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From "Matthias Friedrich (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CRUNCH-111) Reorganize CombineFn functionality
Date Sun, 11 Nov 2012 19:01:13 GMT
Matthias Friedrich created CRUNCH-111:
-----------------------------------------

             Summary: 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


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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