[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5024) MetadataContext#registerAttribute does not recognize inherited fields
[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-5024?page=c...
]
Hardy Ferentschik commented on HHH-5024:
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I was looking at the tests
_org.hibernate.ejb.test.metagen.mappedsuperclass.idclass.MappedSuperclassWithEntityWithIdClassTest_
and
_org.hibernate.ejb.test.metagen.mappedsuperclass.embeddedid.MappedSuperclassWithEmbeddedIdTest_
and there is problem with the metamodel getting populated, but where do you think the
actual static classes are wrong?
In _MappedSuperclassWithEntityWithIdClassTest_ we have the above mentioned
_AbtractProduct_, _Product_ and _ProductId_ which result in:
{code:title=AbstractProduct_.java|borderStyle=solid}
package org.hibernate.ejb.test.metagen.mappedsuperclass.embeddedid;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;
@StaticMetamodel(AbstractProduct.class)
public abstract class AbstractProduct_ {
public static volatile SingularAttribute<AbstractProduct, ProductId> id;
}
{code}
{code:title=Product_.java|borderStyle=solid}
package org.hibernate.ejb.test.metagen.mappedsuperclass.embeddedid;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;
@StaticMetamodel(Product.class)
public abstract class Product_ extends
org.hibernate.ejb.test.metagen.mappedsuperclass.embeddedid.AbstractProduct_ {
public static volatile SingularAttribute<Product, String> description;
}
{code}
and
{code:title=ProductId_.java|borderStyle=solid}
package org.hibernate.ejb.test.metagen.mappedsuperclass.embeddedid;
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;
@StaticMetamodel(ProductId.class)
public abstract class ProductId_ {
public static volatile SingularAttribute<ProductId, Integer> id;
public static volatile SingularAttribute<ProductId, String> code;
}
{code}
Just trying to find out whether this is a problem with the generated classes.
MetadataContext#registerAttribute does not recognize inherited
fields
---------------------------------------------------------------------
Key: HHH-5024
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5024
Project: Hibernate ORM
Issue Type: Bug
Components: entity-manager, metamodel
Affects Versions: 3.5.0-CR-2, 3.5.1, 4.0.0.Final
Environment: Hibernate 3.5.0-CR-2, JPA Modelgen 1.0.0-CR-1
Reporter: Adrian Hummel
Assignee: Steve Ebersole
Fix For: 4.1.0
Attachments: bugreport.zip, hhh-5024.zip, hhh-5024.zip
Time Spent: 6.85h
The embeddable class {{CustomerId}} (see attached ZIP) inherits from the base class
{{AbstractIdentity}} (annotated with {{@MappedSuperclass}}). The metamodel classes for
these two classes are correctly generated:
{code:title=AbstractIdentity_.java|borderStyle=solid}
import javax.persistence.metamodel.SingularAttribute;
import javax.persistence.metamodel.StaticMetamodel;
@StaticMetamodel(AbstractIdentity.class)
public abstract class AbstractIdentity_ {
public static volatile SingularAttribute<AbstractIdentity, String> id;
}
{code}
and
{code:title=CustomerId_.java|borderStyle=solid}
import javax.persistence.metamodel.StaticMetamodel;
@StaticMetamodel(CustomerId.class)
public abstract class CustomerId_ extends AbstractIdentity_ {
}
{code}
When building the entity manager factory, {{MetadataContext#registerAttribute}} (line
378) tries to resolve the field {{CustomerId_.id}} using {{Class#getDeclaredField}}. This
results in a {{NoSuchFieldException}} because the field is declared in the super class
{{AbstractIdentity_}}.
Proposed solution: Since all field declarations in the metamodel are public, the
{{Class#getField}} method should be used instead.
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