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

类 ChannelStatePersister

java.lang.Object

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

@NotThreadSafe
public final class ChannelStatePersister
extends Object

Helper class for persisting channel state via ChannelStateWriter.

方法概要

限定符和类型	方法和说明
protected Optional<Long>	checkForBarrier(Buffer buffer)
protected boolean	hasBarrierReceived()
protected void	maybePersist(Buffer buffer)
protected AbstractEvent	parseEvent(Buffer buffer) Parses the buffer as an event and returns the CheckpointBarrier if the event is indeed a barrier or returns null in all other cases.
protected void	startPersisting(long barrierId, List<Buffer> knownBuffers)
protected void	stopPersisting(long id)
String	toString()

从类继承的方法 java.lang.Object

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

方法详细资料

startPersisting

protected void startPersisting(long barrierId,
                               List<Buffer> knownBuffers)
                        throws CheckpointException

抛出:

CheckpointException

stopPersisting

protected void stopPersisting(long id)

maybePersist

protected void maybePersist(Buffer buffer)

checkForBarrier

protected Optional<Long> checkForBarrier(Buffer buffer)
                                  throws IOException

抛出:

IOException

parseEvent

@Nullable
protected AbstractEvent parseEvent(Buffer buffer)
                                      throws IOException

Parses the buffer as an event and returns the CheckpointBarrier if the event is indeed a barrier or returns null in all other cases.

抛出:

IOException

hasBarrierReceived

protected boolean hasBarrierReceived()

toString

public String toString()

覆盖:

toString 在类中 Object