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Date: Thu, 9 May 2013 23:06:08 +0000 (UTC)
From: "Uwe Schindler (JIRA)" <jira@apache.org>
To: dev@lucene.apache.org
Message-ID: <JIRA.12464495.1273800616721.296467.1368140768543@arcas>
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References: <JIRA.12464495.1273800616721@arcas>
Subject: [jira] [Updated] (LUCENE-2460) Search Results Filtering Based on
 Bitwise Operations on Integer Fields
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     [ https://issues.apache.org/jira/browse/LUCENE-2460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uwe Schindler updated LUCENE-2460:
----------------------------------

    Fix Version/s:     (was: 4.3)
                   4.4
    
> Search Results Filtering Based on Bitwise Operations on Integer Fields
> ----------------------------------------------------------------------
>
>                 Key: LUCENE-2460
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2460
>             Project: Lucene - Core
>          Issue Type: New Feature
>          Components: core/search
>            Reporter: Israel Ekpo
>             Fix For: 4.4
>
>         Attachments: LUCENE-2460-bitwise.tar.gz
>
>   Original Estimate: 2h
>  Remaining Estimate: 2h
>
> This package makes it possible to filter results returned from a query based on the results of a bitwise operation on an integer field in the documents returned from the pre-constructed query.
> You can perform three basic types of operations on these integer fields
>     * BitwiseOperation.BITWISE_AND (bitwise AND)
>     * BitwiseOperation.BITWISE_OR (bitwise inclusive OR)
>     * BitwiseOperation.BITWISE_XOR (bitwise exclusive OR)
> You can also negate the results of these operations.
> For example, imagine there is an integer field in the index named "flags" with the a value 8 (1000 in binary). The following results will be expected :
>    1. A source value of 8 will match during a BitwiseOperation.BITWISE_AND operation, with negate set to false.
>    2. A source value of 4 will match during a BitwiseOperation.BITWISE_AND operation, with negate set to true.
> The BitwiseFilter constructor accepts the following values
>     * The name of the integer field (A string)
>     * The BitwiseOperation object. Example BitwiseOperation.BITWISE_XOR
>     * The source value (an integer)
>     * A boolean value indicating whether or not to negate the results of the operation
>     * A pre-constructed org.apache.lucene.search.Query

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