Hi,

I have two classes EmpA and EmpB that inherit from a Java interface IEmp. Another class Person has a one-to-one association to IEmp.

To do that, EmpA and EmpB are mapped as concrete classes, IEmp is of course not mapped, and I use the <any> tag in the Person mapping file in order to make association from Person object to EmpA or EmpB object (see diagram below).

IEmp <--------------------------- Person
^
|
-----------
| |
EmpA EmpB

I would like to make this association bi-directionnal to allow getting Person objects from EmpA/B objects.

Is it possible ?

Thanks


Hibernate version:
2.1.8

Mapping documents:

EmpA mapping file:
""""""""""""""""""""""
<hibernate-mapping default-cascade="save-update">

<class name="com.lectra.mapgentest.domain.test.onetoone.EmpA" table="EMP_A" lazy="true">

<id
name="id"
type="java.lang.Long">
<generator class="native"/>
</id>


<!--
Here I want to declare a reverse association named "person" from EmpA to Person
-->

</class>
</hibernate-mapping>

Person mapping file:
"""""""""""""""""""""""
<hibernate-mapping default-cascade="save-update">

<class name="com.lectra.mapgentest.domain.test.onetoone.Person" table="PERSON" lazy="true">

<id
name="id"
type="java.lang.Long">
<generator class="native"/>
</id>

<any name="emp" id-type="java.lang.Long">
<column name="emp_type" />
<column name="emp_id"/>
</any>

</class>
</hibernate-mapping>


Code between sessionFactory.openSession() and session.close():
N/A

Full stack trace of any exception that occurs:
N/A

Name and version of the database you are using:
Oracle 10g

The generated SQL (show_sql=true):
N/A

Debug level Hibernate log excerpt:
N/A

Well, it is possible with a bog standard one-to-many mapping.

But if I were you, I would very seriously consider using HB3 union-subclass for this stuff.