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From "paul.elschot (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-395) CoordConstrainedBooleanQuery + QueryParser support
Date Sun, 06 Nov 2005 14:58:20 GMT
     [ http://issues.apache.org/jira/browse/LUCENE-395?page=all ]

paul.elschot updated LUCENE-395:
--------------------------------

    Attachment: TestBoolean2Patch5.txt

Patch to TestBoolean2.java to use try/finally to reset the static useScorer14 flag in BooleanQuery
even when a test fails.
This has bitten me once when one of the tests started failing...


> CoordConstrainedBooleanQuery + QueryParser support
> --------------------------------------------------
>
>          Key: LUCENE-395
>          URL: http://issues.apache.org/jira/browse/LUCENE-395
>      Project: Lucene - Java
>         Type: Improvement
>   Components: Search
>     Versions: unspecified
>  Environment: Operating System: other
> Platform: Other
>     Reporter: Mark Harwood
>     Assignee: Lucene Developers
>     Priority: Minor
>  Attachments: BooleanQuery.patch, BooleanScorer2.java, CoordConstrainedBooleanQuery.java,
CoordConstrainedBooleanQuery.java, CustomQueryParserExample.java, CustomQueryParserExample.java,
LUCENE-395.patch, LUCENE-395.patch, LUCENE-395.patch, TestBoolean2Patch5.txt, TestBooleanMinShouldMatch.java,
TestBooleanMinShouldMatch.java, TestBooleanMinShouldMatch.java, TestBooleanMinShouldMatch.java,
TestBooleanMinShouldMatch.java, TestBooleanMinShouldMatch.java
>
> Attached 2 new classes:
> 1) CoordConstrainedBooleanQuery
> A boolean query that only matches if a specified number of the contained clauses
> match. An example use might be a query that returns a list of books where ANY 2
> people from a list of people were co-authors, eg:
> "Lucene In Action" would match ("Erik Hatcher" "Otis Gospodneti&#263;" "Mark Harwood"
> "Doug Cutting") with a minRequiredOverlap of 2 because Otis and Erik wrote that.
> The book "Java Development with Ant" would not match because only 1 element in
> the list (Erik) was selected.
> 2) CustomQueryParserExample
> A customised QueryParser that allows definition of
> CoordConstrainedBooleanQueries. The solution (mis)uses fieldnames to pass
> parameters to the custom query.

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