I'm new to Hibernate but I have read two books on the subject. Book learned doesn't mean success so I'm trying to demonstrate hibernate with a real world example. I'm using Hibernate version:2.1 and I'm trying to understand how to define a networked relationship. For example:

---------------------
| PART |
| PK PART_ID |
| S PART_NAME |
---------------------
| |
| |
\/ \/
---------------------
| COMPONENT |
| FK ASSY_PART |
| FK COMP_PART|
| S REF_DESIG |
---------------------

Where all parts in an assembly are listed using the ASSY_PART = PART_ID and the COMP_PART references the actual part on the assembly.

I'm not sure what <set> assignments shold be in which objects. I need to have a component object because it has the customized information of the part assignment to an assembly instance. So I expect to have a PART and COMPONENT object. I'm not sure from the examples where the <set> assignments belong.

Any suggestions would be helpful.

This is a simple parent child relationship.
More reading - see http://www.hibernate.org/hib_docs/reference/en/html/example-parentchild.html

For some detailed information.