示例#1
0
 public void DumpCars()
 {
     try
     {
         using (var scope = new TransactionScope())
         {
             using (ObjyConnection objyConnection = new ObjyConnection())
             {
                 objyConnection.Open(OpenMode.Read);
                 foreach (Car car in _Cars)
                 {
                     Console.WriteLine("Car => ID:{0}, Manufacture:{1}, Model:{2}, Year:{3} ",
                                       car.Id, car.Manufacturer, car.Model, car.Year);
                     Console.WriteLine("    Engine => Description:{0}, HorsePower:{1}",
                                       car.Engine.Description, car.Engine.HorsePower);
                     for (int i = 0; i < car.Engine.Cylinders.Length; i++)
                     {
                         Console.WriteLine("      Cylynder => ID:{0}", car.Engine.Cylinders[i].Id);
                     }
                     for (int i = 0; i < car.Wheels.Length; i++)
                     {
                         Console.WriteLine("    Wheel => ID:{0}, Location:{1}", car.Wheels[i].Id, car.Wheels[i].Location);
                     }
                 }
             }
             scope.Complete();
         }
     }
     catch (Objectivity.Db.KernelException ex)
     {
         Console.WriteLine("Exception in PersistentCarFactory() {0}", ex.FullMessage);
     }
 }
示例#2
0
        /// <summary>
        /// Had hard coded data - Needs to call database for data
        /// </summary>
        public void LoadCars()
        {
            try
            {
                using (var scope = new TransactionScope())
                {
                    //ObjyConnection connection = GetConnection();
                    using (ObjyConnection objyConnection = new ObjyConnection())
                    {
                        objyConnection.Open(OpenMode.Update);
                        // find the existing cars in the DB.
                        var foundCars = objyConnection.Federation.Scan <Car>();
                        foreach (Car carObj in foundCars)
                        {
                            _Cars.Add(carObj);
                        }
                        if (Cars.Count == 0)
                        {
                            // this can be replaced with a car factory method to construct all elements.
                            Engine engine = new Engine(null)
                            {
                                Description = "V4",
                                HorsePower  = 2500
                            };
                            AddCylinders(engine, 4);

                            Car car = new Car(null)
                            {
                                Id           = 1,
                                Manufacturer = "Honda",
                                Model        = "Accord",
                                Year         = 2017
                            };
                            car.Engine = engine;
                            AddWheels(car);
                            _Cars.Add(car);

                            car = new Car(null)
                            {
                                Id           = 2,
                                Manufacturer = "Honda",
                                Model        = "Accord",
                                Engine       = new Engine(null)
                                {
                                    Description = "V6",
                                    HorsePower  = 3500
                                },
                                Year = 2017
                            };
                            AddCylinders(car.Engine, 6);
                            AddWheels(car);
                            _Cars.Add(car);
                        }
                    }
                    scope.Complete();
                }
            }
            catch (Objectivity.Db.KernelException ex)
            {
                Console.WriteLine("Exception in PersistentCarFactory() {0}", ex.FullMessage);
            }
        }