## Uses of Class
org.apache.lucene.queryparser.flexible.core.QueryParserHelper

Packages that use QueryParserHelper
Package | Description
--- | ---
org.apache.lucene.queryparser.flexible.precedence | Precedence Query Parser Implementation
org.apache.lucene.queryparser.flexible.standard | Implementation of the Lucene classic query parser using the flexible query parser frameworks

### Uses of QueryParserHelper in org.apache.lucene.queryparser.flexible.precedence

Subclasses of QueryParserHelper in org.apache.lucene.queryparser.flexible.precedence
Modifier and Type | Class and Description
--- | ---
`class` | `PrecedenceQueryParser` This query parser works exactly as the standard query parser ( `StandardQueryParser` ), except that it respect the boolean precedence, so <a AND b OR c AND d> is parsed to <(+a +b) (+c +d)> instead of <+a +b +c +d>.

### Uses of QueryParserHelper in org.apache.lucene.queryparser.flexible.standard

Subclasses of QueryParserHelper in org.apache.lucene.queryparser.flexible.standard
Modifier and Type | Class and Description
--- | ---
`class` | `StandardQueryParser` This class is a helper that enables users to easily use the Lucene query parser.