private static void Main(string[] args)
{
//É POSSIVEL PEDIR LOGO AO REALSUBJECT
var client = new Client();
Console.WriteLine("Client: Executing the client code with a real subject");
var realSubject = new RealSubject();
client.ClientCode(realSubject);
Console.WriteLine();
//UTILIZANDO A PROXY PARA CONTROLAR O ACESSO
Console.WriteLine("Client: Executing the same client code with the proxy");
var proxy = new Proxy(realSubject);
client.ClientCode(proxy);
Console.WriteLine();
//UTILIZANDO A PROXY PARA CONTROLAR O ACESSO DE OUTRAS SUBCLASSES O SUBJECT
var diffSubject = new DifferentSubject();
Console.WriteLine("Client: Executing the same client code with the proxy");
proxy = new Proxy(diffSubject);
client.ClientCode(proxy);
Console.Read();
}
public override void Operation()
{
if (_realSubject == null)
_realSubject = new RealSubject();
_realSubject.Operation();
}
public void Request()
{
if (RealSubject == null)
{
RealSubject = new RealSubject(this.Data); // Here you could get the data from the database, for example.
}
RealSubject.Request();
}
public override string Request()
{
if (realSubject == null)
{
realSubject = new RealSubject();
}
return(realSubject.Request());
}
public override void Request()
{
if (_realSubject == null)
{
_realSubject = new RealSubject();
}
_realSubject.Request();
}
public override void Request()
{
if (realsubject == null)
{
realsubject = new RealSubject();
}
realsubject.Request();
}
public override void Request()
{
// Use 'lazy initialization'
if (_realSubject == null) {
_realSubject = new RealSubject();
}
_realSubject.Request();
}
public override void Requisicao()
{
if (this.realSubject == null)
{
this.realSubject = new RealSubject();
}
this.realSubject.Requisicao();
}
public override void Operation()
{
if (_realSubject == null)
{
_realSubject = new RealSubject();
}
_realSubject.Operation();
}
public void DoOperation()
{
if (realSubject == null)
{
realSubject = new RealSubject();
}
realSubject.DoOperation();
}
public override void Study()
{
if (real == null)
{
real = new RealSubject();
}
Console.WriteLine("我是待你学习");
real.Study();
}
public void DoOperation()
{
if (realSubject == null)
{
realSubject = new RealSubject();
}
realSubject.DoOperation();
}
public override void Request()
{
if (realSubject == null)
{
realSubject = new RealSubject();
}
realSubject.Request();
}
public override void Request()
{
//use lazy initialization
if (_realSubject == null)
{
_realSubject = new RealSubject();
}
_realSubject.Request();
}
public void RequestPassword()
{
if (CheckAccess())
{
realSubject = new RealSubject();
realSubject.RequestPassword();
LogAccess();
}
}
// The most common applications of the Proxy pattern are lazy loading,
// caching, controlling the access, logging, etc. A Proxy can perform
// one of these things and then, depending on the result, pass the
// execution to the same method in a linked RealSubject object.
public void Request()
{
if (this.CheckAccess())
{
this._realSubject = new RealSubject();
this._realSubject.Request();
this.LogAccess();
}
}
public void Request()
{
if (CheckAccess())
{
_realSubject = new RealSubject();
_realSubject.Request();
LogAccess();
}
}
public override void Request()
{
if (_realSubject == null) // lazy init
{
_realSubject = new RealSubject();
}
_realSubject.Request();
}
static void Main(string[] args)
{
Console.WriteLine($"Executing the method with a real subject:");
RealSubject realSubject = new RealSubject();
realSubject.RequestPassword();
Console.WriteLine($"\nExecuting the method with a proxy:");
Proxy proxy = new Proxy(realSubject);
proxy.RequestPassword();
}
public void DoHeavyLifting()
{
if (Auth(password))
{
realThing = new RealSubject();
realThing.DoHeavyLifting();
}
else
{
Console.WriteLine("Did not authenticate - controlling when a costly object needs to be instantiated and initialized");
}
}
static void Main(string[] args)
{
Client client = new Client();
Console.WriteLine("Client: Executing the client code with a real subject:");
RealSubject realSubject = new RealSubject();
client.ClientCode(realSubject);
Console.WriteLine();
Console.WriteLine("Client: Executing the same client code with a proxy:");
Pattern.Proxy proxy = new Pattern.Proxy(realSubject);
client.ClientCode(proxy);
}
static void Main(string[] args)
{
Subject subject = new RealSubject();
Subject proxy;
Console.WriteLine("Role: Guest");
proxy = new ProxySubject(subject, Role.guest);
Access(proxy);
Console.WriteLine("\nRole: User");
proxy = new ProxySubject(subject, Role.user);
Access(proxy);
Console.WriteLine("\nRole: Administrator");
proxy = new ProxySubject(subject, Role.administrator);
Access(proxy);
Console.ReadKey();
}
static void Main(string[] args)
{
// canonical
var subject = new RealSubject();
subject.Request();
var proxy = new Proxy.Canonical.Proxy();
proxy.Request();
// live
Console.WriteLine();
var image = new ProxyImage("C://temp.jpq");
// will be loaded lazyly
image.Display();
// wont be loaded 2nd time
image.Display();
}
static void Main()
{
Subject subject = new RealSubject();
Subject proxy;
Console.WriteLine("Owner work:");
proxy = new Proxy(subject, "Owner");
TryAccess(proxy, "John");
Console.WriteLine("Administrator work:");
proxy = new Proxy(subject, "Administrator");
TryAccess(proxy, "Mark");
Console.WriteLine("Manager work:");
proxy = new Proxy(subject, "Manager");
TryAccess(proxy, "Lola");
Console.WriteLine("User work:");
proxy = new Proxy(subject, "User");
TryAccess(proxy, "Gigi");
// Delay.
Console.ReadKey();
}
public override void Request()
{
//实例一个真实用户
realSubject = new RealSubject();
realSubject.Request();//调用真实用户的方法
}
public Proxy(RealSubject realSubject)
{
_realSubject = realSubject;
}
public Proxy(RealSubject realSubject)
{
this._realSubject = realSubject;
}
public Proxy(RealSubject realsubject)
{
realsubject = realSubject;
}
public void Send()
{
this._realSubject = new RealSubject();
this._realSubject.Send();
}
