StepFunctionValidator (Flink : Optimizer 1.19.2-cp2 API)

java.lang.Object
- org.apache.flink.optimizer.traversals.StepFunctionValidator

All Implemented Interfaces:

org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>
```
public class StepFunctionValidator
extends Object
implements org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>
```
A traversal that checks if the Workset of a delta iteration is used in the data flow of its step function.

Constructor Summary

Constructors
Constructor Description

StepFunctionValidator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`hasFoundWorkset()`
`void`	`postVisit(org.apache.flink.api.common.operators.Operator<?> visitable)`
`boolean`	`preVisit(org.apache.flink.api.common.operators.Operator<?> visitable)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - StepFunctionValidator
```
public StepFunctionValidator()
```
- Method Detail
  - preVisit
```
public boolean preVisit(org.apache.flink.api.common.operators.Operator<?> visitable)
```
    Specified by:
    
    preVisit in interface org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>
  - postVisit
```
public void postVisit(org.apache.flink.api.common.operators.Operator<?> visitable)
```
    Specified by:
    
    postVisit in interface org.apache.flink.util.Visitor<org.apache.flink.api.common.operators.Operator<?>>
  - hasFoundWorkset
```
public boolean hasFoundWorkset()
```