[ http://issues.apache.org/jira/browse/LUCENE-395?page=all ]
Hoss Man updated LUCENE-395:
----------------------------
Attachment: LUCENE-395.patch
TestBooleanMinShouldMatch.java
I don't really understand BooleanScorer2 very much, but i thought I understaood
it enough to take a stab at the changes paul suggested to incorperate this type
offunctionality into BooleanQuery using DisjunctionSumScorer.
Not suprisingly, some of the new tests I wrote for this functionality don't
pass. I can't figure out what the problem is. perhaps It will come to me
later, but in the mean time I wanted to post what I had in case the problem is
something really silly and trivial that I'm overlooking.
> 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: CoordConstrainedBooleanQuery.java,
> CoordConstrainedBooleanQuery.java, CustomQueryParserExample.java,
> CustomQueryParserExample.java, LUCENE-395.patch,
> 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 Gospodnetić" "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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