org.eclipse.persistence.jpa.jpql
Class CollectionEquivalentResolver

java.lang.Object
  org.eclipse.persistence.jpa.jpql.Resolver
      org.eclipse.persistence.jpa.jpql.CollectionEquivalentResolver

public class CollectionEquivalentResolver
extends Resolver

This Resolver compares each IType retrieved from the list of Resolvers that were gathered for a given Expression and returns that type if they are all the same type otherwise the IType for Object is returned.

Version:

2.4

Author:

Pascal Filion

Since:

2.3

Constructor Summary

CollectionEquivalentResolver(Resolver parent, java.util.List<Resolver> resolvers)
Creates a new CollectionEquivalentResolver.

Method Summary

void	accept(ResolverVisitor visitor) Visits this Resolver by the given visitor.
protected IType	buildType() Resolves the IType of the property handled by this Resolver.
protected ITypeDeclaration	buildTypeDeclaration() Resolves the ITypeDeclaration of the property handled by this Resolver.

Methods inherited from class org.eclipse.persistence.jpa.jpql.Resolver

addChild, checkParent, getChild, getManagedType, getMapping, getParent, getParentManagedType, getParentMapping, getParentType, getParentTypeDeclaration, getProvider, getQuery, getType, getType, getType, getTypeDeclaration, getTypeHelper, getTypeRepository, isNullAllowed, setNullAllowed

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CollectionEquivalentResolver

public CollectionEquivalentResolver(Resolver parent,
                                    java.util.List<Resolver> resolvers)

Creates a new CollectionEquivalentResolver.

Parameters:

parent - The parent Resolver, which is never null

resolvers - The list of resolvers that were created for each of the encapsulated expressions

Method Detail

accept

public void accept(ResolverVisitor visitor)

Visits this Resolver by the given visitor.

Specified by:

accept in class Resolver

Parameters:

visitor - The visitor to visit this object

buildType

protected IType buildType()

Resolves the IType of the property handled by this Resolver.

Overrides:

buildType in class Resolver

Returns:

Either the IType that was resolved by this Resolver or the IType for IType.UNRESOLVABLE_TYPE if it could not be resolved

buildTypeDeclaration

protected ITypeDeclaration buildTypeDeclaration()

Resolves the ITypeDeclaration of the property handled by this Resolver.

Specified by:

buildTypeDeclaration in class Resolver

Returns:

Either the ITypeDeclaration that was resolved by this Resolver or the ITypeDeclaration for IType.UNRESOLVABLE_TYPE if it could not be resolved