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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-880) Improve the current client API by creating new container classes
Date Thu, 02 Oct 2008 18:17:46 GMT

    [ https://issues.apache.org/jira/browse/HBASE-880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636417#action_12636417
] 

stack commented on HBASE-880:
-----------------------------

Should RowOperation or Operation be an Interface since as an abstract class it provides near
zero functionality?  If so, Interface would have a getRow and getRockLock and that'd be it?
 If the Do─čacan suggestion so Get and Delete take Maps, maybe Get/Delete/Put implement a
(read-only) SortedMap delegating invocations through to the passed HbaseMapWritable instance
-- so folks can interrogate to see whats in them using Map methods?

> Improve the current client API by creating new container classes
> ----------------------------------------------------------------
>
>                 Key: HBASE-880
>                 URL: https://issues.apache.org/jira/browse/HBASE-880
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: client
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.19.0
>
>         Attachments: hbase-880-patch.jpg, hbase-880-v1.patch, hbase-880-v2.patch, hbase_client_classes.png,
NewCilentAPIProposoal4.gif, proposal2.jpg, proposed.jpg
>
>
> The current API does not scale very well. For each new feature, we have to add many methods
to take care of all the overloads. Also, the need to batch row operations (gets, inserts,
deletes) implies that we have to manage some "entities" like we are able to do with BatchUpdate
but not with the other operations. The RowLock should be an attribute of such an entity.
> The scope of this jira is only to replace current API with another feature-compatible
one, other methods will be added in other issues.

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