lucene

History

Mark Harwood 998908257b Added new "CachedFilter" feature to XML syntax enabling any queries or filters to be cached for better repeat performance. Added JUnit test and example XML file. Also fixed ClassCastException in DOMUtils which occured when getAttributeWithInheritance reached the root of a document without finding the required attribute. git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@492823 13f79535-47bb-0310-9956-ffa450edef68		2007-01-05 00:05:17 +00:00
..
src	Added new "CachedFilter" feature to XML syntax enabling any queries or filters to be cached for better repeat performance. Added JUnit test and example XML file. Also fixed ClassCastException in DOMUtils which occured when getAttributeWithInheritance reached the root of a document without finding the required attribute.	2007-01-05 00:05:17 +00:00
build.xml	Added XML-query-parser module for new extensible query parser that handles queries expressed as XML. Is dependent on new "queries" contrib module.	2006-02-25 00:39:18 +00:00
readme.htm	Added XML-query-parser module for new extensible query parser that handles queries expressed as XML. Is dependent on new "queries" contrib module.	2006-02-25 00:39:18 +00:00

readme.htm

<html>
	<body>
		<h1>XML based query syntax
		</h1>
		<p>
			This module contains:
			<ul>
				<li>a modular Lucene Query Parser where queries are expressed as XML</li>
				<li>JUnit test</li>
				<li>Example XML queries</li>
				<li>Test index (subset of Reuters 21578)</li>
			</ul>
		</p>
		<p>
			The original motivation for creating this package was outlined and discussed <a href="http://marc.theaimsgroup.com/?l=lucene-dev&m=113355526731460&w=2">here</a>.
		</p>
		<p>
			Parser support includes:
			<ul>
				<li>"Span" queries</li>
				<li>"Like this" queries</li>
				<li>Boolean, Term, and UserInput (parsed with existing query parser)</li>
				<li>BoostingQuery - a class that can downgrade scores for hits on
				certain terms rather than the hard-line approach taken by BooleanClause.Occurs.MUST_NOT</li>
				<li>FilteredQuery, RangeFilter, and "TermsFilter" for non-sequential terms</li>
				<li>"FuzzyLikeThis" a new query which is a cross between "LikeThis" and "fuzzy" but with
					better scoring of fuzzy terms than standard fuzzy queries</li>
				<li>A modular design with expandable support for new query/filter types</li>
			</ul>
		</p>
		<p>This code is dependent on the "queries" contrib module although the "CoreParser" can be compiled with just Lucene core if required</p>
	</body>
</html>