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

[Stephane Drapeau <Stephane.Drapeau@xxxxxxx>]

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 ?

You can use instanceof

if(component.getImplementation() instanceof JavaImplementation) {
  ....
} else if (component.getImplementation() instanceof OSGiImplementation) {
  ...
}

cheers!

Stephane Drapeau
Obeo