Hello,

I have build a prototype applicition using an evalution-version of a
commercial JDO application. However, we'll get a commercial deployment much
sooner than anticipated, there will be more developers than just me, and it
seems better for us to use open-source products only.

I get the impression that OBJ is most suited for our needs but I'm not sure
yet how to switch.

- How suitable is OBJ-JDO for commercial deployement, given it's dependancy
on the sun-ri?

- Using OBJ-JDO will give me the fastest transition-path, switching to
OJB-ODMG API can happen a bit slower. However, where can I find
documentation on the OBJ vender-extensions for the JDO metadata?

- Is there any schema-generator for OJB? Or does OJB always map between
existing schema and existing objects?
(For me it's better if the implementation handles schema-generation!)

- How does OJB handle ordering of data in java.util.Lists? Is the order in
the list maintained upon loading from DB? (The various JDO implementations
which I tried can maintain this order using an extra column in the table
linking the sides of the m:n relationship).
I need an easy way to maintain order of elements in a java.util.List field.

- I'm currently using MySQL database, but will probably be using hsqldb in
future because it's easier to set up on different systems when we don't have
to share data yet.

I think these are my most urgent questions for the moment. I'd appreciate
any assistence.

With regards,

--Tim van der Leeuw

---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to