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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-6142) Javadoc in some Filters ambiguous
Date Sat, 02 Jun 2012 05:58:23 GMT

     [ https://issues.apache.org/jira/browse/HBASE-6142?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-6142:
-------------------------

      Tags: noob  (was: noo)
    Labels: noob  (was: )

Tagging as noob.  Would be grand if an angel from heaven would write little unit tests to
verify which way the filter blows and fix the javadoc accordingly (Lars George, if we read
that book of yours, would it answer the questions Joep raises?  IIRC, its good on filters?)
                
> Javadoc in some Filters ambiguous
> ---------------------------------
>
>                 Key: HBASE-6142
>                 URL: https://issues.apache.org/jira/browse/HBASE-6142
>             Project: HBase
>          Issue Type: Bug
>          Components: documentation
>    Affects Versions: 0.92.2, 0.96.0, 0.94.1
>            Reporter: Joep Rottinghuis
>            Priority: Minor
>              Labels: noob
>
> The javadoc on some of the filter is somewhat confusing.
> The main Filter interface has methods that behave like a sieve; when filterRowKey returns
true, that means that the row is filtered _out_ (not included).
> Many of the Filter implementations work the other way around. When the condition is met
the value passes (ie, the row is returned).
> Most Filters make it clear when a values passes (passing through the filter meaning the
values are returned from the scan).
> Some are less clear in light of how the Filter interface works: WhileMatchFilter and
SingleColumnValueFilter are examples.

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