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From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-395) CoordConstrainedBooleanQuery + QueryParser support
Date Thu, 10 Nov 2005 19:04:03 GMT
    [ http://issues.apache.org/jira/browse/LUCENE-395?page=comments#action_12357277 ] 

Yonik Seeley commented on LUCENE-395:
-------------------------------------

I like this patch, and I'd like to see it committed before 1.9 is released.
Only two outstanding issues:
  1) Deciding on a syntax and adding QueryParser support... I think that's a separate issue
and can be addressed later.
  2) Performance optimizations when coord isn't needed... that also looks like a separate
issue that can be dealt with later.

So it looks to me like this is ready to be committed.  Does anyone see a reason why it shouldn't
be?



> 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, 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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