org.eclipse.persistence.jpa.jpql.parser

Class DefaultEclipseLinkJPQLGrammar

java.lang.Object

org.eclipse.persistence.jpa.jpql.parser.DefaultEclipseLinkJPQLGrammar

All Implemented Interfaces:

JPQLGrammar

public final class DefaultEclipseLinkJPQLGrammar
extends java.lang.Object
implements JPQLGrammar

This JPQL grammar provides support for parsing JPQL queries defined by the JPA 2.1 functional specification and the EclipseLink 2.4.

Since:

2.4

Version:

2.4

Author:

Pascal Filion

See Also:

JPQLGrammar2_1, EclipseLinkJPQLGrammar2_4

Method Summary

Modifier and Type	Method and Description
ExpressionRegistry	getExpressionRegistry() Returns the registry containing the JPQLQueryBNFs and the ExpressionFactories that are used to properly parse a JPQL query.
JPAVersion	getJPAVersion() Returns the JPAVersion of the Java Persistence supported by this grammar.
java.lang.String	getProviderVersion() Returns the version of the persistence provider.
static JPQLGrammar	instance() Returns the singleton instance of this class.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

instance

public static JPQLGrammar instance()

Returns the singleton instance of this class.

Returns:

The latest JPQLGrammar that supports EclipseLink

getExpressionRegistry

public ExpressionRegistry getExpressionRegistry()

Returns the registry containing the JPQLQueryBNFs and the ExpressionFactories that are used to properly parse a JPQL query.

Specified by:

getExpressionRegistry in interface JPQLGrammar

Returns:

The registry containing the information related to the JPQL grammar

getJPAVersion

public JPAVersion getJPAVersion()

Returns the JPAVersion of the Java Persistence supported by this grammar.

Specified by:

getJPAVersion in interface JPQLGrammar

Returns:

The JPA version supported by this grammar

getProviderVersion

public java.lang.String getProviderVersion()

Returns the version of the persistence provider.

Specified by:

getProviderVersion in interface JPQLGrammar

Returns:

The version of the persistence provider, if one is extending the default JPQL grammar defined in the Java Persistence specification, otherwise returns an empty string

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object