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Date: Thu, 6 Dec 2007 04:27:43 -0800 (PST)
From: "Adrian Woodhead (JIRA)" <jira@apache.org>
To: hadoop-dev@lucene.apache.org
Subject: [jira] Updated: (HADOOP-2268) JobControl classes should use
 interfaces rather than implemenations
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     [ https://issues.apache.org/jira/browse/HADOOP-2268?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adrian Woodhead updated HADOOP-2268:
------------------------------------

    Status: Patch Available  (was: Open)

Let's see what Hudson thinks of this patch...

> 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
>
>
> 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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