GlobalWindows (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.windowing

Class GlobalWindows

• java.lang.Object
• • com.google.cloud.dataflow.sdk.transforms.windowing.WindowFn<T,W>
  • • com.google.cloud.dataflow.sdk.transforms.windowing.NonMergingWindowFn<Object,GlobalWindow>
    • • com.google.cloud.dataflow.sdk.transforms.windowing.GlobalWindows

• All Implemented Interfaces:

  HasDisplayData, Serializable

  ---

  
  

  public class GlobalWindows
  extends NonMergingWindowFn<Object,GlobalWindow>

  Default WindowFn that assigns all data to the same window.

  See Also:

  Serialized Form

• • Nested Class Summary

    • Nested classes/interfaces inherited from class com.google.cloud.dataflow.sdk.transforms.windowing.WindowFn

      WindowFn.AssignContext, WindowFn.MergeContext

  • Constructor Summary

    Constructors 

    Constructor and Description
    GlobalWindows()

  • Method Summary

    All Methods Instance Methods Concrete Methods 

    Modifier and Type	Method and Description
    boolean	assignsToSingleWindow() Returns true if this WindowFn assigns each element to a single window.
    Collection<GlobalWindow>	assignWindows(WindowFn.AssignContext c) Given a timestamp and element, returns the set of windows into which it should be placed.
    Instant	getOutputTime(Instant inputTimestamp, GlobalWindow window)
    GlobalWindow	getSideInputWindow(BoundedWindow window) Returns the window of the side input corresponding to the given window of the main input.
    boolean	isCompatible(WindowFn<?,?> o) Returns whether this performs the same merging as the given WindowFn.
    Coder<GlobalWindow>	windowCoder() Returns the Coder used for serializing the windows used by this windowFn.

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

      isNonMerging, mergeWindows

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

      getOutputTimeFn, populateDisplayData

    • Methods inherited from class java.lang.Object

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

• • Constructor Detail

    • GlobalWindows

      public GlobalWindows()

  • Method Detail

    • assignWindows

      public Collection<GlobalWindow> assignWindows(WindowFn.AssignContext c)

      Description copied from class: WindowFn
      Given a timestamp and element, returns the set of windows into which it should be placed.

      Specified by:

      assignWindows in class WindowFn<Object,GlobalWindow>

    • isCompatible

      public boolean isCompatible(WindowFn<?,?> o)

      Description copied from class: WindowFn
      Returns whether this performs the same merging as the given WindowFn.

      Specified by:

      isCompatible in class WindowFn<Object,GlobalWindow>

    • windowCoder

      public Coder<GlobalWindow> windowCoder()

      Description copied from class: WindowFn
      Returns the Coder used for serializing the windows used by this windowFn.

      Specified by:

      windowCoder in class WindowFn<Object,GlobalWindow>

    • getSideInputWindow

      public GlobalWindow getSideInputWindow(BoundedWindow window)

      Description copied from class: WindowFn
      Returns the window of the side input corresponding to the given window of the main input.

      Authors of custom WindowFns should override this.

      Specified by:

      getSideInputWindow in class WindowFn<Object,GlobalWindow>

    • assignsToSingleWindow

      public boolean assignsToSingleWindow()

      Description copied from class: WindowFn
      Returns true if this WindowFn assigns each element to a single window.

      Overrides:

      assignsToSingleWindow in class WindowFn<Object,GlobalWindow>

    • getOutputTime

      public Instant getOutputTime(Instant inputTimestamp,
                                   GlobalWindow window)

      Overrides:

      getOutputTime in class WindowFn<Object,GlobalWindow>