设计模式 - Adapter

意图：将一个类的接口转换成客户希望的另外一个接口，使得原本由于接口不兼容而不能一起工作的那些类可以一起工作。

class Target
{
public:
    Target()
    {}
    virtual ~Target()
    {}
    virtual void Request()
    {
        cout<<"Target::Request()"<<endl;
    }
};

class Adaptee
{
public:
    Adaptee()
    {}
    ~Adaptee()
    {}
    void SpecificRequest()
    {
        cout<<"Adaptee::SpecificRequest()"<<endl;
    }
};

class Adapter: public Target
{
public:
    Adapter()
    {
        this->adaptee = new Adaptee();
    }
    ~Adapter()
    {
        if(this->adaptee != NULL)
        { 
            delete this->adaptee;
        }
    }
    void Request()
    {
        adaptee->SpecificRequest();
    }

private:
    Adaptee* adaptee;
};