Mixing annotations and hbm.xml

[jc7442]

Is it possible to mix for the same entity bean annotations and hbm.xml ?

In my application I have an interface Animal and several subclasses (Dog, Cat, ...). Since it seems that annotations to declare interface and subclasses are not supported (specified ??) in EJB3 (http://forum.hibernate.org/viewtopic.php?p=2238824#2238824), I'd like to declare in hbm.xml only the annotaions for the interface and to declare other fields of subclasses using ejb3 annotation:

public interface Pet {
int getId();
void setId(int id);
}

@Entity()
public class Dog {
...
@ManyToOne
public void getChildren() {
...}

<hibernate-mapping>
<class name="Pet"
 table="Pet" lazy="false">
 <id name="id" column="PET_ID">
 <generator class="native" />
 </id>
 <joined-subclass
 name="fr.biomerieux.dnachip.bo.classification.DefaultLeafBO"
 extends="fr.biomerieux.dnachip.bo.classification.Leaf"
 lazy="false">
 <key column="LEAF_ID" />
 <property name="name" />
 </joined-subclass>
 <joined-subclass name="fr.biomerieux.dnachip.bo.sample.SampleBO"
 extends="fr.biomerieux.dnachip.bo.classification.Leaf"
 lazy="false">
 <key column="LEAF_ID" />
 <property name="name" />
 <property name="elements" />
 <property name="site" />
 <many-to-one name="taxon" />
 </joined-subclass>
 </class>
</hibernate-mapping>

[jc7442]

Sorry, I rewriite the post, I made a mistake !!!

"jc7442" wrote:
Is it possible to mix for the same entity bean annotations and hbm.xml ?

In my application I have an interface Animal and several subclasses (Dog, Cat, ...). Since it seems that annotations to declare interface and subclasses are not supported (specified ??) in EJB3 (http://forum.hibernate.org/viewtopic.php?p=2238824#2238824), I'd like to declare in hbm.xml only the annotaions for the interface and to declare other fields of subclasses using ejb3 annotation:

public interface Pet {
int getId();
void setId(int id);
}

@Entity()
public class Dog {
...
@ManyToOne
public void getChildren() {
...}

<hibernate-mapping>
<class name="Pet"
 table="Pet" lazy="false">
 <id name="id" column="PET_ID">
 <generator class="native" />
 </id>
 <joined-subclass
 name="Dog"
 extends="Pet"
 lazy="false">
 <key column="PET_ID" />
 </joined-subclass>
 </class>
</hibernate-mapping>

If I writte that kinds of things, I have an exception due to a duplicate declaration for my class Dog.

A lot of class inherits from my interface and I'd preferred to use annotation instead of hbm.xml files. Is there a way to mix for the same entity hbm.xml and annotations ?

[bill.burke]

no support for XML overrides yet, but you can specify one bean in XML the other in annotations and set up a relationship between the two...

[epbernard]

you can't mix a hierarchy so far. It's a hard one to do.