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From "Jim Kellerman (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-35) [hbase] Make BatchUpdate public in the API
Date Thu, 07 Feb 2008 08:19:08 GMT

    [ https://issues.apache.org/jira/browse/HBASE-35?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12566487#action_12566487

Jim Kellerman commented on HBASE-35:

I ran the test suite and it succeeded, except that TestRegionServerExit failed, for the same
reason that I talked about in email.

Consequently, I'm giving this patch a +1 and opening a new Jira for TestRegionServerExit

> [hbase] Make BatchUpdate public in the API
> ------------------------------------------
>                 Key: HBASE-35
>                 URL: https://issues.apache.org/jira/browse/HBASE-35
>             Project: Hadoop HBase
>          Issue Type: New Feature
>          Components: client
>            Reporter: Bryan Duxbury
>            Assignee: Bryan Duxbury
>             Fix For: 0.2.0
>         Attachments: 35-v2.patch, 35-v3.patch, 35.patch
> Today, when you want to interact with a row in HBase, you start an update, make changes,
and then commit the lock. This is fine for very simple applications. However, when you try
to do things like support table operations as part of a MapReduce job, it becomes more difficult
to support.
> I propose that we create a new class, RowMutation (a la the Bigtable paper), which encapsulates
a group of actions on a row, and make this available to API consumers. It might look something
> {code}
> RowMutation r = table.getMutation(row_key);
> r.setTimestamp(1111);
> r.put(new Text("colfam1:name", value));
> r.delete(new Text("colfam2:deleted"));
> table.commit(r);
> {code}
> This syntax would supercede the existing startUpdate/commit format, which could be deprecated
and mapped to a RowMutation behind the scenes. 

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