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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-2211) Add a new Filter that checks a single column value but does not emit it.
Date Thu, 11 Feb 2010 18:50:28 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12832624#action_12832624

stack commented on HBASE-2211:

Patch looks great.

Please remove '+ * @author ferdy'.  Its apache policy to not have author annotations.

Also, you need to add mention of your filter to HbaseObjectWriter (If you are interested in
the arcane why, just say and I'll dump it out in here for you).

> Add a new Filter that checks a single column value but does not emit it.
> ------------------------------------------------------------------------
>                 Key: HBASE-2211
>                 URL: https://issues.apache.org/jira/browse/HBASE-2211
>             Project: Hadoop HBase
>          Issue Type: New Feature
>    Affects Versions: 0.20.3
>            Reporter: Ferdy
>         Attachments: HBASE-2211-v2.patch
> Performance wise, it may be necessary for a filter to test a column for a specific value
(like SingleColumnValueFilter) , but exclude the KeyValue from the output. This is certainly
the case when the column values are large in size.
> In order to keep SingleColumnValueFilter simple and maintainable, I decided to subclass
it. SingleColumnValueExcludeFilter is the result. Tests are included.

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