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https://issues.apache.org/jira/browse/FLINK-6938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16700324#comment-16700324
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ASF GitHub Bot commented on FLINK-6938:
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dianfu commented on issue #4513: [FLINK-6938] [cep] IterativeCondition should
support RichFunction interface
URL: https://github.com/apache/flink/pull/4513#issuecomment-442037390
implemented in #7110
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> IterativeCondition should support RichFunction interface
> --------------------------------------------------------
>
> Key: FLINK-6938
> URL: https://issues.apache.org/jira/browse/FLINK-6938
> Project: Flink
> Issue Type: Sub-task
> Components: CEP
> Reporter: Jark Wu
> Assignee: Jark Wu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.8.0
>
>
> In FLIP-20, we need IterativeCondition to support an {{open()}} method to
> compile the generated code once. We do not want to insert a if condition in
> the {{filter()}} method. So I suggest make IterativeCondition support
> {{RichFunction}} interface.
> Things to be very careful about:
> * backwards compatibility (we previously serialized conditions) - changes to
> those interfaces have to be done carefully
> * we want to be able to add dynamic patterns in the future, so at some point
> we have to open also on control message arrival
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