[hibernate-issues] [Hibernate-JIRA] Created: (HHH-5835) Error/Bug getting PluralAttribute on SessionFactoyImpl using @Inheritance and @MappedSuperclass

[Francisco Philip (JIRA)]

Error/Bug getting PluralAttribute on SessionFactoyImpl using @Inheritance and @MappedSuperclass
-----------------------------------------------------------------------------------------------

                 Key: HHH-5835
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5835
             Project: Hibernate Core
          Issue Type: Bug
          Components: core
    Affects Versions: 3.5.5
         Environment: testcase java6-sun
            Reporter: Francisco Philip


Hi, I'm looking an attribute by name    root.get("nameOfCollection"), but i think that we have a limitation or bug because if the entity inheritance of this collection they don't resolve correctly the name of "role"  to call a  getCollectionPersister method of SessionFactory.

Example
{noformat} 
@MappedSuperclass
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn( name = "dtype")
class c{
@CollectionOfElements
private Collection<EmbeddedEntity> nameOfCollection;
....
}

@Entity
EntityA extends  AbstractEntity{
}

@Entity
EntityB extends  AbstractEntity{
@CollectionOfElements
private Collection<EmbeddedEntity> nameOfCollection2;
}
{noformat} 
if I call root.get("nameOfCollection") of they cant find it because de variable role is resolved as "AbstractEntity.nameOfCollection", meantime the collectionPersisters have stored  EntityA.nameOfCollection, EntityB.nameOfCollection and EntityB.nameOfCollection2

this is a bug?


SessionFactoryImpl.java
{noformat} 
	public CollectionPersister getCollectionPersister(String role) throws MappingException {
		CollectionPersister result = (CollectionPersister) collectionPersisters.get(role);
		if (result==null) {
			throw new MappingException( "Unknown collection role: " + role );
		}
		return result;
	}
{noformat} 

AbstractManagedType.java
{noformat} 
	@SuppressWarnings({ "unchecked" })
	public Attribute<? super X, ?> getAttribute(String name) {
		Attribute<? super X, ?> attribute = declaredAttributes.get( name );
		if ( attribute == null && getSupertype() != null ) {
			attribute = getSupertype().getAttribute( name );
		}
		return attribute;
	}
{noformat} 

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