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From Doğacan Güney (JIRA) <j...@apache.org>
Subject [jira] Commented: (HBASE-880) Improve the current client API by creating new container classes
Date Thu, 02 Oct 2008 09:27:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636313#action_12636313
] 

Doğacan Güney commented on HBASE-880:
-------------------------------------

Michael Stack's proposal looks excellent (+1 from me) just one minor thing: Instead of having
a List<Scope> (and Scope including columns) maybe just pass Get a Map of <column,
Scope> pairs. I guess, it is possible that you build up scopes on different methods so
one may accidentally add two scopes for one column. With a map, it may be easier to keep track
of.... 

> 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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