AbstractExecNodeExactlyOnceVisitor (Flink : 2.0-SNAPSHOT API)

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 Description

AbstractExecNodeExactlyOnceVisitor()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	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)
```