code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case BpsimPackage.USER_DISTRIBUTION_TYPE__GROUP:
  				return group != null && !group.isEmpty();
  			case BpsimPackage.USER_DISTRIBUTION_TYPE__USER_DISTRIBUTION_DATA_POINT:
  				return !getUserDistributionDataPoint().isEmpty();
  			case BpsimPackage.USER_DISTRIBUTION_TYPE__DISCRETE:
  				return isSetDiscrete();
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated