设计模式[12]-Adapter

Type: Structural

Adapter: 将一个类的接口转换成clients期望的另一个接口。类不会因为接口不兼容而无法一起工作。 实现方式有两种，继承和委让。这里使用的是委让。

#include <iostream>
using namespace std;  

class Adapter
{
public:
    virtual void operation()=0;
};  

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

class ConcreteAdapter: public Adapter
{
public:
    ConcreteAdapter(Adaptee* pAdaptee):m_pAdaptee(pAdaptee){};
    void operation()
    {
        cout<<"ConcreteAdapter operation"<<endl;
        m_pAdaptee->adaptedOperation();
    };
private:
    Adaptee* m_pAdaptee;
};  

int main()
{
    Adaptee *pAdaptee = new Adaptee;
    Adapter *pTarget = new ConcreteAdapter(pAdaptee);
    pTarget->operation();  

    system("pause");  

    return 0;
}