Hi Brad,
First, I suggest that you post Cayenne messages to cayenne-user mailing
list, instead of sending them to individual developers.
http://objectstyle.org/cayenne/lists.html
Anyway, thanks for your interest in Cayenne. I've been doing Objective C
for a while so we should have something in common :-).
1. O/R and EJB.
EJB != O/R
EJB != persistence
My advise is, don't use EJB if you don't have to use it (like your boss
already made this decision or something) !!!
BTW, there was a cool online EJB presentation done by a Smalltalker. I just
can't find the link now. Anyone on the list remembers that? Holger?
2. EJB and Cayenne
Due to the lack of interest in our development team, Cayenne & EJB
integration is not straightforward as of now. As you may see from the older
message archives we were looking in this direction a bit in the past, but
the actual implementation haven't started yet. As for the new EJB features
that are "kind of O/R", I think this is a waste of time and an admission by
Sun that EJB is useless for the database access. In particular this is an
attempt to rescue failed Entity Beans concept, that are not used even by
hardcore EJB programmers (at least those that I know).
On the other hand, using Cayenne without EJB will give you a framework
conceptually similar to EOF/TopLink.
Andrus
>----- Original Message -----
>From: "Brad Messerle" <bradleyfmesserl..ahoo.com>
>Subject: Cayenne Porject
>
>
> > I am looking for a O/R tool. I am new to java but have
> > been doing Smalltalk for years. I have been using
> > VisualAge Object Extendter which is similar to TopLink
> > or Web Objects. I have a question about EJBs. Do I
> > need a mapping tool if I choose to use EJB's? I
> > understand that EJB has a lot of persistence stuff
> > built in, but do I still need something that will
> > handle relationships and inheritance?.
> >
> >
> > Thanks
> > Brad Messerle
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