Skip navigation links

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

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

public final class SingleValuedObjectFieldResolver

extends AbstractPathResolver

This Resolver is responsible to resolve the type of a single valued object field, which is usually part of a path expression. It is not the first path nor the last path.

Since:

2.3

Version:

2.3

Author:

Pascal Filion

Field Summary

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

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

Method Summary

void	accept(ResolverVisitor visitor) Visits this Resolver by the given visitor.
IManagedType	getManagedType() Returns the IManagedType associated with the field handled by this Resolver.
private IManagedType	resolveManagedType()
java.lang.String	toString()

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

buildTypeDeclaration, getMapping, getPath

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

addChild, buildType, 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

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

SingleValuedObjectFieldResolver

SingleValuedObjectFieldResolver(Resolver parent,
                                java.lang.String path)

Creates a new SingleValuedObjectFieldResolver.

Parameters:

parent - The parent Resolver, which is never null

path - The singled value object path, which is a path that is part of a state field path expression or a collection-valued path expression but that is not the root or leaf path

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

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

resolveManagedType

private IManagedType resolveManagedType()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Skip navigation links