(This thread has been duplicated on the dev list, see Ari's reply
[1]. Also Randy doesn't seem to be a user list subscriber, so I am
cc'ying to him)
> - Are there Cayenne functionalities available to Classic, but not
> JPA version?
Both will be using the same stack. The principal difference is the
level of access to that stack. JPA hides it completely. Cayenne
allows stack access from Java code. Actually Cayenne JPA will have a
non-standard way to expose the stack to the apps. Also I hope we'll
provide access to most "classic" features in a JPA-compliant manner -
via provider extensions (see below).
> - Could JPA modelling tools (e.g. Eclipse Dali, etc.) be used in
> place of Cayenne Modeller?
Generally yes, as JPA mapping is presumably provider-agnostic.
One issue with third party tools (I haven't looked at any yet, so
that's purely my speculation), is that there won't be UI support for
provider-specific features. E.g. Cayenne provider allows to map a non-
JTA DataSource, kind of like Cayenne Classic does, same for
SQLTemplate and SelectQuery. You'll be able to map these extensions
via provider properties, but you'll have to know the right property
names.
Andrus
[1] http://objectstyle.org/cayenne/lists/cayenne-devel/2007/03/0022.html
On Mar 6, 2007, at 9:35 PM, Randy Leonard wrote:
> I've read some earlier threads on Cayenne 3.0, and have a few
> questions:
>
> - Is Cayenne 3.0 Classic significantly different from Cayenne 2.x?
> - Could JPA modelling tools (e.g. Eclipse Dali, etc.) be used in
> place of Cayenne Modeller?
> - Are there Cayenne functionalities available to Classic, but not
> JPA version?
>
>
> Also, I posted a thread last July concerning multiple models in one
> application:
> http://mail-archives.apache.org/mod_mbox/cayenne-dev/200607.mbox/%
> 3cDE5966B5-0FDE-436A-89E2-CE42A9F3CE2..bjectstyle.org%3e
>
> Two questions on this:
> - Curious if Cayenne 3 would support this?
> - If not, would the custom solution described still apply to
> Cayenne 3?
>
> Thanks,
> Randy
>
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