CMP EJB in 1.1/1.2..., mapping problems

Question

Hello,
I'm a little bit confused by all these different EJB specifications and products...
I want to use CMP EJB, because as far as I understand this topic, the container should do a lot of work for me (transaction management, connection pooling) and all tutorials tell me to prefer CMP ;-)
Now I've got a Java class (to became my CMP EJB) like this:
class doc {
Descriptor descr;
String body;
and another class:
class descriptor {
int id;
String title;
My database contains two tables for both classes:
table descr:
id int (primary key);
title varchar;
table doc:
fk_descr int; // foreign key to descr
body varchar;
Is it possible to make a CMP EJB using these two tables and using a Descriptor object? Which versions of EJB can handle this? Do you have any expirience with that?
All examples I've read are always using only one table and classes containing only basic types like int, String.
Thank you,
Jens

Answer 1

What you've described is a 1-1 relationship between two classes, which is not supported by CMP until EJB 2.0.
-Peris