code: @Override
  	public boolean eIsSet(int featureID) {
  		switch (featureID) {
  			case AfplibPackage.TILE_SET_COLOR__CSPACE:
  				return CSPACE_EDEFAULT == null ? cspace != null : !CSPACE_EDEFAULT.equals(cspace);
  			case AfplibPackage.TILE_SET_COLOR__RESERVED:
  				return RESERVED_EDEFAULT == null ? reserved != null : !RESERVED_EDEFAULT.equals(reserved);
  			case AfplibPackage.TILE_SET_COLOR__SIZE1:
  				return SIZE1_EDEFAULT == null ? size1 != null : !SIZE1_EDEFAULT.equals(size1);
  			case AfplibPackage.TILE_SET_COLOR__SIZE2:
  				return SIZE2_EDEFAULT == null ? size2 != null : !SIZE2_EDEFAULT.equals(size2);
  			case AfplibPackage.TILE_SET_COLOR__SIZE3:
  				return SIZE3_EDEFAULT == null ? size3 != null : !SIZE3_EDEFAULT.equals(size3);
  			case AfplibPackage.TILE_SET_COLOR__SIZE4:
  				return SIZE4_EDEFAULT == null ? size4 != null : !SIZE4_EDEFAULT.equals(size4);
  			case AfplibPackage.TILE_SET_COLOR__CVAL1:
  				return CVAL1_EDEFAULT == null ? cval1 != null : !CVAL1_EDEFAULT.equals(cval1);
  			case AfplibPackage.TILE_SET_COLOR__CVAL2:
  				return CVAL2_EDEFAULT == null ? cval2 != null : !CVAL2_EDEFAULT.equals(cval2);
  			case AfplibPackage.TILE_SET_COLOR__CVAL3:
  				return CVAL3_EDEFAULT == null ? cval3 != null : !CVAL3_EDEFAULT.equals(cval3);
  			case AfplibPackage.TILE_SET_COLOR__CVAL4:
  				return CVAL4_EDEFAULT == null ? cval4 != null : !CVAL4_EDEFAULT.equals(cval4);
  		}
  		return super.eIsSet(featureID);
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated