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https://issues.apache.org/jira/browse/HADOOP-2381?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12551091
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Doug Cutting commented on HADOOP-2381:
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> Two options I could think of were null return or IOException.
We should throw an exception if an error occurs while fetching permission data.
> I don't see the extra burden on base class either (apart from check for null).
Adding methods to a base class is itself a burden, since they'll need to be
maintained back-compatibly. The base class should permit implementations that
compute these lazily, but does not need explicit hooks for lazy
implementations. Computing something lazily should require overloading the
getter.
> Support permission information in FileStatus
> --------------------------------------------
>
> Key: HADOOP-2381
> URL: https://issues.apache.org/jira/browse/HADOOP-2381
> Project: Hadoop
> Issue Type: New Feature
> Components: fs
> Affects Versions: 0.15.0
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Raghu Angadi
> Fix For: 0.16.0
>
> Attachments: 2381_20071207.patch, HADOOP-2381.patch,
> HADOOP-2381.patch, HADOOP-2381.patch
>
>
> In HADOOP-2288, FileSystem API is changed to support access control.
> FileStatus should also be changed to support permission information.
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