public interface JPQLGrammar
A JPQL grammar defines how a JPQL query can be parsed. The ExpressionRegistry contains
the BNFs and the expression factories used to
create the tree representation of the JPQL query.
The supported JPQL grammars are:
JPQLGrammar1_0 defines the JPQL grammar based on JPA 1.0;JPQLGrammar2_0 defines the JPQL grammar based on JPA 2.0;JPQLGrammar2_1 defines the JPQL grammar based on JPA 2.1;EclipseLinkJPQLGrammar1 defines the JPQL grammar based on JPA 1.0 and EclipseLink 1.x;EclipseLinkJPQLGrammar2_0 defines the JPQL grammar based on JPA 2.0 and the additional EclipseLink 2.0 support;EclipseLinkJPQLGrammar2_1 defines the JPQL grammar based on JPA 2.0 and the additional EclipseLink 2.1 support.EclipseLinkJPQLGrammar2_2 defines the JPQL grammar based on JPA 2.0 and the additional EclipseLink 2.2 support.EclipseLinkJPQLGrammar2_3 defines the JPQL grammar based on JPA 2.0 and the additional EclipseLink 2.3 support.EclipseLinkJPQLGrammar2_4 defines the JPQL grammar based on JPA 2.1 and the additional EclipseLink 2.4 support.EclipseLinkJPQLGrammar2_5 defines the JPQL grammar based on JPA 2.1 and the additional EclipseLink 2.5 support.DefaultJPQLGrammar defines the JPQL grammar based on the latest JPA version;DefaultEclipseLinkJPQLGrammar defines the JPQL grammar based on the latest JPA and
the latest EclipseLink;Provisional API: This interface is part of an interim API that is still under development and expected to change significantly before reaching stability. It is available at this early stage to solicit feedback from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken (repeatedly) as the API evolves.
| 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 |
getProvider()
Returns the persistence provider name.
|
java.lang.String |
getProviderVersion()
Returns the version of the persistence provider.
|
ExpressionRegistry getExpressionRegistry()
JPQLQueryBNFs and the ExpressionFactories that are used
to properly parse a JPQL query.JPAVersion getJPAVersion()
JPAVersion of the Java Persistence supported by this grammar.JPA version supported by this grammarjava.lang.String getProvider()
null should never be returnedjava.lang.String getProviderVersion()