[jira] Created: (HADOOP-5720) Create enum for the TaskTypes (Map, Reduce, JobSetup, JobCleanup, TaskCleanup)

[Devaraj Das (JIRA)]

Create enum for the TaskTypes (Map, Reduce, JobSetup, JobCleanup, TaskCleanup)
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                 Key: HADOOP-5720
                 URL: https://issues.apache.org/jira/browse/HADOOP-5720
             Project: Hadoop Core
          Issue Type: Sub-task
          Components: mapred
    Affects Versions: 0.19.0
            Reporter: Devaraj Das
            Assignee: Devaraj Das
             Fix For: 0.21.0


Create enum for the TaskTypes - Map, Reduce, JobSetup, JobCleanup, TaskCleanup. 
Change the framework to use these enum constants and remove usages of booleans 
like isMap.

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