org.apache.flink.optimizer.traversals

Class PlanFinalizer

java.lang.Object

org.apache.flink.optimizer.traversals.PlanFinalizer

All Implemented Interfaces:

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

public class PlanFinalizer
extends Object
implements org.apache.flink.util.Visitor<PlanNode>

This visitor traverses the selected execution plan and finalizes it:

• The graph of nodes is double-linked (links from child to parent are inserted).
• If unions join static and dynamic paths, the cache is marked as a memory consumer.
• Relative memory fractions are assigned to all nodes.
• All nodes are collected into a set.

Constructor Summary

Constructors

Constructor and Description
PlanFinalizer() Creates a new plan finalizer.

Method Summary

Modifier and Type	Method and Description
OptimizedPlan	createFinalPlan(List<SinkPlanNode> sinks, String jobName, org.apache.flink.api.common.Plan originalPlan)
void	postVisit(PlanNode visitable)
boolean	preVisit(PlanNode visitable)

Methods inherited from class java.lang.Object

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

Constructor Detail

PlanFinalizer

public PlanFinalizer()

Creates a new plan finalizer.

Method Detail

createFinalPlan

public OptimizedPlan createFinalPlan(List<SinkPlanNode> sinks,
                                     String jobName,
                                     org.apache.flink.api.common.Plan originalPlan)

preVisit

public boolean preVisit(PlanNode visitable)

Specified by:

preVisit in interface org.apache.flink.util.Visitor<PlanNode>

postVisit

public void postVisit(PlanNode visitable)

Specified by:

postVisit in interface org.apache.flink.util.Visitor<PlanNode>