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From "Doron Cohen (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-446) search.function - (1) score based on field value, (2) simple score customizability
Date Sat, 05 May 2007 07:05:20 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Doron Cohen updated LUCENE-446:
-------------------------------

    Attachment: function.patch.txt

Updated patch to current trunk. 

Also:
- moved TYPE consts in FieldScoreQuery to FieldScoreQuery.Type (e.g. FieldScoreQuery.Type.BYTE).
- some documentation fixes.

Updated patch javadocs in  http://people.apache.org/~doronc/api/ 

> search.function - (1) score based on field value, (2) simple score customizability
> ----------------------------------------------------------------------------------
>
>                 Key: LUCENE-446
>                 URL: https://issues.apache.org/jira/browse/LUCENE-446
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Search
>            Reporter: Yonik Seeley
>         Assigned To: Doron Cohen
>            Priority: Minor
>             Fix For: 2.2
>
>         Attachments: function.patch.txt, function.patch.txt, function.zip, function.zip
>
>
> FunctionQuery can return a score based on a field's value or on it's ordinal value.
> FunctionFactory subclasses define the details of the function.  There is currently a
LinearFloatFunction (a line specified by slope and intercept).
> Field values are typically obtained from FieldValueSourceFactory.  Implementations include
FloatFieldSource, IntFieldSource, and OrdFieldSource.

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