org.apache.beam.sdk.values

Class PDone

java.lang.Object

org.apache.beam.sdk.values.POutputValueBase

org.apache.beam.sdk.values.PDone

All Implemented Interfaces:

POutput

public class PDone
extends POutputValueBase

PDone is the output of a PTransform that has a trivial result, such as a Write.

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 org.apache.beam.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 (such as PCollectionTuple or PCollectionList) expands to its component PValue PValues.

Not intended to be invoked directly by user code.