PipelineRunner (Google Cloud Dataflow SDK 1.9.1 API)

Google Cloud Dataflow SDK for Java, version 1.9.1

Warning: Cloud Dataflow SDK 1.x for Java is unsupported as of October 16, 2018. See Migrating from Cloud Dataflow SDK 1.x for Java for migration guidance.

Note: If you are using Cloud Dataflow SDK version 2.x, see the Apache Beam API reference documentation.

com.google.cloud.dataflow.sdk.runners

Class PipelineRunner<ResultT extends PipelineResult>

• java.lang.Object
• • com.google.cloud.dataflow.sdk.runners.PipelineRunner<ResultT>

• Type Parameters:

  ResultT - the type of the result of run(com.google.cloud.dataflow.sdk.Pipeline).

  Direct Known Subclasses:

  BlockingDataflowPipelineRunner, DataflowPipelineRunner, DirectPipelineRunner, InProcessPipelineRunner, TemplatingDataflowPipelineRunner, TestDataflowPipelineRunner

  ---

  
  

  public abstract class PipelineRunner<ResultT extends PipelineResult>
  extends Object

  A PipelineRunner can execute, translate, or otherwise process a Pipeline.

• • Constructor Summary

    Constructors 

    Constructor and Description
    PipelineRunner()

  • Method Summary

    All Methods Static Methods Instance Methods Abstract Methods Concrete Methods 

    Modifier and Type	Method and Description
    <OutputT extends POutput,InputT extends PInput> OutputT	apply(PTransform<InputT,OutputT> transform, InputT input) Applies a transform to the given input, returning the output.
    static PipelineRunner<? extends PipelineResult>	fromOptions(PipelineOptions options) Constructs a runner from the provided options.
    abstract ResultT	run(Pipeline pipeline) Processes the given Pipeline, returning the results.

    • Methods inherited from class java.lang.Object

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

• • Constructor Detail

    • PipelineRunner

      public PipelineRunner()

  • Method Detail

    • fromOptions

      public static PipelineRunner<? extends PipelineResult> fromOptions(PipelineOptions options)

      Constructs a runner from the provided options.

      Returns:

      The newly created runner.

    • run

      public abstract ResultT run(Pipeline pipeline)

      Processes the given Pipeline, returning the results.

    • apply

      public <OutputT extends POutput,InputT extends PInput> OutputT apply(PTransform<InputT,OutputT> transform,
                                                                           InputT input)

      Applies a transform to the given input, returning the output.

      The default implementation calls PTransform.apply(input), but can be overridden to customize behavior for a particular runner.