static void Main(string[] args)
{
var supermarket = new SuperMarket();
supermarket.AddProduct("Milk", new Milk(100));
supermarket.AddProduct("Bread",new Bread(250));
var currentMilk = supermarket.GetProduct("Milk");
var currentBread = supermarket.GetProduct("Bread");
var newMilk = (Milk) currentMilk.Clone();
newMilk.Price=120;
var newBread = (Bread) currentBread.Clone();
newBread.Price = 245;
Console.WriteLine(string.Format("Milk: new ={0} ,old ={1} ",newMilk.Price,currentMilk.Price));
Console.WriteLine(string.Format("Bread: new ={0} ,old ={1} ",newBread.Price,currentBread.Price));
Console.Read();
}
static void Main(string[] args)
{
var supermarket = new SuperMarket();
supermarket.AddProduct("Milk", new Milk(100));
supermarket.AddProduct("Bread", new Bread(250));
var currentMilk = supermarket.GetProduct("Milk");
var currentBread = supermarket.GetProduct("Bread");
var newMilk = (Milk)currentMilk.Clone();
newMilk.Price = 120;
var newBread = (Bread)currentBread.Clone();
newBread.Price = 245;
Console.WriteLine(string.Format("Milk: new ={0} ,old ={1} ", newMilk.Price, currentMilk.Price));
Console.WriteLine(string.Format("Bread: new ={0} ,old ={1} ", newBread.Price, currentBread.Price));
Console.Read();
}
private static void Prototype()
{
// Language agnostic solution
var supermarket = new SuperMarket();
supermarket.AddProduct("Milk", new Milk(0.89m));
supermarket.AddProduct("Bread", new Bread(1.10m));
decimal sourcePrice;
decimal currentPrice;
var clonedMilk = (Milk)supermarket.GetProduct("Milk");
clonedMilk.Price = 1;
sourcePrice = supermarket.GetProduct("Milk").Price;
currentPrice = clonedMilk.Price;
Console.WriteLine(String.Format("{0} | {1}", sourcePrice, currentPrice));
var clonedBread = (Bread)supermarket.GetProduct("Bread");
clonedBread.Price = 2;
sourcePrice = supermarket.GetProduct("Bread").Price;
currentPrice = clonedBread.Price;
Console.WriteLine(String.Format("{0} | {1}", sourcePrice, currentPrice));
// C# specific solution using the ICloneable interface
var cloneableProduct = new CloneableProduct(100);
var clonedProduct = (CloneableProduct)cloneableProduct.Clone();
clonedProduct.Price = 200;
sourcePrice = cloneableProduct.Price;
currentPrice = clonedProduct.Price;
Console.WriteLine(String.Format("{0} | {1}", sourcePrice, currentPrice));
Console.ReadKey();
}
