[OJB-developers] Storing references (or updating collections on referenced objects) -> defining the correct PBImp behavior !

[Leandro R. S. C. <le...@ib...>]

Hi all. this email is mainly for MBAIRD because of his comments in
PBImpl.java

I'm trying to store and object that should be part of a collection of
another object but the collection is not updated by PBImpl.java. 
To make it more concrete here is an example

<class-descriptor class="Project" table="PROJECT">
   <field-descriptor id="1" 
 		name="id" 
		column="PROJECT_ID" 
		jdbc-type="INTEGER" 
		primarykey="true" 
                autoincrement="true"/>

   <collection-descriptor name="users"
	element-class-ref="User"
        auto-retrieve="true"
        auto-update="false"
        auto-delete="true">
      <inverse-foreignkey field-id-ref="2"/>
   </collection-descriptor>
</class-descriptor>

<class-descriptor class="User" table="USER">

    <field-descriptor id="1" 
		name="id" 
		column="USER_ID" 
		jdbc-type="INTEGER" 
		primarykey="true" 
		autoincrement="true"/>
    <field-descriptor id="2" 
		name="project_id" 
		column="PROJECT_ID" 
		jdbc-type="INTEGER"/>

    <reference-descriptor name="project" 	
			class-ref="Project" 
			auto-retrieve="true" 
			auto-update="true">
      <foreignkey field-id-ref="2" />
    </reference-descriptor>

</class-descriptor>

When I add a User to a existing Project the collection users in Project
is not updated by PBImpl.java.

When I was looking up PBImpl src I saw a comment in asserFKAssignment()
:
      /**
       * MBAIRD
       * we have 'disassociated' this object from the referenced object,
the object representing the ord is now null,
       * so set the fk to null.
       *
       * Note: I can't believe this wasn't tested (as of June9/2002),
attaching and removing objects seems to be a
       * pretty important piece of functionality.
       *
       */

I don't understand if PBImpl should update collections on referenced
objects or we must do it by hand ?

Can some help me define the correct behavior ?

-- 
Leandro Rodrigo Saad Cruz
IT - Inter Business Tecnologia e Servicos (IB)
http://www.ibnetwork.com.br