Put an attribute twice in a destination class

[Erwann]

Hi!

I want put a source class which is like :

- DadSrc :
  -- String techid;
  -- Set<ChildSrc> childs;
  -- ...
- ChildSrc :
  -- String techid;
  -- ...

… in a destination class which is like :

- DadDest :
  -- String techid;
  -- Set<ChildDest> childs;
  -- ...
- ChildDest :
  -- String techid;
  -- DadDest dad;
  -- ...

If you see, the second is bidirectional. I would like put the dad in each ChildDest. A dad with just a techid (business key) if possible.

I tried things like :

<mapping>
        <class-a>package.DadSrc</class-a>
        <class-b>package.DadDest</class-b>
        <field type="one-way">
            <a>techid</a>
            <b>childs.dad.techid</b>
        </field>
    </mapping>

… but it seems not working.

If anybody can help me…