.FileReference;
 import org.apache.hyracks.api.replication.IIOReplicationManager;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 
 /**
  * Implementation of an IBufferCache that counts the number of pins/unpins,
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/FIFOLocalWriter.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/FIFOLocalWriter.java
index ce7fb5b..e076686 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/FIFOLocalWriter.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/FIFOLocalWriter.java
@@ -15,7 +15,7 @@
 
 package org.apache.hyracks.storage.common.buffercache;
 
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.util.ExitUtil;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/IBufferCache.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/IBufferCache.java
index d11a065..d69ded1 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/IBufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/IBufferCache.java
@@ -21,8 +21,8 @@
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 import org.apache.hyracks.api.io.FileReference;
 import org.apache.hyracks.api.replication.IIOReplicationManager;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
 
 public interface IBufferCache {
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/IBufferCacheReadContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/IBufferCacheReadContext.java
similarity index 97%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/IBufferCacheReadContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/IBufferCacheReadContext.java
index f63ab76..3c2bbcd 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/IBufferCacheReadContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/IBufferCacheReadContext.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context;
 
 import java.nio.ByteBuffer;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/IBufferCacheWriteContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/IBufferCacheWriteContext.java
similarity index 96%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/IBufferCacheWriteContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/IBufferCacheWriteContext.java
index 9b3761a..25d29c3 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/IBufferCacheWriteContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/IBufferCacheWriteContext.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context;
 
 import java.nio.ByteBuffer;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/AbstractBufferCacheReadContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/AbstractBufferCacheReadContext.java
similarity index 93%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/AbstractBufferCacheReadContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/AbstractBufferCacheReadContext.java
index 13b8ee9..42abd2e 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/AbstractBufferCacheReadContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/AbstractBufferCacheReadContext.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context.read;
 
 import static org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper.EXTRA_BLOCK_PAGE_ID_OFF;
 import static org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper.FRAME_MULTIPLIER_OFF;
@@ -28,6 +28,7 @@
 import org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper;
 import org.apache.hyracks.storage.common.buffercache.CachedPage;
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 
 abstract class AbstractBufferCacheReadContext implements IBufferCacheReadContext {
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCacheReadContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/DefaultBufferCacheReadContext.java
similarity index 93%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCacheReadContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/DefaultBufferCacheReadContext.java
index b44ae25..b07fce8 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCacheReadContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/DefaultBufferCacheReadContext.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context.read;
 
 final class DefaultBufferCacheReadContext extends AbstractBufferCacheReadContext {
     @Override
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCachePageOperationContextProvider.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/DefaultBufferCacheReadContextProvider.java
similarity index 82%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCachePageOperationContextProvider.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/DefaultBufferCacheReadContextProvider.java
index a187b9b..a8bef4e 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCachePageOperationContextProvider.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/DefaultBufferCacheReadContextProvider.java
@@ -16,10 +16,12 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context.read;
 
-public class DefaultBufferCachePageOperationContextProvider {
-    private DefaultBufferCachePageOperationContextProvider() {
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+
+public class DefaultBufferCacheReadContextProvider {
+    private DefaultBufferCacheReadContextProvider() {
     }
 
     /**
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/NoStatsBufferCacheReadContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/NoStatsBufferCacheReadContext.java
similarity index 93%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/NoStatsBufferCacheReadContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/NoStatsBufferCacheReadContext.java
index fa5ac65..24a7205 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/NoStatsBufferCacheReadContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/NoStatsBufferCacheReadContext.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context.read;
 
 final class NoStatsBufferCacheReadContext extends AbstractBufferCacheReadContext {
     @Override
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/PinNewBufferCacheReadContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/PinNewBufferCacheReadContext.java
similarity index 93%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/PinNewBufferCacheReadContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/PinNewBufferCacheReadContext.java
index 4eda54e..61d052a 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/PinNewBufferCacheReadContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/read/PinNewBufferCacheReadContext.java
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context.read;
 
 final class PinNewBufferCacheReadContext extends AbstractBufferCacheReadContext {
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCacheWriteContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/write/DefaultBufferCacheWriteContext.java
similarity index 91%
rename from hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCacheWriteContext.java
rename to hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/write/DefaultBufferCacheWriteContext.java
index a5ef722..c986991 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/page/DefaultBufferCacheWriteContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/buffercache/context/write/DefaultBufferCacheWriteContext.java
@@ -16,13 +16,14 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-package org.apache.hyracks.storage.common.buffercache.context.page;
+package org.apache.hyracks.storage.common.buffercache.context.write;
 
 import java.nio.ByteBuffer;
 
