org.apache.beam.sdk.util.construction

Class CombineTranslation.CombinePerKeyPayloadTranslator

java.lang.Object

org.apache.beam.sdk.util.construction.CombineTranslation.CombinePerKeyPayloadTranslator

All Implemented Interfaces:

PTransformTranslation.TransformPayloadTranslator<Combine.PerKey<?,?,?>>

Enclosing class:

CombineTranslation

public static class CombineTranslation.CombinePerKeyPayloadTranslator
extends java.lang.Object
implements PTransformTranslation.TransformPayloadTranslator<Combine.PerKey<?,?,?>>

A PTransformTranslation.TransformPayloadTranslator for Combine.PerKey.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.beam.sdk.util.construction.PTransformTranslation.TransformPayloadTranslator

PTransformTranslation.TransformPayloadTranslator.NotSerializable<T extends PTransform<?,?>>

Method Summary

Modifier and Type	Method and Description
java.lang.String	getUrn() Provides a unique URN for transforms represented by this TransformPayloadTranslator.
org.apache.beam.model.pipeline.v1.RunnerApi.FunctionSpec	translate(AppliedPTransform<?,?,Combine.PerKey<?,?,?>> transform, SdkComponents components) Translates the given transform represented by the provided AppliedPTransform to a FunctionSpec with a URN and a payload.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.beam.sdk.util.construction.PTransformTranslation.TransformPayloadTranslator

fromConfigRow, getUrn, toConfigRow

Method Detail

getUrn

public java.lang.String getUrn()

Description copied from interface: PTransformTranslation.TransformPayloadTranslator

Provides a unique URN for transforms represented by this TransformPayloadTranslator.

Specified by:

getUrn in interface PTransformTranslation.TransformPayloadTranslator<Combine.PerKey<?,?,?>>

translate

public org.apache.beam.model.pipeline.v1.RunnerApi.FunctionSpec translate(AppliedPTransform<?,?,Combine.PerKey<?,?,?>> transform,
                                                                          SdkComponents components)
                                                                   throws java.io.IOException

Description copied from interface: PTransformTranslation.TransformPayloadTranslator

Translates the given transform represented by the provided AppliedPTransform to a FunctionSpec with a URN and a payload.

Specified by:

translate in interface PTransformTranslation.TransformPayloadTranslator<Combine.PerKey<?,?,?>>

Parameters:

transform - an AppliedPTransform that includes the transform to be expanded.

components - components of the pipeline that includes the transform.

Returns:

a generated spec for the transform to be included in the pipeline proto. If return value is null, transform should include an empty spec.

Throws:

java.io.IOException