[ https://issues.apache.org/jira/browse/LUCENE-3256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Male resolved LUCENE-3256.
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Resolution: Fixed
Assignee: Chris Male
Committed revision 1141366.
> Consolidate CustomScoreQuery, ValueSourceQuery and BoostedQuery
> ----------------------------------------------------------------
>
> Key: LUCENE-3256
> URL: https://issues.apache.org/jira/browse/LUCENE-3256
> Project: Lucene - Java
> Issue Type: Sub-task
> Components: core/search
> Reporter: Chris Male
> Assignee: Chris Male
> Fix For: 4.0
>
> Attachments: LUCENE-3256.patch, LUCENE-3256.patch, LUCENE-3256.patch
>
>
> Lucene's CustomScoreQuery and Solr's BoostedQuery do essentially the same thing: they
boost the scores of Documents by the value from a ValueSource. BoostedQuery does this in
a direct fashion, by accepting a ValueSource. CustomScoreQuery on the other hand, accepts
a series of ValueSourceQuerys. ValueSourceQuery seems to do exactly the same thing as FunctionQuery.
> With Lucene's ValueSource being deprecated / removed, we need to resolve these dependencies
and simplify the code.
> Therefore I recommend we do the following things:
> - Move CustomScoreQuery (and CustomScoreProvider) to the new Queries module and change
it over to use FunctionQuerys instead of ValueSourceQuerys.
> - Deprecate Solr's BoostedQuery in favour of the new CustomScoreQuery. CSQ provides
a lot of support for customizing the scoring process.
> - Move and consolidate all tests of CSQ and BoostedQuery, to the Queries module and have
them test CSQ instead.
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