org.apache.openjpa.kernel.jpql
Class JPQLParser

java.lang.Object
  extended by org.apache.openjpa.kernel.jpql.JPQLParser
All Implemented Interfaces:
Serializable, ExpressionParser

public class JPQLParser
extends Object
implements ExpressionParser

Parser for JPQL queries.

Author:
Marc Prud'hommeaux
See Also:
Serialized Form

Field Summary
static String LANG_JPQL
           
 
Constructor Summary
JPQLParser()
           
 
Method Summary
 QueryExpressions eval(Object parsed, ExpressionStoreQuery query, ExpressionFactory factory, ClassMetaData candidate)
          Parse the given query string.
 Value[] eval(String[] vals, ExpressionStoreQuery query, ExpressionFactory factory, ClassMetaData candidate)
          Parse the given value clauses.
 String getLanguage()
          Return a string key describing the language that this instance parses.
 Object parse(String ql, ExpressionStoreQuery query)
          Return a parsed intermediate form of the given query string.
 void populate(Object parsed, ExpressionStoreQuery query)
          Use the parsed query form to set information such as candidate type, result type, etc that was encoded in the query string.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

LANG_JPQL

public static final String LANG_JPQL
See Also:
Constant Field Values
Constructor Detail

JPQLParser

public JPQLParser()
Method Detail

parse

public Object parse(String ql,
                    ExpressionStoreQuery query)
Description copied from interface: ExpressionParser
Return a parsed intermediate form of the given query string.

Specified by:
parse in interface ExpressionParser

populate

public void populate(Object parsed,
                     ExpressionStoreQuery query)
Description copied from interface: ExpressionParser
Use the parsed query form to set information such as candidate type, result type, etc that was encoded in the query string.

Specified by:
populate in interface ExpressionParser

eval

public QueryExpressions eval(Object parsed,
                             ExpressionStoreQuery query,
                             ExpressionFactory factory,
                             ClassMetaData candidate)
Description copied from interface: ExpressionParser
Parse the given query string.

Specified by:
eval in interface ExpressionParser

eval

public Value[] eval(String[] vals,
                    ExpressionStoreQuery query,
                    ExpressionFactory factory,
                    ClassMetaData candidate)
Description copied from interface: ExpressionParser
Parse the given value clauses.

Specified by:
eval in interface ExpressionParser

getLanguage

public String getLanguage()
Description copied from interface: ExpressionParser
Return a string key describing the language that this instance parses.

Specified by:
getLanguage in interface ExpressionParser


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