org.apache.flink.optimizer.traversals

类 UnionParallelismAndForwardEnforcer

java.lang.Object

org.apache.flink.optimizer.traversals.UnionParallelismAndForwardEnforcer

所有已实现的接口:

org.apache.flink.util.Visitor<OptimizerNode>

public class UnionParallelismAndForwardEnforcer
extends Object
implements org.apache.flink.util.Visitor<OptimizerNode>

Enforces that all union nodes have the same parallelism as their successor (there must be only one!) and that the union node and its successor are connected by a forward ship strategy.

构造器概要

构造器

构造器和说明
UnionParallelismAndForwardEnforcer()

方法概要

限定符和类型	方法和说明
void	postVisit(OptimizerNode node)
boolean	preVisit(OptimizerNode node)

从类继承的方法 java.lang.Object

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

构造器详细资料

UnionParallelismAndForwardEnforcer

public UnionParallelismAndForwardEnforcer()

方法详细资料

preVisit

public boolean preVisit(OptimizerNode node)

指定者:

preVisit 在接口中 org.apache.flink.util.Visitor<OptimizerNode>

postVisit

public void postVisit(OptimizerNode node)

指定者:

postVisit 在接口中 org.apache.flink.util.Visitor<OptimizerNode>