Proxy

#include <iostream>

using namespace std;



class Product
{
public:
    virtual ~Product() {}
    virtual void Action()=0;
};


class ConcreteProduct : public Product
{
public:
    ConcreteProduct() {}
    ~ConcreteProduct() {}

    void Action()
    {
        cout<<"ConcreteProduct::Action"<<endl;
    }
};



class SaleProxy : public Product
{
public:
    SaleProxy()
    {
        m_pProduct = new ConcreteProduct;
    }
    ~SaleProxy()
    {
        delete m_pProduct;
        m_pProduct = NULL;
    }

    void Action()
    {
        cout<<"SaleProxy::";
        m_pProduct->Action();
    }

private:
    Product* m_pProduct;
};



int main(int argc, char *argv[])
{
    ConcreteProduct realProduct;
    realProduct.Action();

    SaleProxy proxy;
    proxy.Action();

    
    return 0;
}