Hi,  there are two methods on the Context object that a process() invocation
receives that allows access to the two types of state:

   - globalState(), which allows access to keyed state that is not scoped
   to a window
   - windowState(), which allows access to keyed state that is also scoped
   to the window

maybe you can refer to the implementation of WindowReaderTest
<https://github.com/apache/flink/blob/master/flink-libraries/flink-state-processing-api/src/test/java/org/apache/flink/state/api/input/WindowReaderTest.java>
.

Best,
Yanfei

2022年8月18日 上午10:05,曲洋 <quyanghao...@126.com> 写道:

Hi dear engineers,

I have one question:  does flink streaming support getting the state.I
override the open method in the map processor,initializing the state(some
metric for the data) .How can I get the state in my window?

Thanks for your help!

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