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

Class ProducerMergedPartitionFileIndex.FixedSizeRegion

java.lang.Object

org.apache.flink.runtime.io.network.partition.hybrid.tiered.file.ProducerMergedPartitionFileIndex.FixedSizeRegion

All Implemented Interfaces:

FileDataIndexRegionHelper.Region

Enclosing class:

ProducerMergedPartitionFileIndex

public static class ProducerMergedPartitionFileIndex.FixedSizeRegion
extends Object
implements FileDataIndexRegionHelper.Region

Represents a series of buffers that are:

• From the same subpartition
• Logically (i.e. buffer index) consecutive
• Physically (i.e. offset in the file) consecutive

Note that the region has a fixed size.

Field Summary

Fields

Modifier and Type	Field and Description
static int	REGION_SIZE

Constructor Summary

Constructors

Constructor and Description
FixedSizeRegion(int firstBufferIndex, long regionStartOffset, long regionEndOffset, int numBuffers)

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.
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

REGION_SIZE

public static final int REGION_SIZE

See Also:

Constant Field Values

Constructor Detail

FixedSizeRegion

public FixedSizeRegion(int firstBufferIndex,
                       long regionStartOffset,
                       long regionEndOffset,
                       int numBuffers)

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()

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

Specified by:

getSize 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

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