[news.eclipse.tools.emf] Re: Create Child programmatically

[addur737@xxxxxxxx (Artur Kronenberg)]

Ed,

that worked very nice. The AddCommand added my child element to the tree 
and set the editor dirty. Also the undo stuff works.

One last question :) 

To create the command I need the owner which would be a category Node for 
my model. So currently I am doing this to get the owner (which I think is 
not the right way):

I get the EMF editor and get the EditingDomain. From the editingDomain I 
get the Resourceset and from that I get the resources. Then I iterate 
through the resources and find the XMIResourceImpl. After this I iterate 
through those contents and find my root node. From that node I get the 
owner.

Is there a more sane way of doing this? 

Best regards,
Artur

Ed Merks wrote:

> Artur,

> Probably it's easier to look at using an AddCommand.  If you look at the 
> Javadoc, it shows that an AddCommand will do the equivalent of this:

>  *   
> ((EList)((EObject)owner).eGet((EStructuralFeature)feature)).addAll(index, 
> (Collection)collection);

> Or in terms of generated code it's equivalent to

>     owner.getFoo().addAll(listOfFoos).

> In the end, you do have to determine which object  you're adding stuff 
> to (the owner), which feature you're adding it to (foo), and what's 
> being added...


> Artur Kronenberg wrote:
> > Hi Ed,
> >
> > thank you for your fast reply. I tried using the CreateChildrenCommand 
> > by getting a command from the AdapterFactoryEditingDomain but it 
> > somehow did not work out for me. I don't quite get how to use those 
> > commands exactly to achieve what I need.
> >
> > If I would use the 
> > AdapterFactoryEditingDomain.createCinnabd(CreateChildCommand.class, 
> > new CommandParameters(owner, feature, collection<?>) what would be the 
> > parameters for the CommandParameters.
> >
> > I have my Editor and therefor I could access everything in it. I still 
> > couldn't figure out how to get the owner for my new object (i supposed 
> > this should be the parent node?) If I thate the resourceset from my 
> > editor and iterate through its contents then I can get my rootNodeImpl 
> > and get all the childNodes and find out where to put my new created 
> > node, but this seems to be kind of a weird way to achieve this?
> > Also, what would be the feature atribute I would have to set there? 
> > From debuggin I think the collection I have to pass the 
> > commandParameters I can get by calling getNewChildDescriptors from my 
> > editingDomain?
> > Thank you for your help.
> >
> > Best regards,
> > Artur
> >
> > Ed Merks wrote:
> >
> > > Artur,
> >
> > > You could use CreateChildCommand and execute it on the command 
> > > stack.  Or just use an AddCommand directly (also executing it on the 
> > > command stack).
> >
> >
> > > Artur Kronenberg wrote:
> > > > Hi,
> > > >
> > > > I have the following problem:
> > > >
> > > > I created an EMF editor that is handeling a specific task in itself. 
> > > > As soon as the element is created (through mouseclicking) the editor 
> > > > synchronizes perfectly and everything works just fine.
> > > >
> > > > The problem is, that I need the Child created programmatically by a 
> > > > right click on my gmf editor.
> > > >
> > > > I have no problem getting the name for the child Element. I know I 
> > > > can create a child element with my FactoryImpl.createChildElement() 
> > > > and set the name on the returned object. But how can I add the 
> > > > element to the model of the EMF editor so it gets updated, undo is 
> > > > supported and so on..
> > > >
> > > > basically I try to use the action that is give through the UI by 
> > > > rightclicking on a node, creating a child but only programmatically.
> > > >
> > > > Is there a way to do that?
> > > > Best regards,
> > > > Artur