[jira] Commented: (MAPREDUCE-2226) TaggedInputSplit should be public

["Tom White (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12973843#action_12973843 ] 

Tom White commented on MAPREDUCE-2226:
--------------------------------------

Can we mark all the other public methods of TaggedInputSplit as @InterfaceAudience.Private? Also do the same for the mapreduce API. It would also be a good idea to update the javadoc of MultipleInputs to mention the use case you are enabling. TaggedInputSplit should reference MultipleInputs in its javadoc too.

> TaggedInputSplit should be public
> ---------------------------------
>
>                 Key: MAPREDUCE-2226
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2226
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 0.20.1
>            Reporter: E. Sammer
>            Assignee: E. Sammer
>         Attachments: MAPREDUCE-2226.diff
>
>
> Currently it's not possible to get at the original InputSplits when using MultipleInputs. This is because TaggedInputSplit (used by DelegatingInputFormat used by MultipleInputs) is not public. This means things like the following do not work:
> {code}
> public void map(...) {
>   FileSplit fis = (FileSplit)((TaggedInputSplit) reporter.getInputSplit()).getInputSplit();
>   Path p = fis.getPath();
> }
> {code}
> This prevents users from getting at input split specific data.

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