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https://issues.apache.org/jira/browse/FLINK-8919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16398162#comment-16398162
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ASF GitHub Bot commented on FLINK-8919:
---------------------------------------
Github user liurenjie1024 commented on the issue:
https://github.com/apache/flink/pull/5680
@bowenli86 @fhueske UT added.
This class is a utility class which can be the base class of many process
function implementations in flink table. Its counterpart for the legacy
`ProcessFunction `interface, `ProcessFunctionWithCleanupState`, has been
inherited by many implementations. In fact, my other
[PR](https://github.com/apache/flink/pull/5688) depends on this.
> Add KeyedProcessFunctionWIthCleanupState
> ----------------------------------------
>
> Key: FLINK-8919
> URL: https://issues.apache.org/jira/browse/FLINK-8919
> Project: Flink
> Issue Type: Improvement
> Components: Core
> Affects Versions: 1.6.0
> Reporter: Renjie Liu
> Assignee: Renjie Liu
> Priority: Minor
> Fix For: 1.6.0
>
>
> ProcessFunctionWithCleanupState is a useful tool and I think we also need one
> for the new KeyedProcessFunction api.
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