org.apache.flink.runtime.io.network.partition.hybrid

Class HsFileDataIndexImpl.InternalRegion

java.lang.Object

org.apache.flink.runtime.io.network.partition.hybrid.HsFileDataIndexImpl.InternalRegion

All Implemented Interfaces:

FileDataIndexRegionHelper.Region

Enclosing class:

HsFileDataIndexImpl

public static class HsFileDataIndexImpl.InternalRegion
extends Object
implements FileDataIndexRegionHelper.Region

A HsFileDataIndexImpl.InternalRegion is an implementation of FileDataIndexRegionHelper.Region. Note that this class introduced a new field to indicate whether each buffer in the region is released.

Field Summary

Fields

Modifier and Type	Field and Description
static int	HEADER_SIZE HsFileDataIndexImpl.InternalRegion is consists of header and payload.

Constructor Summary

Constructors

Constructor and Description
InternalRegion(int firstBufferIndex, long regionFileOffset, int numBuffers, boolean[] released)

Method Summary

Modifier and Type	Method and Description
boolean	containBuffer(int bufferIndex) Whether the current region contain the buffer.
int	getFirstBufferIndex() Get the first buffer index of this region.
int	getNumBuffers() Get the number of buffers in this region.
long	getRegionEndOffset() Get the file end offset of the region.
long	getRegionStartOffset() Get the file start offset of this region.
boolean[]	getReleased()
int	getSize() Get the total size in bytes of this region, including the fields and the buffers.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

HEADER_SIZE

public static final int HEADER_SIZE

HsFileDataIndexImpl.InternalRegion is consists of header and payload. (firstBufferIndex, firstBufferOffset, numBuffer) are immutable header part that have fixed size. The array of released is variable payload. This field represents the size of header.

See Also:

Constant Field Values

Constructor Detail

InternalRegion

public InternalRegion(int firstBufferIndex,
                      long regionFileOffset,
                      int numBuffers,
                      boolean[] released)

Method Detail

containBuffer

public boolean containBuffer(int bufferIndex)

Description copied from interface: FileDataIndexRegionHelper.Region

Whether the current region contain the buffer.

Specified by:

containBuffer in interface FileDataIndexRegionHelper.Region

Parameters:

bufferIndex - the specific buffer index

getSize

public int getSize()

Description copied from interface: FileDataIndexRegionHelper.Region

Get the total size in bytes of this region, including the fields and the buffers.

Specified by:

getSize in interface FileDataIndexRegionHelper.Region

getFirstBufferIndex

public int getFirstBufferIndex()

Description copied from interface: FileDataIndexRegionHelper.Region

Get the first buffer index of this region.

Specified by:

getFirstBufferIndex in interface FileDataIndexRegionHelper.Region

getRegionStartOffset

public long getRegionStartOffset()

Description copied from interface: FileDataIndexRegionHelper.Region

Get the file start offset of this region.

Specified by:

getRegionStartOffset in interface FileDataIndexRegionHelper.Region

getRegionEndOffset

public long getRegionEndOffset()

Description copied from interface: FileDataIndexRegionHelper.Region

Get the file end offset of the region.

Specified by:

getRegionEndOffset in interface FileDataIndexRegionHelper.Region

getNumBuffers

public int getNumBuffers()

Description copied from interface: FileDataIndexRegionHelper.Region

Get the number of buffers in this region.

Specified by:

getNumBuffers in interface FileDataIndexRegionHelper.Region

getReleased

public boolean[] getReleased()