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

Class NoOpResultSubpartitionView

java.lang.Object

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

All Implemented Interfaces:

ResultSubpartitionView

public class NoOpResultSubpartitionView
extends Object
implements ResultSubpartitionView

A dummy implementation of the ResultSubpartitionView.

Constructor Summary

Constructors

Constructor and Description
NoOpResultSubpartitionView()

Method Summary

Modifier and Type	Method and Description
Throwable	getFailureCause()
ResultSubpartition.BufferAndBacklog	getNextBuffer() Returns the next Buffer instance of this queue iterator.
boolean	isAvailable()
boolean	isReleased()
boolean	nextBufferIsEvent() Returns whether the next buffer is an event or not.
void	notifyDataAvailable()
void	releaseAllResources()
int	unsynchronizedGetNumberOfQueuedBuffers()

Methods inherited from class java.lang.Object

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

Constructor Detail

NoOpResultSubpartitionView

public NoOpResultSubpartitionView()

Method Detail

getNextBuffer

@Nullable
public ResultSubpartition.BufferAndBacklog getNextBuffer()

Description copied from interface: ResultSubpartitionView

Returns the next Buffer instance of this queue iterator.

If there is currently no instance available, it will return null. This might happen for example when a pipelined queue producer is slower than the consumer or a spilled queue needs to read in more data.

Important: The consumer has to make sure that each buffer instance will eventually be recycled with Buffer.recycleBuffer() after it has been consumed.

Specified by:

getNextBuffer in interface ResultSubpartitionView

notifyDataAvailable

public void notifyDataAvailable()

Specified by:

notifyDataAvailable in interface ResultSubpartitionView

releaseAllResources

public void releaseAllResources()

Specified by:

releaseAllResources in interface ResultSubpartitionView

isReleased

public boolean isReleased()

Specified by:

isReleased in interface ResultSubpartitionView

getFailureCause

public Throwable getFailureCause()

Specified by:

getFailureCause in interface ResultSubpartitionView

nextBufferIsEvent

public boolean nextBufferIsEvent()

Description copied from interface: ResultSubpartitionView

Returns whether the next buffer is an event or not.

Specified by:

nextBufferIsEvent in interface ResultSubpartitionView

isAvailable

public boolean isAvailable()

Specified by:

isAvailable in interface ResultSubpartitionView

unsynchronizedGetNumberOfQueuedBuffers

public int unsynchronizedGetNumberOfQueuedBuffers()

Specified by:

unsynchronizedGetNumberOfQueuedBuffers in interface ResultSubpartitionView