Unidirectional 1-1 and 1-n relationships between EJBs work, but
bidirectional relationships do not. There are easy ways to fake it,
though.
It's not strictly according to the specification - with Orion, you must
define the CMR fields as <cmp-field>s in the <entity>. pd2 and pdf say
you shouldn't. This may have been a change going from pd1 to pd2; most
of the CMR (and DO) stuff is based on pd1. I can't fault the Orion team
for not keeping up with every zigzag (there have been several).
Another thing I noticed is that (at least in 1.4.5) primitive EJB-QL
seems to work. When I create a simple findByField method, Orion figures
out how to create the appropriate finder-method in orion-ejb-jar.xml.
Jeff
>-----Original Message-----
>From: Randahl Fink Isaksen [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, February 21, 2001 4:48 AM
>To: Orion-Interest
>Subject: EJB 2.0 CMP features of Orion
>
>
>Has anyone tried out OR-mapping of 1-1 relationships and 1-n
>relationships
>between two EJBs? I have seen Jim Archer's fine tutorial about
>EJBs having a
>1-1 or 1-n relationship to a *dependent object*, but is the same thing
>possible between two EJBs?
>I know the web site states that Orion 1.2.9 does NOT support n-m
>relationships, but is 1-1 or 1-n supported in the latest
>release, and is the
>support for 1-1 and 1-n in accordance with the specification?
>
>Randahl
>
>
>
