[ojb-users] Problems with Foreign-Key

[<jo...@ga...>]

Hi,

I have a quite simple problem:

My Sample has two Classes, eObject and attribute, with one eObject
having several attributes and 1 attribute belong to one eObject.

The Mapping...

   <ClassDescriptor id="1">
      <class.name>com.eobjects.EObject</class.name>
      <table.name>eobject</table.name>
      <FieldDescriptor id="1">
         <field.name>ID</field.name>
         <column.name>ID</column.name>
         <jdbc_type>INTEGER</jdbc_type>
         <PrimaryKey>true</PrimaryKey>
       </FieldDescriptor>
...
      <CollectionDescriptor id="1">
         <cdfield.name>attributes</cdfield.name>
         <items.class>com.eobjects.Attribute</items.class>
         <inverse_fk_descriptor_ids>5</inverse_fk_descriptor_ids>
         <auto.update>true</auto.update>
      </CollectionDescriptor>
   </ClassDescriptor>
<ClassDescriptor id="2">
      <class.name>com.eobjects.Attribute</class.name>
      <table.name>attribute</table.name>
      <FieldDescriptor id="1">
         <field.name>ID</field.name>
         <column.name>ID</column.name>
         <jdbc_type>INTEGER</jdbc_type>
         <PrimaryKey>true</PrimaryKey>
      </FieldDescriptor>
...
      <FieldDescriptor id="5">
         <field.name>eObjectID</field.name>
         <column.name>objID</column.name>
         <jdbc_type>INTEGER</jdbc_type>
      </FieldDescriptor>
      <ReferenceDescriptor id="1">
         <rdfield.name>eObject</rdfield.name>
         <referenced.class>com.eobjects.EObject</referenced.class>
         <fk_descriptor_ids>5</fk_descriptor_ids>
      </ReferenceDescriptor>
   </ClassDescriptor>

When I create an eObject and set it's attributes Vector and store it (I just
call broker.store(eObject), the ID is given by Database (OJB sends a select
to get
it)) ), both eObject and attributes are saved, BUT
the Value ob objID in Table Attribute is 0 althought the eObject it belongs
to has received the ID 2. So I can't find my attributes when I reload my
eObject.
But I can't set the foreign-key by myself, as I don't know it until a new
eObject is
saved for the first time.

What's wrong?

Joerg