# All Packages

- Package Summary
  Package | Description
  --- | ---
  org.apache.lucene.queryparser.charstream | This package contains reusable parts for javacc-generated grammars (query parsers).
  org.apache.lucene.queryparser.classic | A simple query parser implemented with JavaCC.
  org.apache.lucene.queryparser.complexPhrase | QueryParser which permits complex phrase query syntax eg "(john jon jonathan~) peters*"
  org.apache.lucene.queryparser.ext | Extendable QueryParser provides a simple and flexible extension mechanism by overloading query field names.
  org.apache.lucene.queryparser.flexible.core | Core classes of the flexible query parser framework.
  org.apache.lucene.queryparser.flexible.core.builders | Necessary classes to implement query builders.
  org.apache.lucene.queryparser.flexible.core.config | Base classes used to configure the query processing.
  org.apache.lucene.queryparser.flexible.core.messages | Messages usually used by query parser implementations.
  org.apache.lucene.queryparser.flexible.core.nodes | Query nodes commonly used by query parser implementations.
  org.apache.lucene.queryparser.flexible.core.parser | Necessary interfaces to implement text parsers.
  org.apache.lucene.queryparser.flexible.core.processors | Interfaces and implementations used by query node processors
  org.apache.lucene.queryparser.flexible.core.util | Utility classes to used with the Query Parser.
  org.apache.lucene.queryparser.flexible.messages | For Native Language Support (NLS), system of software internationalization.
  org.apache.lucene.queryparser.flexible.precedence | Precedence Query Parser Implementation
  org.apache.lucene.queryparser.flexible.precedence.processors | Lucene Precedence Query Parser Processors
  org.apache.lucene.queryparser.flexible.standard | Lucene Flexible Query Parser Implementation
  org.apache.lucene.queryparser.flexible.standard.builders | Standard Lucene Query Node Builders.
  org.apache.lucene.queryparser.flexible.standard.config | Standard Lucene Query Configuration.
  org.apache.lucene.queryparser.flexible.standard.nodes | Standard Lucene Query Nodes.
  org.apache.lucene.queryparser.flexible.standard.nodes.intervalfn | This package contains classes that implement interval function support for the standard syntax parser.
  org.apache.lucene.queryparser.flexible.standard.parser | Lucene Query Parser
  org.apache.lucene.queryparser.flexible.standard.processors | Lucene Query Node Processors.
  org.apache.lucene.queryparser.simple | A simple query parser for human-entered queries.
  org.apache.lucene.queryparser.surround.parser | This package contains the QueryParser.jj source file for the Surround parser.
  org.apache.lucene.queryparser.surround.query | This package contains SrndQuery and its subclasses.
  org.apache.lucene.queryparser.xml | Parser that produces Lucene Query objects from XML streams.
  org.apache.lucene.queryparser.xml.builders | XML Parser factories for different Lucene Query/Filters.