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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1231) Add generics to Mapper and Reducer interfaces
Date Sun, 05 Aug 2007 20:33:29 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12517788
] 

Tom White commented on HADOOP-1231:
-----------------------------------

Hmm. Hudson says that patching src/test/checkstyle.xml failed, but it is OK when I try it
on my machine. (I've made a change that says documentation for a class' type parameters is
not always required - which is consistent with the JDK for example. See http://checkstyle.sourceforge.net/config_javadoc.html#JavadocType)

Nigel - any ideas?

> Add generics to Mapper and Reducer interfaces
> ---------------------------------------------
>
>                 Key: HADOOP-1231
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1231
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Owen O'Malley
>            Assignee: Tom White
>             Fix For: 0.15.0
>
>         Attachments: HADOOP-1231.patch, HADOOP-1231.patch, MapReduceTypes.html
>
>
> By making the input and output types of the Mapper and Reducers generic, we can get the
information from the classes and not require the user to set them in the configuration.

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