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 import org.apache.hyracks.api.io.IFileHandle;
 import org.apache.hyracks.control.nc.io.IOManager;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 
 public final class DefaultBufferCacheWriteContext implements IBufferCacheWriteContext {
     public static final IBufferCacheWriteContext INSTANCE = new DefaultBufferCacheWriteContext();
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/CompressedFileManager.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/CompressedFileManager.java
index 0a7bcf0..365b92d 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/CompressedFileManager.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/CompressedFileManager.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.common.compression.file;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NO_STATS;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NO_STATS;
 
 import java.nio.ByteBuffer;
 import java.util.EnumSet;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/LAFWriter.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/LAFWriter.java
index 8598401..1ed462b 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/LAFWriter.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/compression/file/LAFWriter.java
@@ -35,7 +35,7 @@
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.NoOpPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.PageWriteFailureCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.util.annotations.NotThreadSafe;
 
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/disk/ISweepContext.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/disk/ISweepContext.java
index 1646116..c1204f5 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/disk/ISweepContext.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/disk/ISweepContext.java
@@ -21,7 +21,7 @@
 import org.apache.hyracks.api.exceptions.HyracksDataException;
 import org.apache.hyracks.storage.common.buffercache.IBufferCache;
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
 
 /**
  * Provides the necessary {@link IBufferCache} functionalities for a sweep operation
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/BufferedFileHandle.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/BufferedFileHandle.java
index 3edec4b..970a0ae 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/BufferedFileHandle.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/BufferedFileHandle.java
@@ -33,8 +33,8 @@
 import org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper;
 import org.apache.hyracks.storage.common.buffercache.CachedPage;
 import org.apache.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.CompressedFileReference;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
 import org.apache.hyracks.storage.common.compression.file.NoOpLAFWriter;
diff --git a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/CompressedBufferedFileHandle.java b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/CompressedBufferedFileHandle.java
index ed71a94..6fe3846 100644
--- a/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/CompressedBufferedFileHandle.java
+++ b/hyracks-fullstack/hyracks/hyracks-storage-common/src/main/java/org/apache/hyracks/storage/common/file/CompressedBufferedFileHandle.java
@@ -30,8 +30,8 @@
 import org.apache.hyracks.storage.common.buffercache.BufferCacheHeaderHelper;
 import org.apache.hyracks.storage.common.buffercache.CachedPage;
 import org.apache.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.file.CompressedFileManager;
 import org.apache.hyracks.storage.common.compression.file.CompressedFileReference;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;
diff --git a/hyracks-fullstack/hyracks/hyracks-test-support/src/main/java/org/apache/hyracks/test/support/TestStorageManagerComponentHolder.java b/hyracks-fullstack/hyracks/hyracks-test-support/src/main/java/org/apache/hyracks/test/support/TestStorageManagerComponentHolder.java
index 8e002b5..7f696b4 100644
--- a/hyracks-fullstack/hyracks/hyracks-test-support/src/main/java/org/apache/hyracks/test/support/TestStorageManagerComponentHolder.java
+++ b/hyracks-fullstack/hyracks/hyracks-test-support/src/main/java/org/apache/hyracks/test/support/TestStorageManagerComponentHolder.java
@@ -45,7 +45,7 @@
 import org.apache.hyracks.storage.common.buffercache.IBufferCache;
 import org.apache.hyracks.storage.common.buffercache.ICacheMemoryAllocator;
 import org.apache.hyracks.storage.common.buffercache.IPageReplacementStrategy;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider;
+import org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider;
 import org.apache.hyracks.storage.common.file.FileMapManager;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
 import org.apache.hyracks.storage.common.file.IFileMapProvider;
@@ -152,7 +152,7 @@
         IFileMapProvider fileMapProvider = getFileMapProvider();
         bufferCache = new BufferCache(ioManager, prs, new DelayPageCleanerPolicy(1000),
                 (IFileMapManager) fileMapProvider, maxOpenFiles, 10, threadFactory, new HashMap<>(),
-                DefaultBufferCachePageOperationContextProvider.DEFAULT);
+                DefaultBufferCacheReadContextProvider.DEFAULT);
         return bufferCache;
     }
 }
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/org/apache/hyracks/storage/am/btree/FieldPrefixNSMTest.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/org/apache/hyracks/storage/am/btree/FieldPrefixNSMTest.java
index 8b5fe68..adf0033 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/org/apache/hyracks/storage/am/btree/FieldPrefixNSMTest.java
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-btree-test/src/test/java/org/apache/hyracks/storage/am/btree/FieldPrefixNSMTest.java
@@ -19,7 +19,7 @@
 
