[
http://opensource.atlassian.com/projects/hibernate/browse/HHH-5024?page=c...
]
Hardy Ferentschik commented on HHH-5024:
----------------------------------------
Ok, in _org.hibernate.ejb.test.metagen.mappedsuperclass.idclass_ we have:
{code:title=AbstractAttribute.java|borderStyle=solid}}
@MappedSuperclass
public abstract class AbstractAttribute implements Serializable {
protected String key;
protected String value;
public AbstractAttribute() {
super();
}
public abstract String getOwner();
@Column(name = "attribute_key")
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
@Column(name = "attribute_value")
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}
{code}
{code:title=AbstractAttribute_.java|borderStyle=solid}}
@StaticMetamodel(AbstractAttribute.class)
public abstract class AbstractAttribute_ {
public static volatile SingularAttribute<AbstractAttribute, String> value;
public static volatile SingularAttribute<AbstractAttribute, String> owner;
public static volatile SingularAttribute<AbstractAttribute, String> key;
}
{code}
----
{code:title=ProductAttribute.java|borderStyle=solid}}
@Entity
@IdClass(value = ProductAttributeId.class)
public class ProductAttribute extends AbstractAttribute implements Serializable {
private String owner;
public ProductAttribute(String key, String value, String product) {
this.key = key;
this.value = value;
this.owner = product;
}
public ProductAttribute() {
super();
}
@Id
@Column(name = "owner")
public String getOwner() {
return owner;
}
public void setOwner(String owner) {
this.owner = owner;
}
@Id
@Column(name = "attribute_key")
public String getKey() {
return key;
}
}
{code}
{code:title=ProductAttribute_.java|borderStyle=solid}}
@StaticMetamodel(ProductAttribute.class)
public abstract class ProductAttribute_ extends
org.hibernate.ejb.test.metagen.mappedsuperclass.idclass.AbstractAttribute_ {
public static volatile SingularAttribute<ProductAttribute, String> owner;
public static volatile SingularAttribute<ProductAttribute, String> key;
}
{code}
----
{code:title=AbstractAttributeId.java|borderStyle=solid}}
@MappedSuperclass
public abstract class AbstractAttributeId implements Serializable {
protected String key;
public String getKey() {
return key;
}
public void setKey(String key) {
this.key = key;
}
}
{code}
{code:title=AbstractAttributeId_.java|borderStyle=solid}}
@StaticMetamodel(AbstractAttributeId.class)
public abstract class AbstractAttributeId_ {
public static volatile SingularAttribute<AbstractAttributeId, String> key;
}
{code}
----
{code:title=ProductAttributeId.java|borderStyle=solid}}
public class ProductAttributeId extends AbstractAttributeId {
private String owner;
public String getOwner() {
return owner;
}
public void setOwner(String owner) {
this.owner = owner;
}
@Override
public int hashCode() {
...
}
@Override
public boolean equals(Object obj) {
...
}
}
{code}
----
What do you think is wrong in the metamodel 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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