code: @Override
  	public EEnum getIfcSurfaceSide() {
  		if (ifcSurfaceSideEEnum == null) {
  			ifcSurfaceSideEEnum = (EEnum) EPackage.Registry.INSTANCE.getEPackage(Ifc4Package.eNS_URI).getEClassifiers()
  					.get(1079);
  		}
  		return ifcSurfaceSideEEnum;
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated