org.apache.flink.table.planner.plan.nodes.exec.visitor

Class AbstractExecNodeExactlyOnceVisitor

java.lang.Object

org.apache.flink.table.planner.plan.nodes.exec.visitor.AbstractExecNodeExactlyOnceVisitor

All Implemented Interfaces:

ExecNodeVisitor

Direct Known Subclasses:

ExecNodeGraphValidator

public abstract class AbstractExecNodeExactlyOnceVisitor
extends Object
implements ExecNodeVisitor

Implement of ExecNodeVisitor. All nodes are visited exactly once.

Constructor Summary

Constructors

Constructor and Description
AbstractExecNodeExactlyOnceVisitor()

Method Summary

Modifier and Type	Method and Description
void	visit(ExecNode<?> node) Visits a node during a traversal.
protected void	visitInputs(ExecNode<?> node)
protected abstract void	visitNode(ExecNode<?> node)

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractExecNodeExactlyOnceVisitor

public AbstractExecNodeExactlyOnceVisitor()

Method Detail

visit

public void visit(ExecNode<?> node)

Description copied from interface: ExecNodeVisitor

Visits a node during a traversal.

Specified by:

visit in interface ExecNodeVisitor

Parameters:

node - ExecNode to visit

visitNode

protected abstract void visitNode(ExecNode<?> node)

visitInputs

protected void visitInputs(ExecNode<?> node)