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From "Robert Metzger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1138) Allow users to specify methods instead of fields in key expressions
Date Sun, 05 Oct 2014 14:08:34 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159531#comment-14159531
] 

Robert Metzger commented on FLINK-1138:
---------------------------------------

Yes, I didn't think enough about the implications.
Lets wait and see if there are requests for this ...

> Allow users to specify methods instead of fields in key expressions
> -------------------------------------------------------------------
>
>                 Key: FLINK-1138
>                 URL: https://issues.apache.org/jira/browse/FLINK-1138
>             Project: Flink
>          Issue Type: Improvement
>          Components: Java API
>            Reporter: Robert Metzger
>            Priority: Minor
>
> Currently, users can specify grouping fields only on the fields of a POJO.
> It would be nice to allow users also to name a method (such as "getVertexId()") to be
called.



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