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https://issues.apache.org/jira/browse/FLINK-10327?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shimin Yang reassigned FLINK-10327:
-----------------------------------

    Assignee: Shimin Yang

> Pass processWatermark calls from (Co)ProcessOperator to (Co)ProcessFunction
> ---------------------------------------------------------------------------
>
>                 Key: FLINK-10327
>                 URL: https://issues.apache.org/jira/browse/FLINK-10327
>             Project: Flink
>          Issue Type: New Feature
>          Components: Streaming
>            Reporter: Piotr Nowojski
>            Assignee: Shimin Yang
>            Priority: Major
>
> Currently {{CoProcessFunction}} can not react to changes watermark 
> advancement. By passing {{processWatermark}} calls to function we would give 
> a way to perform some actions on watermark advancement, like state clean up 
> or emitting some results after accumulating some data.



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