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https://issues.apache.org/jira/browse/FLINK-4641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16079997#comment-16079997
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Dawid Wysakowicz commented on FLINK-4641:
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I think {{a b1 c1 c2 d2 e}} is a valid output for that case, whereas the {{a d1
d2 e}} is not.
For the second case as we use {{SKIP_TILL_NEXT}} the group already started with
{{b1 c1}}, so it should not start with {{d1}}.
In the first case, as we do not stop accepting events into a looping state
right now(if there is no timeout or {{until}} condition), I think the given
example is valid.
What do you think? [~dian.fu]
> 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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