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https://issues.apache.org/jira/browse/FLINK-5845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15875718#comment-15875718
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ASF GitHub Bot commented on FLINK-5845:
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GitHub user kl0u opened a pull request:
https://github.com/apache/flink/pull/3375
[FLINK-5845] [cep] Unify keyed and non-keyed operators.
This PR is the first step towards making the CEP library rescalable and
backwards compatible.
It just merges the keyed and non-keyed operators into a single, keyed one.
A more detailed
description can be found in the related JIRA.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kl0u/flink cep-unification
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3375.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 #3375
----
commit 5fec00f79e9deb14c136b55489e96555d9194d1c
Author: kl0u <[email protected]>
Date: 2017-02-16T11:02:25Z
[FLINK-5845] [cep] Unify keyed and non-keyed operators.
Now all cep operators are keyed, and for the non-keyed
usecases, we key on a dummy key and use the keyed operator.
----
> CEP: unify key and non-keyed operators
> --------------------------------------
>
> Key: FLINK-5845
> URL: https://issues.apache.org/jira/browse/FLINK-5845
> Project: Flink
> Issue Type: Sub-task
> Components: CEP
> Affects Versions: 1.3.0
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Fix For: 1.3.0
>
>
> Currently the keyed and non-keyed operators in the CEP library have different
> implementations. This issue targets to unify them into one.
> This new implementation will always be applied on a keyed stream, and in the
> case of non-keyed usecases, the input stream will be keyed on a dummy key, as
> done in the case of the {{DataStream.windowAll()}} method, where the input
> stream is keyed using the {{NullByteKeySelector}}.
> This is a first step towards making the CEP operators rescalable.
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