 package org.apache.hyracks.storage.am.btree;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 
 import java.io.DataOutput;
 import java.util.Random;
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/org/apache/hyracks/storage/am/lsm/btree/impl/TestVirtualBufferCache.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/org/apache/hyracks/storage/am/lsm/btree/impl/TestVirtualBufferCache.java
index 154e34a..637e553 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/org/apache/hyracks/storage/am/lsm/btree/impl/TestVirtualBufferCache.java
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-btree-test/src/test/java/org/apache/hyracks/storage/am/lsm/btree/impl/TestVirtualBufferCache.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.am.lsm.btree.impl;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.DEFAULT;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.DEFAULT;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -35,9 +35,9 @@
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteCallback;
 import org.apache.hyracks.storage.common.buffercache.IPageWriteFailureCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheReadContext;
-import org.apache.hyracks.storage.common.buffercache.context.page.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheReadContext;
+import org.apache.hyracks.storage.common.buffercache.context.IBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.IFileMapManager;
 
 public class TestVirtualBufferCache implements IVirtualBufferCache {
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/VirtualBufferCacheTest.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/VirtualBufferCacheTest.java
index e7d258c..263de65 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/VirtualBufferCacheTest.java
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-am-lsm-common-test/src/test/java/org/apache/hyracks/storage/am/lsm/common/test/VirtualBufferCacheTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.am.lsm.common.test;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 import static org.junit.Assert.assertTrue;
 
 import java.util.Collections;
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheRegressionTest.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheRegressionTest.java
index 4dc165f..8a670c2 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheRegressionTest.java
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheRegressionTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.common;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 import static org.junit.Assert.fail;
 
 import java.io.File;
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheTest.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheTest.java
index e797967..c8a9532 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheTest.java
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheTest.java
@@ -18,7 +18,7 @@
  */
 package org.apache.hyracks.storage.common;
 
-import static org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCachePageOperationContextProvider.NEW;
+import static org.apache.hyracks.storage.common.buffercache.context.read.DefaultBufferCacheReadContextProvider.NEW;
 
 import java.io.File;
 import java.text.SimpleDateFormat;
@@ -46,7 +46,7 @@
 import org.apache.hyracks.storage.common.buffercache.IBufferCache;
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
 import org.apache.hyracks.storage.common.buffercache.NoOpPageWriteCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.file.BufferedFileHandle;
 import org.apache.hyracks.test.support.TestStorageManagerComponentHolder;
 import org.apache.hyracks.test.support.TestUtils;
diff --git a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheWithCompressionTest.java b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheWithCompressionTest.java
index ad3c3b4..4f0da64 100644
--- a/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheWithCompressionTest.java
+++ b/hyracks-fullstack/hyracks/hyracks-tests/hyracks-storage-common-test/src/test/java/org/apache/hyracks/storage/common/BufferCacheWithCompressionTest.java
@@ -46,7 +46,7 @@
 import org.apache.hyracks.storage.common.buffercache.ICachedPage;
 import org.apache.hyracks.storage.common.buffercache.IFIFOPageWriter;
 import org.apache.hyracks.storage.common.buffercache.NoOpPageWriteCallback;
-import org.apache.hyracks.storage.common.buffercache.context.page.DefaultBufferCacheWriteContext;
+import org.apache.hyracks.storage.common.buffercache.context.write.DefaultBufferCacheWriteContext;
 import org.apache.hyracks.storage.common.compression.SnappyCompressorDecompressorFactory;
 import org.apache.hyracks.storage.common.compression.file.CompressedFileReference;
 import org.apache.hyracks.storage.common.compression.file.ICompressedPageWriter;