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From "Jeff Hammerbacher (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2648) API Rework: Have Delete and Put implement same Interface or subclass same 'Mutation' ancestor (Get too? And Result?)
Date Wed, 02 Jun 2010 19:34:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2648?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12874757#action_12874757
] 

Jeff Hammerbacher commented on HBASE-2648:
------------------------------------------

bq. HBASE-2609 is related in that it asks that the Delete and Put API work the same.

I'm not sure if it's a typo in your statement, but I opened 2609 to make Delete and Get work
the same. Put is a bit different...

> API Rework: Have Delete and Put implement same Interface or subclass same 'Mutation'
ancestor (Get too?  And Result?)
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-2648
>                 URL: https://issues.apache.org/jira/browse/HBASE-2648
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: stack
>
> Our API has a problem in that we can't pass a mix of Put and Delete edits.  We see it
in various places.
> HBASE-1626 tried to add being able to emit Puts and Deletes from your Map or Reduce but
as HBASE-1969 points out, it won't work as done.
> Ryan talks about need of being able to pass a set of Deletes and Puts against a single
row so we can do a bunch of edits all under the umbrella of a single row *lock*.
> Related, HBASE-1845 wants to do bulk put/gets/deletes all in same way and HBASE-2609
is related in that it asks that the Delete and Put API work the same.
> For at least the first issue, in hbase-1969, "HBASE-1626 does not work as advertised
due to lack of "instanceof" check in MR framework", Lars G suggests we have a Mutation class
that can carry Deletes and Puts on a row.  He notes that the sample client code in the BT
table seems to do this.  This Mutation carrying-class could be used to solve the Ryan issue
above.
> But maybe we need something more radical, an API overhaul (again) to do something like
was proposed long-time ago in hbase-880.  This was an ugly, unfinished proposal but many of
the classes shared an ancestor -> https://issues.apache.org/jira/secure/attachment/12395138/880proposal5-v2.png.

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