DoFnWithContext.ProcessElement (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

Annotation Type DoFnWithContext.ProcessElement

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  @Documented
   @Retention(value=RUNTIME)
   @Target(value=METHOD)
  public static @interface DoFnWithContext.ProcessElement

  Annotation for the method to use for processing elements. A subclass of DoFnWithContext must have a method with this annotation satisfying the following constraints in order for it to be executable:

  • It must have at least one argument.
  • Its first argument must be a DoFnWithContext.ProcessContext.
  • Its remaining arguments must be BoundedWindow, or WindowingInternals<InputT, OutputT>.