Re: [Springframework-developer] OJB support

[Brian M. <mcc...@fo...>]

Juergen,


Thank you! Now that there are some basics to work from, I'd be happy to=20=

help out =3D)

Getting a connection from a PB instance can be done via=20
pb.serviceConnectionManager.getConnection();

Also, if you want change detectopm without real object level=20
transactions, this can be done via a couple fairly simple listeners on=20=

the PB instance (copy-on-read/compare-on-commit). The code for this is=20=

hidden in OJB CVS but is all of maybe 60 lines, I'd be happy to add it=20=

to Spring if anyone wants it.

-Brian

On Jul 2, 2004, at 3:02 PM, j=FCrgen h=F6ller [werk3AT] wrote:

> Hi everybody,
>
> On the occasion of the recent TSS thread on OJB 1.0 final, I've=20
> decided to give OJB PersistenceBroker integration a go. I've already=20=

> committed the initial bunch a couple of hours ago, providing=20
> PersistenceBrokerTemplate, PersistenceBrokerTransactionManager, etc.
>
> This initial stuff took just about 4 hours, including getting OJB to=20=

> work with a simple example! I was pleasantly surprised by how easy OJB=20=

> is to set up. I'm not fond really fond of its static initializer=20
> model, but it does work and is simple enough to get going.
>
> I'm currently working on support for exposing the JDBC Connection in=20=

> PersistenceBrokerTransactionManager and other refinements. I plan to=20=

> add a Petclinic data access version for OJB this weekend: As far as I=20=

> can judge at this point of time, this should be simple enough to do.
>
> One of the distinct characteristics of OJB's PersistenceBroker is that=20=

> it offers all of OJB's mapping and querying capabilities, but does not=20=

> attempt to provide object-level transactions, i.e. does not do=20
> automatic change detection but rather rely on explicit store calls.=20
> For Petclinic-style web apps, this is more than enough.
>
> The stuff in CVS does work already, so whoever's interested, feel free=20=

> to have a look at it :-)
>
> Juergen
>
>
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