org.apache.flink.runtime.executiongraph

Class DistributionPatternProvider

java.lang.Object

org.apache.flink.runtime.executiongraph.DistributionPatternProvider

public final class DistributionPatternProvider
extends Object

Constructor Summary

Constructors

Constructor and Description
DistributionPatternProvider()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	createWire(DistributionPattern pattern, int nodeLowerStage, int nodeUpperStage, int sizeSetLowerStage, int sizeSetUpperStage) Checks if two subtasks of different tasks should be wired.

Methods inherited from class java.lang.Object

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

Constructor Detail

DistributionPatternProvider

public DistributionPatternProvider()

Method Detail

createWire

public static boolean createWire(DistributionPattern pattern,
                 int nodeLowerStage,
                 int nodeUpperStage,
                 int sizeSetLowerStage,
                 int sizeSetUpperStage)

Checks if two subtasks of different tasks should be wired.

Parameters:

pattern - the distribution pattern that should be used

nodeLowerStage - the index of the producing task's subtask

nodeUpperStage - the index of the consuming task's subtask

sizeSetLowerStage - the number of subtasks of the producing task

sizeSetUpperStage - the number of subtasks of the consuming task

Returns:

true if a wire between the two considered subtasks should be created, false otherwise