static void Main(string[] args) { DummyProduct product = new DummyProduct(); // We have four shops wanting to keep updated price set by product owner Shop shop1 = new Shop("Shop 1"); Shop shop2 = new Shop("Shop 2"); Shop shop3 = new Shop("Shop 3"); Shop shop4 = new Shop("Shop 4"); //Attach the shops to the subscriber product.Attach(shop1); product.Attach(shop2); product.Attach(shop3); product.Attach(shop4); //changing the products price and the amount, this should update the shops automatically product.ChangePriceAndAmount(23.0f, 10); //shop2 and shop 4 are not interested in new prices so they unsubscribe product.Detach(shop2); product.Detach(shop4); //Now lets try changing the products price and amount again product.ChangePriceAndAmount(26.0f, 20); Console.Read(); }
static void Main(string[] args) { DummyProduct product = new DummyProduct(); // We have four shops wanting to keep updated price set by product owner Shop shop1 = new Shop("Shop 1"); Shop shop2 = new Shop("Shop 2"); Shop shop3 = new Shop("Shop 3"); Shop shop4 = new Shop("Shop 4"); //Lets use WAY_1 for first two shops product.Attach(shop1); product.Attach(shop2); //Lets use WAY_2 for other two shops product.Attach2(shop3); product.Attach2(shop4); //Now lets try chaging the products price, this should update the shops automatically product.ChangePrice(23.0f); //Now shop2 and shop 4 are not interested in new prices so they unsubscribe product.Detach(shop2); product.Detach2(shop4); //Now lets try changing the products price again product.ChangePrice(26.0f); Console.Read(); }