com.google.cloud.dataflow.sdk.values

Class PDone

java.lang.Object

com.google.cloud.dataflow.sdk.values.POutputValueBase

com.google.cloud.dataflow.sdk.values.PDone

All Implemented Interfaces:

POutput

public class PDone
extends POutputValueBase

PDone is the output of a PTransform that doesn't have a non-trival result, e.g., a Write. No more transforms can be applied to it.

Method Summary

Modifier and Type	Method and Description
Collection<? extends PValue>	expand() Expands this POutput into a list of its component output PValues.
static PDone	in(Pipeline pipeline) Creates a PDone in the given Pipeline.

Methods inherited from class com.google.cloud.dataflow.sdk.values.POutputValueBase

finishSpecifyingOutput, getPipeline, getProducingTransformInternal, recordAsOutput

Methods inherited from class java.lang.Object

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

Method Detail

in

public static PDone in(Pipeline pipeline)

Creates a PDone in the given Pipeline.

expand

public Collection<? extends PValue> expand()

Description copied from interface: POutput

Expands this POutput into a list of its component output PValues.

A PValue expands to itself.

A tuple or list of PValues (e.g., PCollectionTuple, and PCollectionList) expands to its component PValues.

Not intended to be invoked directly by user code.