org.apache.flink.optimizer.traversals

Class StaticDynamicPathIdentifier

java.lang.Object

org.apache.flink.optimizer.traversals.StaticDynamicPathIdentifier

All Implemented Interfaces:

Visitor<OptimizerNode>

public class StaticDynamicPathIdentifier
extends Object
implements Visitor<OptimizerNode>

A traversal that goes over the program data flow of an iteration and makes the nodes that depend on the partial solution (the data set recomputed in each iteration) as "dynamic" and the other nodes as "static".

Constructor Summary

Constructors

Constructor and Description
StaticDynamicPathIdentifier(int costWeight)

Method Summary

Modifier and Type	Method and Description
void	postVisit(OptimizerNode visitable) Method that is invoked after all child nodes or descendant nodes were visited.
boolean	preVisit(OptimizerNode visitable) Method that is invoked on the visit before visiting and child nodes or descendant nodes.

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticDynamicPathIdentifier

public StaticDynamicPathIdentifier(int costWeight)

Method Detail

preVisit

public boolean preVisit(OptimizerNode visitable)

Description copied from interface: Visitor

Method that is invoked on the visit before visiting and child nodes or descendant nodes.

Specified by:

preVisit in interface Visitor<OptimizerNode>

Returns:

True, if the traversal should continue, false otherwise.

postVisit

public void postVisit(OptimizerNode visitable)

Description copied from interface: Visitor

Method that is invoked after all child nodes or descendant nodes were visited.

Specified by:

postVisit in interface Visitor<OptimizerNode>