Skip navigation links

org.eclipse.persistence.jpa.internal.jpql
Class CollectionValuedFieldResolver

java.lang.Object
org.eclipse.persistence.jpa.internal.jpql.Resolver
org.eclipse.persistence.jpa.internal.jpql.AbstractPathResolver
org.eclipse.persistence.jpa.internal.jpql.CollectionValuedFieldResolver

public final class CollectionValuedFieldResolver

extends AbstractPathResolver

This Resolver is responsible to resolve the type of a collection-valued field.

Since:

2.3

Version:

2.3

Author:

Pascal Filion

Nested Class Summary

private static class

CollectionValuedFieldResolver.MapManagedType

Field Summary

private java.lang.String	collectionValuedField The full collection-valued field path expression, which is used to determine if it's an enum type.
private java.lang.Boolean	enumType Flag used to indicate the state field path expression is actually an enum type.
private IManagedType	managedType The IManagedType representing this single valued object field path.
private boolean	managedTypeResolved This flag is used to prevent resolving the IManagedType more than once and no managed type could be found the first time.

Fields inherited from class org.eclipse.persistence.jpa.internal.jpql.AbstractPathResolver

path

Constructor Summary

CollectionValuedFieldResolver(Resolver parent, java.lang.String path, java.lang.String collectionValuedField)
Creates a new CollectionValuedFieldResolver.

Method Summary

void	accept(ResolverVisitor visitor) Visits this Resolver by the given visitor.
(package private) IType	buildType() Resolves the IType of the property handled by this Resolver.
(package private) ITypeDeclaration	buildTypeDeclaration() Resolves the ITypeDeclaration of the property handled by this Resolver.
java.lang.String	getCollectionValuedField() Returns
private IType	getEnumType()
IManagedType	getManagedType() Returns the IManagedType associated with the field handled by this Resolver.
boolean	isEnumType() Determines whether the state field path expression is actually an enum type.
private IManagedType	resolveManagedType()
java.lang.String	toString()

Methods inherited from class org.eclipse.persistence.jpa.internal.jpql.AbstractPathResolver

getMapping, getPath

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

addChild, checkParent, getChild, 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, wait, wait, wait

Field Detail

collectionValuedField

private java.lang.String collectionValuedField

The full collection-valued field path expression, which is used to determine if it's an enum type.

enumType

private java.lang.Boolean enumType

Flag used to indicate the state field path expression is actually an enum type.

managedType

private IManagedType managedType

The IManagedType representing this single valued object field path.

managedTypeResolved

private boolean managedTypeResolved

This flag is used to prevent resolving the IManagedType more than once and no managed type could be found the first time.

Constructor Detail

CollectionValuedFieldResolver

CollectionValuedFieldResolver(Resolver parent,
                              java.lang.String path,
                              java.lang.String collectionValuedField)

Creates a new CollectionValuedFieldResolver.

Parameters:

parent - The parent Resolver, which is never null

path - The collection field path, which is the last path of the collection-valued path expression

collectionValuedField - The full collection-valued field path expression, which is used to determine if it's an enum type

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

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

ITypeDeclaration buildTypeDeclaration()

Resolves the ITypeDeclaration of the property handled by this Resolver.

Overrides:

buildTypeDeclaration in class AbstractPathResolver

Returns:

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

getCollectionValuedField

public java.lang.String getCollectionValuedField()

Returns

Returns:

getEnumType

private IType getEnumType()

getManagedType

public IManagedType getManagedType()

Returns the IManagedType associated with the field handled by this Resolver. If this Resolver does not handle a field that has a IManagedType, then null should be returned.

For example: "SELECT e FROM Employee e", the Resolver for e would be returning the IManagedType for Employee.

Overrides:

getManagedType in class Resolver

Returns:

Either the IManagedType, if it could be resolved; null otherwise

isEnumType

public boolean isEnumType()

Determines whether the state field path expression is actually an enum type.

Returns:

true if the path represents the fully qualified enum type with the enum constant; false to indicate it's a real state field path expression

resolveManagedType

private IManagedType resolveManagedType()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Skip navigation links