[news.eclipse.modeling.gmf] how to create "abstract" node reference in g

[Sylvain <sylvain.maillard@xxxxxxxxxxxxxx>]

Hi all,

I'm new to GMF and I have to build a diagram editor. My domain model 
contains a Abstract Element that can be composite. Several classes 
specialize this Abstract Element. I saw that it's possible to have 
recursive hierarchies, but what if the composite top-node is "abstract" ??

Attached is my domain model.

Thanks for your help,

Sylvain