Abstract
|
|---NodeA - gmf.link( source="sourceA", target="targetA")
|      |---sourceA
|      |---targetA
|
|---NodeB - gmf.link( source="sourceB", target="targetB")
       |---sourceB
       |---targetB

canvas
  ->container
        ->container
              ->container
                    ->container (this is no longer created in any file as container, but their contained nodes are in Graph and Tool)
                          ->node.

@gmf(foo="bar")
@namespace(uri="http://metamodel/1.0", prefix="metamodel")
package metamodel;

@gmf.diagram(foo="bar")
class TransformationModel {
  val AbstractSource[*] source;
}

@gmf.node(foo="bar")
abstract class Layer extends AbstractSource {
  attr String description;
  
  @gmf.link(source.decoration="arrow")
  ref AbstractSource[+] previousSource;
  attr String outputFilePathURI;

  @gmf.compartment(layout ="free")
  val Rule[*] hasRule;
}

@gmf.node(label="className")
class ApplyClass extends AbstractClass {

  @gmf.containment(layout="free")
  val ApplyAttribute[*] attribute;
}

@gmf.node( color="255,255,163")
class ApplyModel {

  @gmf.compartment(layout ="free")
  val ApplyClass[*] ~class;

  val ApplyAssociation[*] association;
}

//@gmf.link(source="source", target="target")
class ApplyAssociation extends Association {
  ref ApplyClass[1] source;
  ref ApplyClass[1] target;
}

@gmf.node(foo="bar")
abstract class AbstractClass {
  attr String description;
  attr String className;
  attr String packageName;
}

//@gmf.link(source="", target="")
abstract class Association {
  attr String associationName;
}

@gmf.node(label="attributeName")
class ApplyAttribute {
  attr String[1] description;
  attr String attributeName;
}

@gmf.node(foo="bar")
abstract class AbstractSource {
}

@gmf.node(label="description")
class Rule {
  attr String description;

  @gmf.compartment(layout ="list")
  val ApplyModel[1] apply;

}

@gmf.node(label="description", color="0,0,255")
class Sequential extends Layer {
}

Internal error: java.lang.ClassCastException: org.eclipse.emf.ecore.impl.EEnumLiteralImpl cannot be cast to org.eclipse.gmf.gmfgraph.LineKind

@gmf.node(label="name", color="255,255,163")
class ApplyModel {
attr String name; // Added - all nodes must have a label
@gmf.compartment(layout ="free")
val ApplyClass[*] ~class;

@gmf.compartment(layout ="free")
val ApplyAssociation[*] association;
}