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From "Shrijeet Paliwal (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6481) SkipFilter javadoc is incorrect
Date Thu, 02 Aug 2012 19:18:03 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6481?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Shrijeet Paliwal updated HBASE-6481:

    Attachment: 0001-HBASE-6481-SkipFilter-javadoc-is-incorrect.patch
> SkipFilter javadoc is incorrect
> -------------------------------
>                 Key: HBASE-6481
>                 URL: https://issues.apache.org/jira/browse/HBASE-6481
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.94.0
>            Reporter: Shrijeet Paliwal
>            Priority: Minor
>              Labels: newbie
>         Attachments: 0001-HBASE-6481-SkipFilter-javadoc-is-incorrect.patch
> The javadoc for SkipFilter (http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/filter/SkipFilter.html)
states : 
> A wrapper filter that filters an entire row if any of the KeyValue checks do not pass.
> But the example same javadocs gives to support this statement is wrong. The *scan.setFilter(new
SkipFilter(new ValueFilter(CompareOp.EQUAL,
>      new BinaryComparator(Bytes.toBytes(0))));* , will only emit rows which have all
column values zero. In other words it is going to skip all rows for which 
> ValueFilter(CompareOp.EQUAL, new BinaryComparator(Bytes.toBytes(0))) does not pass ,
which happen to be all non zero valued cells. 
> In the same example a ValueFilter created with CompareOp.NOT_EQUAL will filter out the
rows which have a column value zero. 

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