On 30 April 2013 09:56, Bibonne Fabrice <[email protected]> wrote:
> Hi, > > I'm new with Isis. Welcome to the mailing list, Fabrice. > I read presensation introducing Isis. It'd be useful to reference the PPT. I'm guessing it's the ones here [1] ? > On slide 4 it is written one can use Isis with custom persistence. But on > slide 8 (Isis Architecture), this possibility doesn't appear neither in > properties file. That's true enough... > So my questions are : > Is there a way to use custom persistence in Isis (and if yes, how) ? > Yes, but it's a pretty advanced topic. We perhaps should remove mention of that ability from slide 4. To write a custom persistor, one needs to implement the PersistenceMechanismInstaller interface, that acts as a factory. The main API to be implemented is called ObjectStore, though there are a bunch of other things that must be considered, (eg lazy loading, dirty object tracking). > will there be one day an alternative to use hibernate for persistence ? > > The short answer is no: Hibernate has an incompatible license with Apache [2], and so will not be supported unless they change to a more permissive license. The good news though is that the JDO/DataNucleus objectstore that we have provides broadly similar (I would argue superior) capabilities. The quickstart archetype [3] comes with JDO configured, and there's plenty of material on the website [4]. You can always ask questions here as well. Hope that helps Dan > Regards, > > Fabrice > [1] http://isis.apache.org/learning-more/presentations.html [2] http://www.apache.org/legal/3party.html#category-x [3] http://isis.apache.org/getting-started/quickstart-archetype.html [4] http://isis.apache.org/components/objectstores/jdo/about.html
