mirror of https://github.com/apache/lucene.git
33 lines
1.3 KiB
HTML
33 lines
1.3 KiB
HTML
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<body>
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<h1>XML based query syntax
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</h1>
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<p>
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This module contains:
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<ul>
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<li>a modular Lucene Query Parser where queries are expressed as XML</li>
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<li>JUnit test</li>
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<li>Example XML queries</li>
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<li>Test index (subset of Reuters 21578)</li>
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</ul>
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</p>
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<p>
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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>.
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</p>
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<p>
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Parser support includes:
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<ul>
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<li>"Span" queries</li>
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<li>"Like this" queries</li>
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<li>Boolean, Term, and UserInput (parsed with existing query parser)</li>
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<li>BoostingQuery - a class that can downgrade scores for hits on
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certain terms rather than the hard-line approach taken by BooleanClause.Occurs.MUST_NOT</li>
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<li>FilteredQuery, RangeFilter, and "TermsFilter" for non-sequential terms</li>
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<li>"FuzzyLikeThis" a new query which is a cross between "LikeThis" and "fuzzy" but with
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better scoring of fuzzy terms than standard fuzzy queries</li>
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<li>A modular design with expandable support for new query/filter types</li>
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</ul>
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</p>
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<p>This code is dependent on the "queries" contrib module although the "CoreParser" can be compiled with just Lucene core if required</p>
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</body>
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</html>
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