[jira] [Commented] (FLINK-2152) Provide zipWithIndex utility in flink-contrib

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

    [ https://issues.apache.org/jira/browse/FLINK-2152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14584840#comment-14584840 ] 

ASF GitHub Bot commented on FLINK-2152:
---------------------------------------

GitHub user andralungu opened a pull request:

    https://github.com/apache/flink/pull/832

    [FLINK-2152] Added zipWithIndex 

    This PR adds the zipWithIndex utility method to Flink's DataSetUtils as described in the mailing list discussion: http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/The-correct-location-for-zipWithIndex-and-zipWithUniqueId-td6310.html. 
    
    The method could, in the future, be moved to DataSet. 
    
    @fhueske , @tillrohrmann , once we reach a conclusion for this one, I will also update #801 (I wouldn't like to fix unnecessary merge conflicts). 
    
    Once zipWIthUniqueIds is added, I could also explain the difference in the docs. 

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

    $ git pull https://github.com/andralungu/flink zipWithIndex

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

    https://github.com/apache/flink/pull/832.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 #832
    
----
commit fdbf0167cc10e952faddc2a7d71e73e7f1f2d03f
Author: andralungu <lu...@gmail.com>
Date:   2015-06-12T18:37:27Z

    [FLINK-2152] zipWithIndex implementation
    
    [FLINK-2152] Added zipWithIndex utility method

----


> Provide zipWithIndex utility in flink-contrib
> ---------------------------------------------
>
>                 Key: FLINK-2152
>                 URL: https://issues.apache.org/jira/browse/FLINK-2152
>             Project: Flink
>          Issue Type: Improvement
>          Components: Java API
>            Reporter: Robert Metzger
>            Assignee: Andra Lungu
>            Priority: Trivial
>              Labels: starter
>
> We should provide a simple utility method for zipping elements in a data set with a dense index.
> its up for discussion whether we want it directly in the API or if we should provide it only as a utility from {{flink-contrib}}.
> I would put it in {{flink-contrib}}.
> See my answer on SO: http://stackoverflow.com/questions/30596556/zipwithindex-on-apache-flink



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