# Package org.apache.lucene.queryparser.ext

package org.apache.lucene.queryparser.ext
Extendable QueryParser provides a simple and flexible extension mechanism by overloading query field names.

Class
Description
ExtendableQueryParser
The `ExtendableQueryParser` enables arbitrary query parser extension based on a customizable field naming scheme.
ExtensionQuery
`ExtensionQuery` holds all query components extracted from the original query string like the query field and the extension query string.
Extensions
The `Extensions` class represents an extension mapping to associate `ParserExtension` instances with extension keys.
Extensions.Pair<Cur,Cud>
This class represents a generic pair.
ParserExtension
This class represents an extension base class to the Lucene standard `QueryParser`.