Package org.apache.beam.sdk.io

Class WriteFilesResult<DestinationT>

java.lang.Object

org.apache.beam.sdk.io.WriteFilesResult<DestinationT>

All Implemented Interfaces:

POutput

public class WriteFilesResult<DestinationT>
extends Object
implements POutput

The result of a WriteFiles transform.

Method Summary

Modifier and Type	Method	Description
Map<TupleTag<?>,PValue>	expand()	Expands this POutput into a list of its component output PValues.
void	finishSpecifyingOutput(String transformName, PInput input, PTransform<?,?> transform)	As part of applying the producing PTransform, finalizes this output to make it ready for being used as an input and for running.
PCollection<KV<DestinationT,String>>	getPerDestinationOutputFilenames()	Returns a PCollection of all output filenames generated by this WriteFiles organized by user destination type.
Pipeline	getPipeline()	Returns the owning Pipeline of this POutput.

Methods inherited from class java.lang.Object

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

Method Details

expand

public Map<TupleTag<?>,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.

Specified by:

expand in interface POutput

getPipeline

public Pipeline getPipeline()

Description copied from interface: POutput

Returns the owning Pipeline of this POutput.

Specified by:

getPipeline in interface POutput

finishSpecifyingOutput

public void finishSpecifyingOutput(String transformName,
 PInput input,
 PTransform<?,?> transform)

Description copied from interface: POutput

As part of applying the producing PTransform, finalizes this output to make it ready for being used as an input and for running.

This includes ensuring that all PCollections have Coders specified or defaulted.

Automatically invoked whenever this POutput is output, after POutput.finishSpecifyingOutput(String, PInput, PTransform) has been called on each component PValue returned by POutput.expand().

Specified by:

finishSpecifyingOutput in interface POutput

getPerDestinationOutputFilenames

public PCollection<KV<DestinationT,String>> getPerDestinationOutputFilenames()

Returns a PCollection of all output filenames generated by this WriteFiles organized by user destination type.