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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2016/04/18 18:13:25 UTC
[jira] [Commented] (FLINK-3708) Scala API for CEP
[ https://issues.apache.org/jira/browse/FLINK-3708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15245917#comment-15245917 ]
ASF GitHub Bot commented on FLINK-3708:
---------------------------------------
GitHub user StefanRRichter opened a pull request:
https://github.com/apache/flink/pull/1905
[FLINK-3708] Scala API for CEP (initial).
This module flink-cep-scala adds a Scala pendant for the Java CEP API to Flink.
I created Scala classes for Pattern and PatternStream, helper classes, as well as corresponding tests.
PatternStream in flink-cep is extended to obtain explicit TypeInformation from Scala code.
Pattern in flink-cep is slightly modified in the type parameters for member previous.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/StefanRRichter/flink dev-cep-scala
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1905.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 #1905
----
commit 306210da82c94f6770e22690799a3f1af9a877e7
Author: Stefan Richter <st...@gmail.com>
Date: 2016-04-18T11:10:09Z
Preparations in Pattern and PatternStream of flink-cep to support flink-cep-scala functionality.
commit 731d96ae78c4dc1b7125966900886225374a3eb5
Author: Stefan Richter <st...@gmail.com>
Date: 2016-04-18T11:10:35Z
Initial commit for flink-cep-scala API.
commit 7da7c14787226d9aa5914a138f632b8b6d5f1335
Author: Stefan Richter <st...@gmail.com>
Date: 2016-04-18T13:48:51Z
[FLINK-3708] Added missing test dependency to pom.
commit 1468bd91aea7d2a757ddeea8b8506b5ad9f3d289
Author: Stefan Richter <st...@gmail.com>
Date: 2016-04-18T14:50:53Z
[FLINK-3708] Pattern in Scala API now uses Option to shield users against null values from the Java API
commit 9ad8719c5b8767ec2fb0425f55cc7df105e36bcb
Author: Stefan Richter <st...@gmail.com>
Date: 2016-04-18T16:04:35Z
[FLINK-3708] Added test-jar for build phase to pom.
----
> Scala API for CEP
> -----------------
>
> Key: FLINK-3708
> URL: https://issues.apache.org/jira/browse/FLINK-3708
> Project: Flink
> Issue Type: Improvement
> Components: CEP
> Affects Versions: 1.1.0
> Reporter: Till Rohrmann
> Assignee: Stefan Richter
>
> Currently, The CEP library does not support Scala case classes, because the {{TypeExtractor}} cannot handle them. In order to support them, it would be necessary to offer a Scala API for the CEP library.
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