code: @Override
    public void eSet(int featureID, Object newValue)
    {
      switch (featureID)
      {
        case SimpleExpressionsPackage.IF_CONDITION__ELSEIF:
          setElseif((Boolean)newValue);
          return;
        case SimpleExpressionsPackage.IF_CONDITION__CONDITION:
          setCondition((Expression)newValue);
          return;
      }
      super.eSet(featureID, newValue);
    }
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated