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https://issues.apache.org/jira/browse/FLINK-4641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15512390#comment-15512390
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Ivan Mushketyk commented on FLINK-4641:
---------------------------------------

Hi [~kervel]

I think the method chaining will allow nested branching, but it may be a bit 
cumbersome. The first option with nested method calls seems to be a simpler 
option, but changes the API style a bit.


> Support branching CEP patterns 
> -------------------------------
>
>                 Key: FLINK-4641
>                 URL: https://issues.apache.org/jira/browse/FLINK-4641
>             Project: Flink
>          Issue Type: Improvement
>          Components: CEP
>            Reporter: Till Rohrmann
>
> 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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