\begin{codesource}[label=code:v3flattening,caption=Version 3 : Implémentation de la transformation d'aplatissement de hiérarchie de classes en Tom+Java avec stratégies.]
%strategy FlatteningStrat(translator:UMLClassesFlattening) extends Identity() {
  visit cfVirtualRoot {
    cfVirtualRoot(cfClassEList(_*,cl@cfClass(n,_,_,cfClassEList(),_),_*)) -> {
      EList<Class> newChildren = translator.virtR.getChildren();
      translator.virtR = `cfVirtualRoot(cfClassEList(flattening(cl),newChildren*));
    }
  }
}

public static Class flattening(Class toFlatten) {
  Class parent = toFlatten.getSuperclass();
  if(parent==null) {
    return toFlatten;
  } else {
    Class flattenedParent = flattening(parent);
    EList<Attribute> head = toFlatten.getAttributes();
    head.addAll(flattenedParent.getAttributes());
    return `cfClass(flattenedParent.getName()+toFlatten.getName(), head, 
        flattenedParent.getSuperclass(), cfClassEList(), null);
  }
}
...
public static void main(String[] args) {
  ...
  VirtualRoot translator.virtR = `cfVirtualRoot(cfClassEList()); 
  Strategy transformer = `BottomUp(FlatteningStrat(translator));
  transformer.visit(source_root, new EcoreContainmentIntrospector());
  ...
}
\end{codesource}