com.google.cloud.dataflow.sdk.transforms.windowing

Class NonMergingWindowingFn<T,W extends BoundedWindow>

java.lang.Object

com.google.cloud.dataflow.sdk.transforms.windowing.WindowingFn<T,W>

com.google.cloud.dataflow.sdk.transforms.windowing.NonMergingWindowingFn<T,W>

Type Parameters:

T - type of elements being windowed

W - BoundedWindow subclass used to represent the windows used by this WindowingFn

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

GlobalWindow, PartitioningWindowingFn, SlidingWindows

public abstract class NonMergingWindowingFn<T,W extends BoundedWindow>
extends WindowingFn<T,W>

Abstract base class for WindowingFns that do not merge windows.

See Also:

Serialized Form

Nested Class Summary

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

WindowingFn.AssignContext, WindowingFn.MergeContext

Constructor Summary

Constructors

Constructor and Description
NonMergingWindowingFn()

Method Summary

Methods

Modifier and Type	Method and Description
void	mergeWindows(WindowingFn.MergeContext c) Does whatever merging of windows is necessary.

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

assignWindows, isCompatible, windowCoder

Methods inherited from class java.lang.Object

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

Constructor Detail

NonMergingWindowingFn

public NonMergingWindowingFn()

Method Detail

mergeWindows

public final void mergeWindows(WindowingFn.MergeContext c)

Description copied from class: WindowingFn

Does whatever merging of windows is necessary.

See MergeOverlappingIntervalWindows.mergeWindows(com.google.cloud.dataflow.sdk.transforms.windowing.WindowingFn<?, com.google.cloud.dataflow.sdk.transforms.windowing.IntervalWindow>.MergeContext) for an example of how to override this method.

Specified by:

mergeWindows in class WindowingFn<T,W extends BoundedWindow>