%\begin{tomcode3}
\begin{codesource}[label=code:v1flattening,caption=Version 1 : Implémentation de la transformation d'aplatissement de hiérarchie de classes en Java.]
public static VirtualRoot v1_processClass(VirtualRoot root) {
  org.eclipse.emf.common.util.EList<Class> newChildren =
    new org.eclipse.emf.common.util.BasicEList<Class>();
  for(Class cl : root.getChildren()) {
    if(cl.getSubclass().isEmpty()) {
      newChildren.add(flattening(cl));
    }
  }
  VirtualRoot result = (VirtualRoot) ClassflatteningFactory.eINSTANCE.create(
                          (EClass)ClassflatteningPackage.eINSTANCE.getEClassifier("VirtualRoot"));
  result.eSet(result.eClass().getEStructuralFeature("children"), newChildren);
  return result;
}

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());
    Class result = (Class)ClassflatteningFactory.eINSTANCE.
                      create((EClass)ClassflatteningPackage.eINSTANCE.getEClassifier("Class"));
    result.eSet(result.eClass().getEStructuralFeature("name"), flattenedParent.getName()+toFlatten.getName());
    result.eSet(result.eClass().getEStructuralFeature("attributes"), head);
    result.eSet(result.eClass().getEStructuralFeature("superclass"), flattenedParent.getSuperclass());
    result.eSet(result.eClass().getEStructuralFeature("subclass"), (new BasicEList<Class>()) );
    result.eSet(result.eClass().getEStructuralFeature("root"), virtR);
    return result;
  }
}
...
public static void main(String[] args) {
  ...
  VirtualRoot translator.virtR = v1_processClass(source_root);
  ...
}
\end{codesource}
%\end{tomcode3}