15_抽象工厂模式

class ConcreteFactory1 : AbstractFactory { public override AbstractProductA CreateProductA() { return new ProductA1(); } public override AbstractProductB CreateProductB() { return new ProductB1(); } }

ProductA 1

AbstractProductB

abstract class AbstractProductA { }

class ProductA1 : AbstractProductA { }

AbstractProductA

abstract class AbstractFactory { public abstract AbstractProductA CreateProductA(); public abstract AbstractProductB CreateProductB(); }

class Client { private AbstractProductA AbstractProductA; private AbstractProductB AbstractProductB; public Client(AbstractFactory factory) { AbstractProductB = factory.CreateProductB(); AbstractProductA = factory.CreateProductA(); } public void Run() { AbstractProductB.Interact(AbstractProductA); } }

Client

class ConcreteFactory2 : AbstractFactory { public override AbstractProductA CreateProductA() { return new ProductA2(); } public override AbstractProductB CreateProductB() { return new ProductB2(); } }

AbstractFactory

+CreateProductA()+CreateProductB()

ConcreteFactory 1

class ProductB2 : AbstractProductB { public override void Interact(AbstractProductA a) { Console.WriteLine(this.GetType().Name + \" interacts with \" + a.GetType().Name); } }

private static void Main(string[] args) { AbstractFactory factory1 = new ConcreteFactory1(); var client1 = new Client(factory1); client1.Run(); AbstractFactory factory2 = new ConcreteFactory2(); var client2 = new Client(factory2); client2.Run(); Console.Read(); }

abstract class AbstractProductB { public abstract void Interact(AbstractProductA a); }

ProductB 2

ProductB 1

ConcreteFactory 2

class ProductB1 : AbstractProductB { public override void Interact(AbstractProductA a) { Console.WriteLine(this.GetType().Name + \" interacts with \" + a.GetType().Name); } }

ProductA 2

class ProductA2 : AbstractProductA { }