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https://issues.apache.org/jira/browse/LUCENE-2460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-2460:
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Fix Version/s: (was: 3.1)
> Search Results Filtering Based on Bitwise Operations on Integer Fields
> ----------------------------------------------------------------------
>
> Key: LUCENE-2460
> URL: https://issues.apache.org/jira/browse/LUCENE-2460
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Search
> Reporter: Israel Ekpo
> Fix For: 4.0
>
> 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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