How to Synchronize an association with Database Changes

Hi,
I was wondering if someone has any ideas about how to manage FK changes with the BC associations. In general my questions center around tooling support for re-factoring associations and syncing them with db changes. I have read the following but all these discuss entity attribute related changes which are simple to manage.
http://download.oracle.com/docs/cd/E14571_01/web.1111/b31974/bcentities.htm#ADFFD169
http://jdeveloperfaq.blogspot.com/2010/02/faq-15-how-to-synchronize-adf-entity.html
Re: How to manage ADF BC components in the case of datamodel changes
I have 4 use cases.
Case 1: When an association is added to the db, how does one bring it to the BC layer.
Case 2: Deletion of an association from db is easy to manage because once it exists in bc layer, it can be treated as a valid one at the model later regardless of its existence on the db.
Case 3: When an association is modeled in BC layer and a corresponding FK does not exist in DB. How does one turn that association into a physical FK in the db if one wants to install a FK. What is the naming convention for installing such a db FK constraint that can sync easily with tooling. I understand that it is not necessary to have a physical FK as the BC layer will take care of enforcing the relationship. But my requirement is that first the modeling at bc layer can go on and then the constraint can be implemented at a later date.
Case 4: When a FK is renamed in db how does one reconcile that with a previously created association at the model layer based on an old fk with a different name.
Thanks,

The synchronize with DB will pick up new FK defined in the DB and will suggest to add them to your ADF BC layer.
You can also generate DB objects from your ADF BC layer.
Drag your ADF BC into an ADF BC diagram, select all of them, right click and select Generate Business Object->Database Objects
This will create the objects in the DB - note though that this will override your DB objects.

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