[news.eclipse.stp.sca-tools] Re: Extending the SCA Meta Model

[Damien Fournier <damien.fournier@xxxxxxxx>]

Stephane Drapeau a écrit :
> Damien Fournier a écrit :
> > Hi Stéphane,
> >
> > Stephane Drapeau a écrit :
> > > Hi Damien,
> > >
> > > Meta object Id values can be the same for different meta models.
> > > Could you clarify how are you doing to add the OSGi type?
> > Following the sca model extension guide, I've extended the SCA model 
> > with an osgi implementation in a new Ecore model.
> > This implementation has an EAttribute named "bundle". I've also added 
> > a DocumentRoot (EObject) which
> > has an EReference on the "OsgiImplmentation" (as explained in the 
> > extension guide)
> >
> > Ecore and genmodel  files are accessible at
> >
> > http://svn.forge.objectweb.org/cgi-bin/viewcvs.cgi/frascati/trunk/assembly-factory/model/org.ow2.frascati.model.osgi/model/ 
> >
> >
> > This metal model has a different namespace of existing FraSCAti meta 
> > model (http://frascati.ow2.org/osgi).
> >
> > If Meta object Id values can be the same for different SCA model 
> > extensions, then how to make distinction between
> > two different implementations or bindings ? For instance when calling 
> > getImplementation() on a SCA Component, how
> > to know if this component is implemented with  java, spring, bpel, etc ?
Hi Stephane,

> You can use instanceof
>
> if(component.getImplementation() instanceof JavaImplementation) {
>   ....
> } else if (component.getImplementation() instanceof OSGiImplementation) {
>   ...
> }
Right
> cheers!
>
> Stephane Drapeau
> Obeo

But

What about the doSwitch() method provided by FrascatiSwitch or 
TuscanySwitch class (Obtained when generating model code)?
Since the generated doSwitch() call the caseXXX method according to meta 
object id.
Does this means that the doSwitch() cannot be used when having ecore 
model extensions ?

Whatever, I can use class name instead of meta object ids

Thanks for help

Damien