<ENTITY> not mapped

[hispeedsurfer]

Hi,

I using a InheritanceType.SINGLE_TABLE and try to query this, but without success.

Here my abstract superclass

@Entity
@Name("person")
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name = "PERSON_TYPE", discriminatorType = DiscriminatorType.STRING)
@SuppressWarnings("unused")
public abstract class Person extends BaseEntity{

 @Id @GeneratedValue
 @Column(name = "PERSON_ID")
 private Long id;
...

and the extended subclass

@Entity
@DiscriminatorValue("US")
@Name("user")
public class User extends Person
..... {

Now when I use to query ("from person where PERSON_TYPE='US' order by name, forename") the user class the following exception is thrown

Caused by: org.hibernate.hql.ast.QuerySyntaxException: person is not mapped [from person where PERSON_TYPE='US' order by name, forename]

All tables are created when the app is deployed.

Using JBoss-4.0.5.GA with Seam 1.1.1


Any idea whats wrong in my app?


Thanks
Andreas

[andydale]

Hi,

Try to change the query to the following instead:

from person p where p.class='US' order by name, forename"

Andy

[hispeedsurfer]

Hi Andy,

thank you for response. Unfortunatly your suggestion not bring the desired result.


On hibernate forum I found that absence Serializable can cause the problem, but the BaseEntity class that extends Person class implements serialisation.


I hope it's not a similar problem like http://www.jboss.com/index.html?module=bb&op=viewtopic&t=98829


Any other idea?


Thanks
Andreas

[hispeedsurfer]

Ok,

found out that I have to use the fully qualified name in query like

"from de.foo.ecp.model.Person p where p.class='US' order by name, forename"

But why. What is to do using only the entity name?


Thanks
Andreas