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Posted to common-dev@hadoop.apache.org by "Arun C Murthy (JIRA)" <ji...@apache.org> on 2008/01/09 21:14:33 UTC

[jira] Updated: (HADOOP-2268) JobControl classes should use interfaces rather than implemenations

     [ https://issues.apache.org/jira/browse/HADOOP-2268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy updated HADOOP-2268:
----------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this. Thanks, Adrian!

> JobControl classes should use interfaces rather than implemenations
> -------------------------------------------------------------------
>
>                 Key: HADOOP-2268
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2268
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: mapred
>    Affects Versions: 0.15.0
>            Reporter: Adrian Woodhead
>            Assignee: Adrian Woodhead
>            Priority: Minor
>             Fix For: 0.16.0
>
>         Attachments: HADOOP-2268-1.patch, HADOOP-2268-2.patch, HADOOP-2268-3.patch, HADOOP-2268-4.patch
>
>
> See HADOOP-2202 for background on this issue. Arun C. Murthy agrees that when possible it is preferable to program against the interface rather than a concrete implementation (more flexible, allows for changes of the implementation in future etc.) JobControl currently exposes running, waiting, ready, successful and dependent jobs as ArrayList rather than List. I propose to change this to List.
> I will code up a patch for this.

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