A Class Hierarchy and multiple relation with Torque

[Xavier]

Hi all,

I try to anderstand how to generate a class hierarchy with Torque, and
multiple relation...

My problem is to generate that:

    |Item |*--|
    -------   |
       ^      |
       |      |
     Group*---|

Sorry for my UML in ascii, is not perfect :-/

I want generate a class "item", from witch one herit "Group".
Group containd multiple "item" and "item" cas be containd by multiple group.

So, 2 questions:
How work hierarchy?
------------------
I start to wrote that:

  <table name="MyTable" javaName="Item"  idMethod="autoincrement">

    <column name="CLASS" inheritance="single" type="CHAR" size="5"...>
      <inheritance key="G" class="Group"
extends="pf.cs.csinterne.business.om.Item"/>
    </column>
    <column name="ID" required="true" autoIncrement="true" primaryKey="true"
type="INTEGER">
    <column name="GROUP_ATTRIBUT" required="true" type="INTEGER"
javaName="att1"/>

  </table>

But, I dont anderstand how to create GROUP_ATTRIBUT only on group class...
an no on the mother class item.

It is possible to manipulate n to n relation with peer?
-------------------------------------------------------

Thanks for that.
Xavier.



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