CombineFnBase (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.transforms

Class CombineFnBase

• java.lang.Object
• • com.google.cloud.dataflow.sdk.transforms.CombineFnBase

• ---

  
  

  public class CombineFnBase
  extends Object

  This class contains the shared interfaces and abstract classes for different types of combine functions.

  Users should not implement or extend them directly.

• • Nested Class Summary

    Nested Classes 

    Modifier and Type	Class and Description
    static interface	CombineFnBase.GlobalCombineFn<InputT,AccumT,OutputT> A GloballyCombineFn<InputT, AccumT, OutputT> specifies how to combine a collection of input values of type InputT into a single output value of type OutputT.
    static interface	CombineFnBase.PerKeyCombineFn<K,InputT,AccumT,OutputT> A PerKeyCombineFn<K, InputT, AccumT, OutputT> specifies how to combine a collection of input values of type InputT, associated with a key of type K, into a single output value of type OutputT.

  • Constructor Summary

    Constructors 

    Constructor and Description
    CombineFnBase()

  • Method Summary

    • Methods inherited from class java.lang.Object

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

• • Constructor Detail

    • CombineFnBase

      public CombineFnBase()