com.google.cloud.dataflow.sdk.runners

Class DataflowPipelineRunner.StreamingPubsubIOWrite<T>

java.lang.Object

com.google.cloud.dataflow.sdk.transforms.PTransform<PCollection<T>,PDone>

com.google.cloud.dataflow.sdk.runners.DataflowPipelineRunner.StreamingPubsubIOWrite<T>

All Implemented Interfaces:

Serializable

Enclosing class:

DataflowPipelineRunner

public static class DataflowPipelineRunner.StreamingPubsubIOWrite<T>
extends PTransform<PCollection<T>,PDone>

Specialized implementation for PubsubIO.Write for the Dataflow runner in streaming mode.

For internal use only. Subject to change at any time.

Public so the PubsubIOTranslator can access.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.google.cloud.dataflow.sdk.transforms.PTransform

name

Constructor Summary

Constructors

Constructor and Description
StreamingPubsubIOWrite(PubsubIO.Write.Bound<T> transform) Builds an instance of this class from the overridden transform.

Method Summary

Modifier and Type	Method and Description
PDone	apply(PCollection<T> input) Applies this PTransform on the given InputT, and returns its Output.
protected String	getKindString() Returns the name to use by default for this PTransform (not including the names of any enclosing PTransforms).
PubsubIO.Write.Bound<T>	getOverriddenTransform()

Methods inherited from class com.google.cloud.dataflow.sdk.transforms.PTransform

getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getName, toString, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamingPubsubIOWrite

public StreamingPubsubIOWrite(PubsubIO.Write.Bound<T> transform)

Builds an instance of this class from the overridden transform.

Method Detail

getOverriddenTransform

public PubsubIO.Write.Bound<T> getOverriddenTransform()

apply

public PDone apply(PCollection<T> input)

Description copied from class: PTransform

Applies this PTransform on the given InputT, and returns its Output.

Composite transforms, which are defined in terms of other transforms, should return the output of one of the composed transforms. Non-composite transforms, which do not apply any transforms internally, should return a new unbound output and register evaluators (via backend-specific registration methods).

The default implementation throws an exception. A derived class must either implement apply, or else each runner must supply a custom implementation via PipelineRunner.apply(com.google.cloud.dataflow.sdk.transforms.PTransform<InputT, OutputT>, InputT).

Overrides:

apply in class PTransform<PCollection<T>,PDone>

getKindString

protected String getKindString()

Description copied from class: PTransform

Returns the name to use by default for this PTransform (not including the names of any enclosing PTransforms).

By default, returns the base name of this PTransform's class.

The caller is responsible for ensuring that names of applied PTransforms are unique, e.g., by adding a uniquifying suffix when needed.

Overrides:

getKindString in class PTransform<PCollection<T>,PDone>