/**
  *
  * <!-- begin-user-doc -->
  * <!-- end-user-doc -->
  *
  * @generated
  */
 @Override
 public void eUnset(int featureID) {
   switch (featureID) {
     case ProtocolPackage.FROM__EVENT_SOURCE:
       setEventSource((EventSource) null);
       return;
   }
   super.eUnset(featureID);
 }