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+Contains the implementation of the Lucene query parser using the flexible query parser frameworks
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+Lucene Flexible Query Parser Implementation
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+The old Lucene query parser used to have only one class that performed
+all the parsing operations. In the new query parser structure, the
+parsing was divided in 3 steps: parsing (syntax), processing (semantic)
+and building.
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+The classes contained in the package org.apache.lucene.queryParser.standard
+are used to reproduce the same behavior as the old query parser.
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+Check org.apache.lucene.queryParser.standard.StandardQueryParser to quick start using the Lucene query parser.
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+There are 2 wrapper classes that extends QueryParser and MultiFieldQueryParser.
+The classes implement internally the new query parser structure. These 2
+classes are deprecated and should only be used when there is a need to use the
+old query parser interface.
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