Adapter (C++实现 )

// Adapter.cpp : 定义控制台应用程序的入口点。

//

#include "stdafx.h"

#include <iostream>

using namespace std;

class Target

{

public :

 Target() {}

 virtual ~Target(){}

 virtual  void Request()=0;

};

class Adaptee

{

public:

 Adaptee(){}

 virtual ~Adaptee(){}

 void SpecialRequset()

 {

  cout<<"SpecialRequset of Adaptee"<<endl;

 }

};

//

class Adapter_class:private Adaptee,public Target

{

  public:

   Adapter_class()

   {

    cout<<"Construction of Adapter_class"<<endl;

   }

   virtual ~Adapter_class()

   {

     cout<<"Destruction of Adapter_class"<<endl;

   }

   void Request()

   {

     SpecialRequset();

   }

};

//

class Adpater_object:public Target

{

public:

 Adpater_object(Adaptee* m_p):m_pAdaptee(m_p)

 {

  cout<<"Construction of Adapter_objetc"<<endl;

 }

 virtual ~Adpater_object()

 {

  delete m_pAdaptee;

  m_pAdaptee=NULL;

  cout<<"Destruction of Adapter_class"<<endl;

 }

 void Request()

 {

  m_pAdaptee->SpecialRequset();

 }

private:

 Adaptee* m_pAdaptee;

};

int _tmain(int argc, _TCHAR* argv[])

{   //Client1

 Target *t=new Adapter_class();

 t->Request();

 delete t;

 //Client2

 Adaptee *p=new Adaptee();

 Target *t1=new Adpater_object(p);

 t1->Request();

 return 0;

}