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https://issues.apache.org/jira/browse/FLINK-3320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15988791#comment-15988791
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ASF GitHub Bot commented on FLINK-3320:
---------------------------------------
GitHub user dawidwys opened a pull request:
https://github.com/apache/flink/pull/3798
[FLINK-3320] Add not operator to CEP's pattern API
Thanks for contributing to Apache Flink. Before you open your pull request,
please take the following check list into consideration.
If your changes take all of the items into account, feel free to open your
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You can merge this pull request into a Git repository by running:
$ git pull https://github.com/dawidwys/flink cep-notFollow-pr
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3798.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 #3798
----
commit 80b9cdc8ef0be9d1af23122b50f0b592c49f0268
Author: Dawid Wysakowicz <da...@getindata.com>
Date: 2017-04-28T13:24:37Z
[FLINK-3320] Add not operator to CEP's pattern API
----
> Add not operator to CEP's pattern API
> -------------------------------------
>
> Key: FLINK-3320
> URL: https://issues.apache.org/jira/browse/FLINK-3320
> Project: Flink
> Issue Type: Improvement
> Components: CEP
> Affects Versions: 1.0.0
> Reporter: Till Rohrmann
> Assignee: Dawid Wysakowicz
> Priority: Minor
>
> Currently, CEP's pattern API is lacking a {{not}} operator which would you
> allow to define which events must not occur in a matched pattern. It would be
> beneficial to add this operator in order to increase the set of supported
> patterns.
> {code}
> Pattern.begin("start").where(...).followedBy("middle").notFollowedBy("not").where(...).notNext("not2").where(...)
> {code}
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