[jira] [Comment Edited] (FLINK-4641) Support branching CEP patterns

["Dian Fu (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-4641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16076189#comment-16076189 ] 

Dian Fu edited comment on FLINK-4641 at 7/6/17 9:01 AM:
--------------------------------------------------------

[~dawidwys] [~kkl0u] 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}}




was (Author: dian.fu):
@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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