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From "Gabriel Reid (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CRUNCH-111) Reorganize CombineFn functionality
Date Wed, 14 Nov 2012 07:38:12 GMT

    [ https://issues.apache.org/jira/browse/CRUNCH-111?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13496923#comment-13496923
] 

Gabriel Reid commented on CRUNCH-111:
-------------------------------------

+1. Sorry for the super-slow uptake on this, the new job is using up all of my limited brain
resources. 
                
> Reorganize CombineFn functionality
> ----------------------------------
>
>                 Key: CRUNCH-111
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-111
>             Project: Crunch
>          Issue Type: Improvement
>    Affects Versions: 0.4.0
>            Reporter: Matthias Friedrich
>            Assignee: Matthias Friedrich
>         Attachments: CRUNCH-111-Reorganize-CombineFn-Aggregator-v3.patch
>
>
> CombineFn should be simplified to make it easier to use:
>   * Switch static factory methods from using CombineFn to Aggregator 
>   * Move all implementations to a new Aggregators class in org.apache.crunch.fn
>   * Expose implementation classes only through factory methods
> Additionally, extend the PGroupedTable interface to work with Aggregator instances directly.

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