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Posted to hdfs-dev@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2012/11/14 04:26:13 UTC

[jira] [Created] (HDFS-4188) Add a snapshot id comparator

Tsz Wo (Nicholas), SZE created HDFS-4188:
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             Summary: Add a snapshot id comparator
                 Key: HDFS-4188
                 URL: https://issues.apache.org/jira/browse/HDFS-4188
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: name-node
            Reporter: Tsz Wo (Nicholas), SZE
            Assignee: Tsz Wo (Nicholas), SZE
            Priority: Minor


The Snapshot class currently has two compareTo methods. The one for comparing IDs is not implementing the Comparable interface since Java does not allow implementing the same interface twice with different generic types.  It is better to remove one of the compareTo methods for avoiding confusion.

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[jira] [Resolved] (HDFS-4188) Add a snapshot id comparator

Posted by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/HDFS-4188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE resolved HDFS-4188.
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       Resolution: Fixed
    Fix Version/s: Snapshot (HDFS-2802)
     Hadoop Flags: Reviewed

Thanks Suresh for reviewing it.

I have committed this.
                
> Add a snapshot id comparator
> ----------------------------
>
>                 Key: HDFS-4188
>                 URL: https://issues.apache.org/jira/browse/HDFS-4188
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Minor
>             Fix For: Snapshot (HDFS-2802)
>
>         Attachments: h4188_20121113.patch, h4188_20121114.patch
>
>
> The Snapshot class currently has two compareTo methods. The one for comparing IDs is not implementing the Comparable interface since Java does not allow implementing the same interface twice with different generic types.  It is better to remove one of the compareTo methods for avoiding confusion.

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