Having read the Oracle web site on CMR:

http://otn.oracle.com/tech/java/oc4j/doc_library/902/ejb/ormap.htm

I am left wondering...

Does JBOSS CMP require ( ie mandatory / must have ) a relationships section in the jbosscmp-jdbc if there exist a relation in the ejb-jar.

The reason I ask is the Oracle doco implies that in some servers it is not necessary to manually specify a key mapping as the container will default.

What does Jboss need / do?