public ConcreteObserver(ConcreteSubject sub, string name)
{
m_sub = sub;
m_name = name;
}
static void Main(string[] args)
{
#if _DECORATOR_PATTERN
// test Decorator Design Patterns
ConcreteComponent concrete = new ConcreteComponent();
ConcreteDecoratorA concreteA = new ConcreteDecoratorA();
ConcreateDecoratorB concreteB = new ConcreateDecoratorB();
// link decorators
concreteA.SetComponent(concrete);
concreteB.SetComponent(concreteA);
concreteB.Operation();
// wait for user's input
Console.ReadKey();
Book book = new Book("Google", "Do not be evil", 10);
book.Display();
Viedo viedo = new Viedo("Youtube", "How to build apps", 20, 90);
viedo.Display();
// Make viedo borrowable, then borrow and display
Borrowable borrowViedo = new Borrowable(viedo);
borrowViedo.BorrowItem("John");
borrowViedo.BorrowItem("Smith");
borrowViedo.Display();
Console.ReadKey();
#endif
#if _ADAPTER_PATTERN
Target target = new Adapter();
target.Request();
Compound compound = new Compound("Unknown");
compound.Display();
ComplexCompound complex = new ComplexCompound("h2o");
complex.Display();
Console.ReadKey();
#endif
#if _BRIDGE_PATTERN
Abstraction ab = new RefinedAbstraction();
ab.impl = new ConcreteImplementorA();
ab.Operation();
ab.impl = new ConcreteImplementorB();
ab.Operation();
Customers cus = new Customers("root");
cus.data = new CustomerData();
cus.Show();
cus.Next();
cus.Show();
cus.Next();
cus.Show();
cus.Add("Another Customer");
cus.ShowAll();
Console.ReadKey();
#endif
#if _COMPOSITE_PATTERN
Composite root = new Composite("root");
root.Add(new Leaf("l Leaf"));
root.Add(new Leaf("r Leaf"));
Composite comp = new Composite("Compisite X");
comp.Add(new Leaf("Composite X L Leaf"));
comp.Add(new Leaf("Composite X R Leaf"));
root.Add(comp);
root.Add(new Leaf("m Leaf"));
Leaf leaf = new Leaf("Leaf D");
root.Add(leaf);
root.Remove(leaf);
root.Display(1);
Console.ReadKey();
#endif
#if _FACADE_PATTERN
Facade facade = new Facade();
facade.MethodA();
facade.MethodB();
Console.ReadKey();
#endif
#if _FLY_WEIGHT_PATTERN
int extrinsic_state = 22;
FlyweightFactory factory = new FlyweightFactory();
Flyweight fx = factory.GetFlyWeight("X");
fx.Operation(--extrinsic_state);
Flyweight fy = factory.GetFlyWeight("Y");
fy.Operation(--extrinsic_state);
UnsharedConcreteFlyweight fu = new UnsharedConcreteFlyweight();
fu.Operation(--extrinsic_state);
Console.ReadKey();
#endif
#if _PROXY_PATTERN
Proxy proxy = new Proxy();
proxy.Request();
MathProxy mathProxy = new MathProxy();
mathProxy.Add(4, 2);
Console.ReadKey();
#endif
#if _FACTORY_PATTERN
Creator[] creators = new Creator[2];
creators[0] = new ConcreteCreatorA();
creators[1] = new ConcreateCreatorB();
foreach (Creator crea in creators)
{
Product product = crea.FactoryMethod();
Console.WriteLine("Create {0}", product.GetType().Name);
}
Document[] docs = new Document[2];
docs[0] = new Resume();
docs[1] = new Report();
foreach (Document document in docs)
{
Console.WriteLine("\n" + document.GetType().Name + "----");
foreach (Page page in document.pages)
{
Console.WriteLine("Page:" + page.GetType().Name);
}
}
Console.ReadKey();
#endif
#if _ITERATOR_PATTERN
ConcreteAggregate agg = new ConcreteAggregate();
agg[0] = "Item0";
agg[1] = "Item1";
ConcreteIterator iter = new ConcreteIterator(agg);
object item = iter.First();
while (item != null)
{
Console.WriteLine(item);
item = iter.Next();
}
Console.ReadKey();
#endif
#if _OBSERVER_PATTERN
ConcreteSubject sub = new ConcreteSubject();
sub.Attach(new ConcreteObserver(sub, "XXX"));
sub.Attach(new ConcreteObserver(sub, "YYY"));
sub.state = "AAA";
sub.Notify();
IBM ibm = new IBM(120.00);
ibm.Attach(new Investor("Chen", ibm));
ibm.Attach(new Investor("Chen1", ibm));
ibm.stockPrice = 121.00;
Console.ReadKey();
#endif
}