Package org.eclipse.persistence.jpa.internal.jpql

Interface Summary

Interface	Description
JPQLQueryProblemMessages	The list of messages used by JPQLQueryProblems when validating a JPQL query.
ResolverVisitor	The interface is used to traverse some of the subclasses of Resolver.

Class Summary

Class	Description
AbstractJPQLQueryHelper	This helper can perform the following operations over a JPQL query: Calculates the result type of a query: AbstractJPQLQueryHelper.getResultType(); Calculates the type of an input parameter: AbstractJPQLQueryHelper.getParameterType(String). Calculates the possible choices to complete the query from a given position (used for content assist): #buildContentAssistItems(int). Validates the query by introspecting it grammatically and semantically: AbstractJPQLQueryHelper.validate(), AbstractJPQLQueryHelper.validateGrammar(), AbstractJPQLQueryHelper.validateSemantic().
AbstractValidator	The abstract definition of a validator, which provides helper methods and visitors.
AbstractVisitor	An abstract class that provides helper methods for quick access to the JPQLQueryContext's methods.
CollectionValuedFieldResolver	This Resolver is responsible to resolve the type of a collection-valued field.
ContentAssistVisitor	This visitor traverses the JPQL parsed tree and gathers the possible proposals at a given position.
DeclarationResolver	This Resolver is responsible to visit the current query (which is either the top-level query or a subquery) and gathers the information from the declaration clause.
DeclarationResolver.Declaration	A Declaration represents either an identification variable declaration or a collection member declaration.
DefaultContentAssistProposals	The default implementation of ContentAssistProposals which stores the valid proposals.
EntityResolver	This Resolver retrieves the type for an abstract schema name (entity name).
GrammarValidator	This visitor is responsible to gather the problems and warnings found in the query by validating it with the JPQL grammar.
IdentificationVariableResolver	This Resolver is responsible to resolve the type of an identification variable.
JPQLQueryContext	This context is used to store information related to the JPQL query.
JPQLQueryProblemResourceBundle	The resource bundle containing the problems encountered in a JPQL query.
KeyResolver	This Resolver is responsible to return the map key, which means that for identification variables referring to an instance of an association or collection represented as a Map, the identification variable is of the abstract schema type of the map key.
LiteralVisitor	This visitor traverses an Expression and retrieves the "literal" value.
NullResolver	A "null" implementation of a Resolver.
Resolver	A Resolver is responsible to resolve a property by retrieving either the managed type, the mapping, the type and the type declaration depending on the type of resolver.
SemanticValidator	This visitor gathers the problems and warnings found in a query by validating its semantic.
SingleValuedObjectFieldResolver	This Resolver is responsible to resolve the type of a single valued object field, which is usually part of a path expression.
StateFieldResolver	This Resolver is responsible to resolve the type of a state field, which is the leaf of the state field path expression.
TreatResolver	This Resolver resolves a path and casts it as another entity type.
ValueResolver	This Resolver is responsible to return the map value, which means that for identification variables referring to an instance of an association or collection represented as a Map, the identification variable is of the abstract schema type of the map value.
VirtualQuery	This implementation of an IQuery simply holds onto the string representation of the JPQL query.
WordParser	This "parser" holds onto the string version of the Java Persistence query that is parsed into a parsed tree.

Enum Summary

Enum	Description
LiteralType	Some Expression can have a "literal", this enumeration is used to visit an Expression and to retrieve the right value.