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https://issues.apache.org/jira/browse/HBASE-880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12636435#action_12636435
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Doğacan Güney commented on HBASE-880:
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bq. Another objection I was going to make but having thought about it, I've not
raised it since it verges on the 'silly' relates to the Scanner API. Getting a
scanner using a Scope that does not include column/family name would make it
impossible specifying a scanner that took multiple columns and for each its own
column Scope. Do we want to support this? If not, the new API would allow a
single Scope across all columns.
I am not sure I follow you here. Scanners can just have two constructors. One
would just get a scope (meaning that this scope is valid for all columns) and
the other would get (again) a Map of column, scope pairs. Or is there something
I am missing here?
> 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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