CombineFnBase (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 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()