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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3801) Change the job state observer classes to interfaces
Date Mon, 21 Jul 2008 17:21:31 GMT
Change the job state observer classes to interfaces
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                 Key: HADOOP-3801
                 URL: https://issues.apache.org/jira/browse/HADOOP-3801
             Project: Hadoop Core
          Issue Type: Improvement
            Reporter: Owen O'Malley
            Assignee: Vivek Ratan


Schedulers will most often want to be the observers of the job state events in a single class.
Therefore, I think they should  be interfaces which can have multiple inheritance.

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