com.google.cloud.dataflow.sdk.values

Interface PCollectionView<T>

Type Parameters:

T - the type of the value(s) accessible via this PCollectionView

All Superinterfaces:

PInput, POutput, PValue, java.io.Serializable

public interface PCollectionView<T>
extends PValue, java.io.Serializable

A PCollectionView<T> is an immutable view of a PCollection that can be accessed e.g. as a side input to a DoFn.

A PCollectionView should always be the output of a PTransform. It is the joint responsibility of this transform and each PipelineRunner to implement the view in a runner-specific manner.

Method Summary

Methods

Modifier and Type	Method and Description
T	fromIterableInternal(java.lang.Iterable<com.google.cloud.dataflow.sdk.util.WindowedValue<?>> contents) For internal use only.
TupleTag<java.lang.Iterable<com.google.cloud.dataflow.sdk.util.WindowedValue<?>>>	getTagInternal() A unique identifier, for internal use.
WindowFn	getWindowFnInternal() For internal use only.

Methods inherited from interface com.google.cloud.dataflow.sdk.values.PValue

getName, getProducingTransformInternal, setPipelineInternal

Methods inherited from interface com.google.cloud.dataflow.sdk.values.POutput

expand, finishSpecifyingOutput, recordAsOutput

Methods inherited from interface com.google.cloud.dataflow.sdk.values.PInput

expand, finishSpecifying, getPipeline

Method Detail

getTagInternal

TupleTag<java.lang.Iterable<com.google.cloud.dataflow.sdk.util.WindowedValue<?>>> getTagInternal()

A unique identifier, for internal use.

fromIterableInternal

T fromIterableInternal(java.lang.Iterable<com.google.cloud.dataflow.sdk.util.WindowedValue<?>> contents)

For internal use only.

getWindowFnInternal

WindowFn getWindowFnInternal()

For internal use only.