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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4151) Add a memcmp-compatible interface for key types
Date Mon, 15 Sep 2008 22:31:44 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated HADOOP-4151:
----------------------------------

    Attachment: 4151-3.patch

Added hashCode to Text and BytesWritable.

{noformat}
     [exec] +1 overall.  

     [exec]     +1 @author.  The patch does not contain any @author tags.

     [exec]     +1 tests included.  The patch appears to include 15 new or modified tests.

     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.

     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.

     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
{noformat}

> Add a memcmp-compatible interface for key types
> -----------------------------------------------
>
>                 Key: HADOOP-4151
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4151
>             Project: Hadoop Core
>          Issue Type: Improvement
>            Reporter: Chris Douglas
>            Assignee: Chris Douglas
>            Priority: Minor
>             Fix For: 0.19.0
>
>         Attachments: 4151-0.patch, 4151-1.patch, 4151-2.patch, 4151-3.patch
>
>
> Sometimes it's beneficial to treat types (like BytesWritable and Text) as byte arrays,
agnostic to their type. Adding an interface to tag key types as amenable to this treatment
can permit optimizations and reuse for that subset of types in tools and libraries.

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