Oleg knows some about the Castor stuff. We are discussing it at Telkel and
I find a few things interesting.
The idea to separate the "persistence" schema for the persistent object,
from the logic that lays in EJB might be a powerful one imho.
>From what Vincent tells me, Castor can generate java classes that are
accessors to the fields stored in the database based on the XMLSchema
definition. I still don't know how that plays with an EJB container and in
other words, how do we map the persistent fields to the fields in an EJB.
It is something we need to investigate since many folks will want to start
from the "persistent" data before they write any logic in java classes.
Bottom line is that this integration might help us for EJB2.0 and it's
persistence engine, we need to look at it in detail. Don't discard Ozone
yet, if they provide an automated way to talk to Castor and work from java
classes down to the persistence, then their work is interesting.
Daniel from SoftwareBuero (the guys behind Ozone) is starting tomorrow with
Telkel for a period of 6 month, we will investigate that with him. This
partnership might make sense, don't discard it yet.
marc
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Peter Shillan
> Sent: Thursday, August 31, 2000 4:37 AM
> To: jBoss Dev
> Subject: [jBoss-Dev] Ozone Integration
>
>
> Hi there,
>
> I have been doing a little digging around as a result of trying
> to build the
> Ozone CVS on my machine and made a discovery. Ozone is not really
> an Object
> Database, I believe. Let me explain...
>
> Ozone is an XML database. Ozone uses a framework called Castor to
> implement
> a mapping from Java Object into XML. Castor is also an O/R
> mapping tool and
> is, apparently, going to be used in OpenEJB as it's O/R tool.
>
> All of this set me thinking that integrating Ozone might not be a
> good idea
> as you're not gaining anything - you're still using a mapping tool and not
> storing to a 'true' object database.
>
> If anyone knows better than me about this, or has any thought or opinions,
> I'd appreciate them sharing them with the group.
>
> Regards,
>
> Peter.
>
>
>
