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https://issues.apache.org/jira/browse/FLINK-4641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16121550#comment-16121550
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zhangxiaoyu commented on FLINK-4641:
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I have two cases to discuss with you.
(a*|b*)c with strategy SKIP_TILL_NEXT, when event c comes, both branches
are matched, so output {c, c}, should it be like this?
(a|~b)a with strategy SKIP_TILL_NEXT, when event a comes, output {a, a}?
Please have a look at my design doc
https://docs.google.com/document/d/1YNjOYF7BagM4agx_TI6hQkmraVLT9ZpKhBsgHDGi-U8/edit#.
> Support branching CEP patterns
> -------------------------------
>
> Key: FLINK-4641
> URL: https://issues.apache.org/jira/browse/FLINK-4641
> Project: Flink
> Issue Type: Sub-task
> Components: CEP
> Reporter: Till Rohrmann
> Assignee: Dian Fu
>
> We should add support for branching CEP patterns to the Pattern API.
> {code}
> |--> B --|
> | |
> A -- --> D
> | |
> |--> C --|
> {code}
> This feature will require changes to the {{Pattern}} class and the
> {{NFACompiler}}.
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