code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.OBJECT_STRUCTURED_FIELD_EXTENT__SF_EXT:
  				return SF_EXT_EDEFAULT == null ? sfExt != null : !SF_EXT_EDEFAULT.equals(sfExt);
  			case AfplibPackage.OBJECT_STRUCTURED_FIELD_EXTENT__SF_EXT_HI:
  				return SF_EXT_HI_EDEFAULT == null ? sfExtHi != null : !SF_EXT_HI_EDEFAULT.equals(sfExtHi);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated