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https://issues.apache.org/jira/browse/FLINK-14950?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16984853#comment-16984853
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Biao Liu commented on FLINK-14950:
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Hi [~wind_ljy], thanks for explanation.
I'm not sure I have fully understood your requirement. I guess there are a lot
of other details in your scenario. Anyway regardless others, it seems that you
want a periodic checking for each key (chatting room) in window operator. I'm
wondering it's general enough. For example, what if someone else wants a
periodic checking based on other fields (not the key)? It's a bit customized
from my perspective.
> Support getKey in WindowOperator.Context
> ----------------------------------------
>
> Key: FLINK-14950
> URL: https://issues.apache.org/jira/browse/FLINK-14950
> Project: Flink
> Issue Type: Improvement
> Components: API / DataStream
> Affects Versions: 1.9.1
> Reporter: Jiayi Liao
> Priority: Major
>
> In our scenario, user needs to access the key of {{WindowOperator.Context}}
> to determine how to deal with the window.
> I think it's reasonable to support {{getKey()}} method in
> {{WindowOperator.Context}}.
> cc [~aljoscha]
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