# Uses of Interface
org.apache.lucene.queryparser.classic.QueryParserConstants

Packages that use QueryParserConstants
Package
Description
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.

## Uses of QueryParserConstants in org.apache.lucene.queryparser.classic

Classes in org.apache.lucene.queryparser.classic that implement QueryParserConstants
Modifier and Type
Class
Description
`class`
`MultiFieldQueryParser`
A QueryParser which constructs queries to search multiple fields.
`class`
`QueryParser`
This class is generated by JavaCC.
`class`
`QueryParserTokenManager`
Token Manager.

## Uses of QueryParserConstants in org.apache.lucene.queryparser.complexPhrase

Classes in org.apache.lucene.queryparser.complexPhrase that implement QueryParserConstants
Modifier and Type
Class
Description
`class`
`ComplexPhraseQueryParser`
QueryParser which permits complex phrase query syntax eg "(john jon jonathan~) peters*".

## Uses of QueryParserConstants in org.apache.lucene.queryparser.ext

Classes in org.apache.lucene.queryparser.ext that implement QueryParserConstants
Modifier and Type
Class
Description
`class`
`ExtendableQueryParser`
The `ExtendableQueryParser` enables arbitrary query parser extension based on a customizable field naming scheme.