docs: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case BpsimPackage.CALENDAR__VALUE:
  				return VALUE_EDEFAULT == null ? value != null : !VALUE_EDEFAULT.equals(value);
  			case BpsimPackage.CALENDAR__ID:
  				return ID_EDEFAULT == null ? id != null : !ID_EDEFAULT.equals(id);
  			case BpsimPackage.CALENDAR__NAME:
  				return NAME_EDEFAULT == null ? name != null : !NAME_EDEFAULT.equals(name);
  		}
  		return super.eIsSet(featureID);
  	}