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https://issues.apache.org/jira/browse/HBASE-803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Gray updated HBASE-803:
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Attachment: hbase-803-v1.patch
This patch applies against TRUNK but does not compile.
Within HR it relies on new batchUpdate and getFull methods that can be passed
previously acquired row locks.
Will clean up HBASE-798 next week, though latest patch should work.
> Atomic increment operations
> ---------------------------
>
> Key: HBASE-803
> URL: https://issues.apache.org/jira/browse/HBASE-803
> Project: Hadoop HBase
> Issue Type: New Feature
> Components: client, ipc, regionserver
> Affects Versions: 0.2.0
> Reporter: Jonathan Gray
> Assignee: Jonathan Gray
> Priority: Minor
> Fix For: 0.2.1
>
> Attachments: hbase-803-v1.patch
>
>
> Discussion was already started in HBASE-798
> First version will contain to additional HTable methods:
> incrementColumnValue(table,row,family:column) -> Inserts a new version of the
> specified column (which must already exist) with an incremented cell value.
> incrementFamilyColumn(table,row,family: ) -> Inserts a new column under the
> specified family. This assumes the family always contains only one column.
> That column is read, incremented, deleted, and a new column is inserted with
> the incremented column name. The existing value is re-inserted unchanged to
> the new column.
> I'm going to be making even more specialized versions of these for internal
> use (taking apart byte[]'s, doing different bit/byte operations, and assorted
> munging...). So if anyone has any requests for other specialized versions,
> or more generic versions, please post them here and I'd be more than happy to
> take a stab at them.
> Next week I will likely have a go at HBASE-493
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