code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case XtextPackage.ABSTRACT_ELEMENT__CARDINALITY:
  				return CARDINALITY_EDEFAULT == null ? cardinality != null : !CARDINALITY_EDEFAULT.equals(cardinality);
  			case XtextPackage.ABSTRACT_ELEMENT__PREDICATED:
  				return predicated != PREDICATED_EDEFAULT;
  			case XtextPackage.ABSTRACT_ELEMENT__FIRST_SET_PREDICATED:
  				return firstSetPredicated != FIRST_SET_PREDICATED_EDEFAULT;
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated