View.CreatePCollectionView (Google Cloud Dataflow SDK 1.9.1 API)

Google Cloud Dataflow SDK for Java, version 1.9.1

Warning: Dataflow SDK 1.x for Java is unsupported as of October 16, 2018. After August 12, 2020, you can use unsupported SDKs temporarily while you upgrade your pipelines. For more information, see Using an unsupported SDK.

For information on migrating from the 1.x SDK, see Migrating from Dataflow SDK 1.x for Java.

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

com.google.cloud.dataflow.sdk.transforms

Class View.CreatePCollectionView<ElemT,ViewT>

• java.lang.Object
• • com.google.cloud.dataflow.sdk.transforms.PTransform<PCollection<ElemT>,PCollectionView<ViewT>>
  • • com.google.cloud.dataflow.sdk.transforms.View.CreatePCollectionView<ElemT,ViewT>

• Type Parameters:

  ElemT - The type of the elements of the input PCollection

  ViewT - The type associated with the PCollectionView used as a side input

  All Implemented Interfaces:

  HasDisplayData, Serializable

  Enclosing class:

  View

  ---

  
  

  public static class View.CreatePCollectionView<ElemT,ViewT>
  extends PTransform<PCollection<ElemT>,PCollectionView<ViewT>>

  Creates a primitive PCollectionView.

  For internal use only by runner implementors.

  See Also:

  Serialized Form

• • Field Summary

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

      name

  • Method Summary

    All Methods Static Methods Instance Methods Concrete Methods 

    Modifier and Type	Method and Description
    PCollectionView<ViewT>	apply(PCollection<ElemT> input) Applies this PTransform on the given InputT, and returns its Output.
    PCollectionView<ViewT>	getView()
    static <ElemT,ViewT> View.CreatePCollectionView<ElemT,ViewT>	of(PCollectionView<ViewT> view)

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

      getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, populateDisplayData, toString, validate

    • Methods inherited from class java.lang.Object

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

• • Method Detail

    • of

      public static <ElemT,ViewT> View.CreatePCollectionView<ElemT,ViewT> of(PCollectionView<ViewT> view)

    • getView

      public PCollectionView<ViewT> getView()

    • apply

      public PCollectionView<ViewT> apply(PCollection<ElemT> 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<ElemT>,PCollectionView<ViewT>>