[LUCENE-395] CoordConstrainedBooleanQuery + QueryParser support

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Component/s: core/search

Environment

Operating System: other
Platform: Other

• Bugzilla Id: 35284
• Assignee: Yonik Seeley
• Reporter: Mark Harwood
• Created: 09/Jun/05 20:01
• Updated: 28/Aug/22 11:22
• Resolved: 17/Nov/05 01:42

Description

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.

Issue Links

• is cloned by: LUCENE-466 Need QueryParser support for BooleanQuery.minNrShouldMatch