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From "Erik Holstad (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1622) Make KeyValue implement the Comparable interface to make it work with Cascading.
Date Wed, 08 Jul 2009 16:43:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728782#action_12728782
] 

Erik Holstad commented on HBASE-1622:
-------------------------------------

When it comes down to the use in Cascading I don't think that these things will be a problem,
but if people are using the Comparable in other places and for catalog keys, this will cause
confusion. I guess one use case would be to put KeyValues in a map and not specify a comparator.


Not a big fan of Adding more classes either, but maybe we can put them in the mapreduce package
or a Cascading package so we have them only where they should be used, to avoid miss use of
these new classes too, and strap some warnings in the top.

> Make KeyValue implement the Comparable interface to make it work with Cascading.
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-1622
>                 URL: https://issues.apache.org/jira/browse/HBASE-1622
>             Project: Hadoop HBase
>          Issue Type: New Feature
>    Affects Versions: 0.20.0
>            Reporter: Erik Holstad
>            Assignee: Erik Holstad
>            Priority: Minor
>             Fix For: 0.20.0
>
>         Attachments: HBASE-1622-v1.patch, HBASE-1622-v2.patch
>
>
> As with making Result implement the Comparable interface, this is used for making HBase
interact tightly with cascading, so that KeyValues can be put into Tuples.

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