IN- The type of the input value.
OUT- The type of the output value.
W- The type of
Windowthat this window function can be applied on.
@Public public interface AllWindowFunction<IN,OUT,W extends Window> extends Function, Serializable
|Modifier and Type||Method and Description|
Evaluates the window and outputs none or several elements.
void apply(W window, Iterable<IN> values, Collector<OUT> out) throws Exception
window- The window that is being evaluated.
values- The elements in the window being evaluated.
out- A collector for emitting elements.
Exception- The function may throw exceptions to fail the program and trigger recovery.
Copyright © 2014–2022 The Apache Software Foundation. All rights reserved.