ProcessWindowFunction

[苗元君]

I read the doc about ProcessWindowFunction

But I the code on the flink demo is incorrect

public class MyProcessWindowFunction extends ProcessWindowFunction<Tuple<String, Long>, String, String, TimeWindow> {

Tuple cannot have to parameter.

I try to find a demo which ProcessWindowFunction used in window word count demo,

I can not even find a complete correct demo with ProcessWindowFunction.

Can any one show me how to use ProcessWindowFunction in wordcount window function with .process(ProcessWindowFunction) ?

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[vino yang]

Hi yuanjun,

There are very few examples of ProcessWindowFunction, but there are some implementations for testing in Flink's source code for your reference.[1]

[1]: https://github.com/apache/flink/blob/master/flink-streaming-scala/src/test/scala/org/apache/flink/streaming/api/scala/WindowTranslationTest.scala#L192

Thanks, vino.

苗元君 <[hidden email]> 于2018年8月9日周四 上午10:11写道：

I read the doc about ProcessWindowFunction

But I the code on the flink demo is incorrect

public class MyProcessWindowFunction extends ProcessWindowFunction<Tuple<String, Long>, String, String, TimeWindow> {

Tuple cannot have to parameter.

I try to find a demo which ProcessWindowFunction used in window word count demo,

I can not even find a complete correct demo with ProcessWindowFunction.

Can any one show me how to use ProcessWindowFunction in wordcount window function with .process(ProcessWindowFunction) ?

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