[news.eclipse.tools.emf] Re: Access EcoreModel instance

[Ed Merks <merks@xxxxxxxxxx>]

Karkon,

Comments below.

harkon wrote:
> Hi Ed!
>
> Yes, my intention is to make a m2m transformation on Ecore models and 
> to see the changes on the fly.
>
> Okay, all editors implement the interface you mentioned below but now:
> The user chooses which model is the source and which one is the 
> destiantion. This decision is made via a workspace browser and the 
> files are selected.
>
> After that decision the model shall be opened with the default editor 
> (e.g. Ecore Model Editor).
>
> Maybe one model is already opened.
>
> How to find now the corresponding editor? 
Each workbench page provides access to all the open editors, so I guess 
you could scan them all...
> And above all how to automatically open a file in an editor from 
> another plugin?
The generated wizard's performFinish shows how to do that.

I could imagine another way to implement such a thing is as a popup 
action on an EPackage...
> Hmm, weird ;)
>
> Cheers
> harkon
>
> Ed Merks wrote:
>
> > Harkon,
>
> > Comments below.
>
>
> > harkon wrote:
> > > Hi everybody...
> > >
> > > I encountered a problem in accessing an instance of a Ecore modell 
> > > residing in my workspace of Eclipse.
> > >
> > > Situation: I want to access an Ecore Modell from a newly created 
> > > Plugin existing in the current Eclipse instance. This can be done 
> > > via an URL file based. if I now open die URL I can access the 
> > > content and everything is fine.
> > >
> > > Now if an Ecore Model editor is open in the same time the model 
> > > won't be updated immediately. I have to refresh the display.
> > You haven't talked about making modifications yet, so I'm missing the 
> > connection or a step as to why the display needs refreshing.
> > > Question: The Ecore Model Editor owns a Ecore Model reference itself 
> > > (EObject root node). How can I access this root node of the opened 
> > > Ecore Model Editor?
> > All generated editors implement IEditingDomainProvider so you can 
> > cast the editor to that, get the editing domain, and from that you 
> > have access to the resource set in which all the resources being 
> > edited are kept.
> > > The background is: I want to alter the content of an Ecore model via 
> > > EMF techniques and whenever a change was registered the EMF fires 
> > > various events about this update and the Ecore Model Editor changes 
> > > its display "on the fly". 
> > Be sure to use the command stack of the editing domain to make all 
> > your changes so that the editor can undo the changes and knows that 
> > it's dirty and needs to save.
> > > Now if I change the model from another Eclipse Plugin via this root 
> > > node instance of the opened Ecore Model Editor I can "see" the 
> > > changes in the moment they happen...
> > >
> > > I hope I made myself clear enough that some one could help me ;)
> > >
> > > Cheers
> > > harkon