//Proxy.h
#ifndef _PROXY_H_ 
#define _PROXY_H_

class Subject 
{ 
public: 
	virtual ~Subject();
    virtual void Request() = 0;
protected: 
	Subject();
private:
};

class ConcreteSubject:public Subject 
{ 
public: 
	ConcreteSubject();
    ~ConcreteSubject();
    void Request();
protected:
private:
};

class Proxy 
{ 
public: 
	Proxy();
    Proxy(Subject* sub);
    ~Proxy();
    void Request();
	protected: 
	private: 
		Subject* _sub; 
};
#endif //~_PROXY_H_