code: public static Ifc4Factory init() {
  		try {
  			Ifc4Factory theIfc4Factory = (Ifc4Factory) EPackage.Registry.INSTANCE.getEFactory(Ifc4Package.eNS_URI);
  			if (theIfc4Factory != null) {
  				return theIfc4Factory;
  			}
  		} catch (Exception exception) {
  			EcorePlugin.INSTANCE.log(exception);
  		}
  		return new Ifc4FactoryImpl();
  	}
docs: Creates the default factory implementation.
  <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated