Sounds ok... though what approach are you taking for transaction management?
Normally Isis does the xactn mgmt for free. I guess you are doing that stuff yourself? And (since we don't provide any hooks) presumably there is no 2PC/XA stuff, so there are possibilities of data being committed to one database but not the other? Dan On 5 June 2015 at 20:36, Vladimir Nišević <vnise...@gmail.com> wrote: > Hi Dan, yes, I have created two domain services representing/managing > connections to those two databases. On PostConstrunct of each of them I > create two Datanucleus PersistenceManagerFactories and the domain service > methods use appropriate Dao's creating the PersistenceManager and managing > the transactions manually as needed. > I can gladly share my code if you wish to review it or give me some > feedback. > > BR,Vladimir > > > > Am 05.06.2015 um 18:24 schrieb Dan Haywood <d...@haywood-associates.co.uk > >: > > > > Hi Vladimir, > > > > sorry no-one ever got back to you on this... did you come up with a > > solution? > > > > otherwise, I have some thoughts... > > > > Cheers > > Dan > > > > > >> On 21 May 2015 at 05:51, Vladimir Nišević <vnise...@gmail.com> wrote: > >> > >> Hi guys, we have a situation where we need to access to two(or more) > oracle > >> and one ms-sql database and read/write data from/to this databases at > the > >> same time. > >> > >> I see that datanucleus supports (to some degree) JDO data federation > >> > http://www.datanucleus.org/products/datanucleus/jdo/data_federation.html > >> so > >> this could be the way. > >> > >> My question is, how to integrate this feature into Isis config files and > >> how to use it. It would be enough if I still use container > >> (DomainObjectContainer) for single database, but I need to read/write > data > >> somehow to another databases as well - so this another DB's are kind of > >> backend systems... > >> > >> Thanks > >> Vladimir Nisevic > >> >
