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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-954) The new interface's Context objects should be interfaces
Date Thu, 17 Sep 2009 21:53:58 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-954?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-954:
------------------------------------

    Attachment: MAPREDUCE-954.patch

Here is an updated patch which shows the plan to use the new org.apache.hadoop.mapreduce.lib.{map|reduce}.Wrapped{Mapper|Reducer}
to completely get away from the ugly hacks for mrunit, Chain{Mapper|Reducer} etc.

> The new interface's Context objects should be interfaces
> --------------------------------------------------------
>
>                 Key: MAPREDUCE-954
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-954
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client
>            Reporter: Owen O'Malley
>            Assignee: Arun C Murthy
>             Fix For: 0.21.0
>
>         Attachments: MAPREDUCE-954.patch, MAPREDUCE-954.patch, MAPREDUCE-954.patch, MAPREDUCE-954.patch
>
>
> When I was doing HADOOP-1230, I was persuaded to make the Context objects as classes.
I think that was a serious mistake. It caused a lot of information leakage into the public
classes.

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