org.apache.flink.runtime.iterative.concurrent

Class BlockingBackChannel

java.lang.Object

org.apache.flink.runtime.iterative.concurrent.BlockingBackChannel

public class BlockingBackChannel
extends Object

A concurrent datastructure that establishes a backchannel buffer between an iteration head and an iteration tail.

Constructor Summary

Constructors

Constructor and Description
BlockingBackChannel(SerializedUpdateBuffer buffer)

Method Summary

Modifier and Type	Method and Description
org.apache.flink.core.memory.DataInputView	getReadEndAfterSuperstepEnded() Called by iteration head after it has sent all input for the current superstep through the data channel (blocks iteration head).
org.apache.flink.core.memory.DataOutputView	getWriteEnd() Called by iteration tail to save the output of the current superstep.
void	notifyOfEndOfSuperstep() Called by iteration tail to signal that all input of a superstep has been processed (unblocks iteration head).

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockingBackChannel

public BlockingBackChannel(SerializedUpdateBuffer buffer)

Method Detail

getReadEndAfterSuperstepEnded

public org.apache.flink.core.memory.DataInputView getReadEndAfterSuperstepEnded()

Called by iteration head after it has sent all input for the current superstep through the data channel (blocks iteration head).

getWriteEnd

public org.apache.flink.core.memory.DataOutputView getWriteEnd()

Called by iteration tail to save the output of the current superstep.

notifyOfEndOfSuperstep

public void notifyOfEndOfSuperstep()

Called by iteration tail to signal that all input of a superstep has been processed (unblocks iteration head).