/**
* Converts this Object to a dynamic object with a new type that is a subtype of the current type,
* preserving any existing property values.
*
* @param newEClass the new type for this Object
* @throws IllegalArgumentException if newEClass is not a subtype of this Object's current type
* @see org.eclipse.emf.ecore.InternalEObject#eSetClass(org.eclipse.emf.ecore.EClass)
*/
public void narrow(EClass newEClass) throws IllegalArgumentException {
if (!eClass().equals(EcorePackage.eINSTANCE.getEObject())
&& !eClass().isSuperTypeOf(newEClass)) {
throw new IllegalArgumentException(
"The class "
+ newEClass.getName()
+ " is not a subtype of the Object's current type "
+ eClass().getName());
}
EPropertiesHolder props = eProperties();
if (props.getEClass() != null && props.hasSettings()) {
int staticSize = eStaticFeatureCount();
int oldSize = eClass().getEAllStructuralFeatures().size() - staticSize;
if (oldSize > 0) {
int newSize = newEClass.getEAllStructuralFeatures().size() - staticSize;
if (newSize > oldSize) {
List oldValues = new ArrayList(oldSize);
for (int i = 0; i < oldSize; i++) {
oldValues.add(props.dynamicGet(i));
}
props.allocateSettings(newSize);
for (int i = 0; i < oldSize; i++) {
props.dynamicSet(i, oldValues.get(i));
}
}
}
}
eSetClass(newEClass);
}
public EObject getStaticInstance() {
if (null == staticObj) {
EClass eClass = eClass();
if (eClass.isAbstract()) {
throw new IllegalArgumentException(
"Cannot create an instance of the abstract type: " + eClass.getName());
}
staticObj = eClass.getEPackage().getEFactoryInstance().create(eClass);
// System.out.println("New static instance: " + staticObj.hashCode() + " of type "
// + eClass.getName());
// Copy over all property values
EPropertiesHolder props = eProperties();
if (props.getEClass() != null && props.hasSettings()) {
List features = eClass.getEAllStructuralFeatures();
for (Iterator itr = features.iterator(); itr.hasNext(); ) {
EStructuralFeature feature = (EStructuralFeature) itr.next();
staticObj.eSet(feature, eGet(feature));
// System.out.println(" F: " + feature.getName());
}
}
// Update all external references
for (Iterator itr = actions.iterator(); itr.hasNext(); ) {
Action action = (Action) itr.next();
action.doIt(staticObj);
}
// Update containing resource
// List contents = eResource().getContents();
// contents.remove(this);
// contents.add(staticObj);
}
return staticObj;
}
