org.hibernate.hql

Class QueryParser

java.lang.Object

org.hibernate.hql.QueryParser

public class QueryParser
extends Object

A parser for HQL/JPQL queries. Parsing comprises these steps:

• lexing the query
• parsing the query, building up an AST while doing so
• transforming the resulting parse tree using an AstProcessingChain

Author:

Gunnar Morling

Constructor Summary

Constructors

Constructor and Description
QueryParser()

Method Summary

Modifier and Type	Method and Description
<T> T	parseQuery(String queryString, AstProcessingChain<T> processingChain) Parses the given query string.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryParser

public QueryParser()

Method Detail

parseQuery

public <T> T parseQuery(String queryString,
                        AstProcessingChain<T> processingChain)
                 throws ParsingException

Parses the given query string.

Parameters:

queryString - the query string to parse

processingChain - one or more AstProcessors which traverse the query parse tree in order to normalize/validate it and create the parsing result

Returns:

the result of this parsing as created by the given processing chain

Throws:

ParsingException - in case any exception occurs during parsing