Hi Jiazhi, here is a description of Flink's windowing API and also how to use the windowState() and globalState() method of the ProcessWindowFunction [1].
[1] https://ci.apache.org/projects/flink/flink-docs-stable/dev/stream/operators/windows.html#using-per-window-state-in-processwindowfunction Cheers, Till On Tue, Oct 6, 2020 at 2:42 PM ゞ野蠻遊戲χ <zhoujiazhi1...@vip.qq.com> wrote: > Dear all: > > How do I use the windowsState() method and the globalState() method > in process Windows Function? Can I give a demo? > > Thanks, > Jiazhi >
