Pipeline.PipelineVisitor.Defaults

java.lang.Object
+
- org.apache.beam.sdk.Pipeline.PipelineVisitor.Defaults
+

+
+
All Implemented Interfaces:
+
Pipeline.PipelineVisitor
+
+
+
Direct Known Subclasses:
+
SparkRunner.Evaluator
+
+
+
Enclosing interface:
+
Pipeline.PipelineVisitor
+
+
+
+
```
public static class Pipeline.PipelineVisitor.Defaults
+extends java.lang.Object
+implements Pipeline.PipelineVisitor
```
+
Default no-op Pipeline.PipelineVisitor that enters all composite transforms. + User implementations can override just those methods they are interested in.
+

+ +

+ + +
Nested Class Summary
+
- + + +
  Nested classes/interfaces inherited from interface org.apache.beam.sdk.Pipeline.PipelineVisitor
  +Pipeline.PipelineVisitor.CompositeBehavior, Pipeline.PipelineVisitor.Defaults
+

+ +

+ + +
Constructor Summary
+ + + + + + + + +
Constructors
Constructor and Description
Defaults()
+

Constructors
Constructor and Description
`Defaults()`

+ +

+ + +

Method Summary

+ + + + + + + + + + + + + + + + + + + + + + +

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Pipeline.PipelineVisitor.CompositeBehavior`	`enterCompositeTransform(TransformHierarchy.Node node)` + Called for each composite transform after all topological predecessors have been visited + but before any of its component transforms. +
`void`	`leaveCompositeTransform(TransformHierarchy.Node node)` + Called for each composite transform after all of its component transforms and their outputs + have been visited. +
`void`	`visitPrimitiveTransform(TransformHierarchy.Node node)` + Called for each primitive transform after all of its topological predecessors + and inputs have been visited. +
`void`	`visitValue(PValue value, + TransformHierarchy.Node producer)` + Called for each value after the transform that produced the value has been + visited. +

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

+ +
- + + +
  Constructor Detail
  + + + +
  - +
    Defaults
    +
```
public Defaults()
```
    +
  +
+ +
- + + +
  Method Detail
  + + + +
  - +
    enterCompositeTransform
    +
```
public Pipeline.PipelineVisitor.CompositeBehavior enterCompositeTransform(TransformHierarchy.Node node)
```
    +
    Description copied from interface: Pipeline.PipelineVisitor
    +
    Called for each composite transform after all topological predecessors have been visited + but before any of its component transforms. + +
    The return value controls whether or not child transforms are visited.
    +
    +
    Specified by:
    +
    enterCompositeTransform in interface Pipeline.PipelineVisitor
    +
    +
  + + + +
  - +
    leaveCompositeTransform
    +
```
public void leaveCompositeTransform(TransformHierarchy.Node node)
```
    +
    Description copied from interface: Pipeline.PipelineVisitor
    +
    Called for each composite transform after all of its component transforms and their outputs + have been visited.
    +
    +
    Specified by:
    +
    leaveCompositeTransform in interface Pipeline.PipelineVisitor
    +
    +
  + + + +
  - +
    visitPrimitiveTransform
    +
```
public void visitPrimitiveTransform(TransformHierarchy.Node node)
```
    +
    Description copied from interface: Pipeline.PipelineVisitor
    +
    Called for each primitive transform after all of its topological predecessors + and inputs have been visited.
    +
    +
    Specified by:
    +
    visitPrimitiveTransform in interface Pipeline.PipelineVisitor
    +
    +
  + + + +
  - +
    visitValue
    +
```
public void visitValue(PValue value,
+                       TransformHierarchy.Node producer)
```
    +
    Description copied from interface: Pipeline.PipelineVisitor
    +
    Called for each value after the transform that produced the value has been + visited.
    +
    +
    Specified by:
    +
    visitValue in interface Pipeline.PipelineVisitor
    +
    +
  +
+

Class Pipeline.PipelineVisitor.Defaults

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.beam.sdk.Pipeline.PipelineVisitor

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Defaults

Method Detail

enterCompositeTransform

leaveCompositeTransform

visitPrimitiveTransform

visitValue