Bruce Buttles wrote:
> Does anyone know of an open source JDO (Java Data Objects)
> implementation?
>
> I know of a number of great Object-Relational mapping tools but
> none that are JDO compliant.
Being one of the authors of "non-JDO-compliant" object relational tool
http://objectstyle.org/cayenne/ , I looked at the possibility to make
Cayenne a JDO implementation. But the situation here is rather similar
to EJB - you can either have a persistence layer that works now or have
a "standard-compliant" one.
1 year ago when I last checked, spec was rather raw and only "kinda
worked", so we decided to go with our own design. Of course we could've
chosen the hard way and join JCP in hope that we can make a difference,
but as usual developers have a "personal itch" and can't wait till it is
"scratched" via standards :-).
> I know JDO is still pretty new ... but the spec looks pretty
> cool.
> Also, I haven't seen any Apache activity around this yet.
>
> All the JDO Implementations I've found (except that in Sun's Forte)
> are either NOT free ... or free for "Non-Commercial" use.
>
> Anyone have some insight for me on this?
> Is there an Apache project out there for JDO that maybe I've
> overlooked?
>
> Thanks!
> -Bruce
>
--
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- Andrei (a.k.a. Andrus) Adamchik
Home of Cayenne - O/R Persistence Framework
http://objectstyle.org/cayenne/
email: andrus-jk at objectstyle dot org
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