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

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-4641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15820896#comment-15820896 ] 

ASF GitHub Bot commented on FLINK-4641:
---------------------------------------

GitHub user chermenin opened a pull request:

    https://github.com/apache/flink/pull/3105

    [FLINK-4641] Support branching CEP patterns

    Support for branched CEP patterns was added in this PR.
    After merging that we will be able to use follow code to define more complex patterns:
    
    ```
    Pattern<T, ?> pattern = EventPattern.<T>event("start")
        .next(
            Pattern.or(
    	    EventPattern.<T>event("middle_1").subtype(F.class)),
    	    EventPattern.<T>event("middle_2").where(new MyFilterFunction())
            ))
        .followedBy(EventPattern.<T>event("end"));
    ```
    
    This PR will close https://issues.apache.org/jira/browse/FLINK-4641.

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/chermenin/flink flink-4641

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/3105.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #3105
    
----
commit 026ada648d1277fd57f2fb2361a36bf0c8f5e57b
Author: Aleksandr Chermenin <al...@epam.com>
Date:   2017-01-12T09:54:44Z

    [FLINK-4641] Base Java implementation.

commit f82fc8386493e84e824110a26d5e059333efaec0
Author: Aleksandr Chermenin <al...@epam.com>
Date:   2017-01-12T10:07:53Z

    [FLINK-4641] Fixed branching pattern.

commit ad074e2e2c1faf8571b8b8e7ce3144c0fbc5e31d
Author: Aleksandr Chermenin <al...@epam.com>
Date:   2017-01-12T10:21:15Z

    [FLINK-4641] Fixed Scala API.

commit 38e14a89b001bd443133746216d422ac46176c3f
Author: Aleksandr Chermenin <al...@epam.com>
Date:   2017-01-12T10:56:22Z

    [FLINK-4641] Fixed tests for Scala API.

commit 9ba130df964ece5b8756e8b46b6ec22dcde69877
Author: Aleksandr Chermenin <al...@epam.com>
Date:   2017-01-12T12:15:01Z

    [FLINK-4641] Fixed CEP Java 8 lambda test.

commit 8d490aae497e85003a402ca6c1fd687e30c3b55f
Author: Aleksandr Chermenin <al...@epam.com>
Date:   2017-01-12T12:24:52Z

    [FLINK-4641] Improved code documentation.

----


> 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
>            Assignee: Alexander Chermenin
>
> 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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