Class DefaultJPQLGrammar
java.lang.Object
org.eclipse.persistence.jpa.jpql.parser.DefaultJPQLGrammar
- All Implemented Interfaces:
JPQLGrammar
This
JPQL grammar
provides support for parsing JPQL queries defined in the
latest Jakarta Persistence functional specification.
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.
- See Also:
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Field Summary
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Method Summary
Modifier and TypeMethodDescriptionReturns the registry containing theJPQLQueryBNFs
and theExpressionFactories
that are used to properly parse a JPQL query.Returns theJPAVersion
of the Java Persistence supported by this grammar.Returns the persistence provider name.Returns the version of the persistence provider.static JPQLGrammar
instance()
Returns the singleton instance of this class.toString()
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Field Details
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PROVIDER_NAME
The generic persistence provider name: JPA.- See Also:
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Method Details
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instance
Returns the singleton instance of this class.- Returns:
- The singleton instance of this
DefaultJPQLGrammar
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getExpressionRegistry
Description copied from interface:JPQLGrammar
Returns the registry containing theJPQLQueryBNFs
and theExpressionFactories
that are used to properly parse a JPQL query.- Specified by:
getExpressionRegistry
in interfaceJPQLGrammar
- Returns:
- The registry containing the information related to the JPQL grammar
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getJPAVersion
Description copied from interface:JPQLGrammar
Returns theJPAVersion
of the Java Persistence supported by this grammar.- Specified by:
getJPAVersion
in interfaceJPQLGrammar
- Returns:
- The
JPA version
supported by this grammar
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getProvider
Description copied from interface:JPQLGrammar
Returns the persistence provider name.- Specified by:
getProvider
in interfaceJPQLGrammar
- Returns:
- The name of the persistence provider,
null
should never be returned
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getProviderVersion
Description copied from interface:JPQLGrammar
Returns the version of the persistence provider.- Specified by:
getProviderVersion
in interfaceJPQLGrammar
- 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
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toString
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