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 <miaoyuan...@gmail.com> 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) ? > > -- > > *Yuanjun Miao* >
