EclipseLink Hermes Parser 4.0.2 · org.eclipse.persistence.jpa.jpql.parser.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.

Method Summary

Modifier and Type	Method and Description
public ExpressionRegistry	Returns: The registry containing the information related to the JPQL grammar getExpressionRegistry() Returns the registry containing the `JPQLQueryBNFs` and the `ExpressionFactories` that are used to properly parse a JPQL query.
public JPAVersion	Returns: The `JPA version` supported by this grammar getJPAVersion() Returns the `JPAVersion` of the Java Persistence supported by this grammar.
public String	Returns: The name of the persistence provider, `null` should never be returned getProvider() Returns the persistence provider name.
public String	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 getProviderVersion() Returns the version of the persistence provider.

Method Detail

getExpressionRegistry back to summary

getExpressionRegistry	back to summary
public ExpressionRegistry getExpressionRegistry() Returns the registry containing the `JPQLQueryBNFs` and the `ExpressionFactories` that are used to properly parse a JPQL query. Returns:ExpressionRegistry The registry containing the information related to the JPQL grammar

public ExpressionRegistry getExpressionRegistry()

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

Returns:ExpressionRegistry: The registry containing the information related to the JPQL grammar

getJPAVersion back to summary

getJPAVersion	back to summary
public JPAVersion getJPAVersion() Returns the `JPAVersion` of the Java Persistence supported by this grammar. Returns:JPAVersion The `JPA version` supported by this grammar

public JPAVersion getJPAVersion()

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

Returns:JPAVersion: The JPA version supported by this grammar

getProvider back to summary

getProvider	back to summary
public String getProvider() Returns the persistence provider name. Returns:String The name of the persistence provider, `null` should never be returned Since 2.5

public String getProvider()

Returns the persistence provider name.

Returns:String: The name of the persistence provider, null should never be returned
Since: 2.5

getProviderVersion	back to summary
public String getProviderVersion() Returns the version of the persistence provider. Returns:String 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 Since 2.4

getProviderVersion

back to summary

public String getProviderVersion()

Returns the version of the persistence provider.

Returns:String: 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
Since: 2.4

public Interface JPQLGrammar

Method Summary

Method Detail