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Posted to issues@flink.apache.org by "Dian Fu (JIRA)" <ji...@apache.org> on 2017/07/06 09:01:09 UTC
[jira] [Commented] (FLINK-4641) Support branching CEP patterns
[ https://issues.apache.org/jira/browse/FLINK-4641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16076189#comment-16076189 ]
Dian Fu commented on FLINK-4641:
--------------------------------
@dawidwys @kl0u I'm currently working this ticket. I have some doubt and want to hear your thought.
For pattern: {{a (b | (c d)) e}} and inputs {{a b c d e}}, what do you think the output should be?
1) {{a b e}}
or
2) {{a b e}} and {{a c d e}}
> 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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