/// <summary>
/// Wywołuje komendę i zwraca wskazany typ
/// </summary>
/// <returns>Rezultat</returns>
public override Order Execute()
{
var order = Session.Load <Order>(orderId);
order.Waiter = new RestaurantWorker
{
Id = restaurantWorkerId
};
orderStatusService.AssignToWaiter(order);
Session.Update(order);
return(order);
}