Adapter 模式的两种类别：类模式 和 对象模式。
类模式的 Adapter 实现：
//Adapter.h
#ifndef _ADAPTER_H_
#define _ADAPTER_H_
class Target
{
public:
Target();
virtual ~Target();
virtual void Request();
protected:
private:
};
class Adaptee
{
public:
Adaptee();
~Adaptee();
void SpecificRequest();
protected:
private:
};
class Adapter:public Target,private Adaptee
{
public:
Adapter();
~Adapter();
void Request();
protected:
private:
};
#endif //~_ADAPTER_H_
//Adapter.cpp
#include "Adapter.h"
#include <iostream>
Target::Target()
{
}
Target::~Target()
{
}
void Target::Request()
{
std::cout<<"Target::Request"<<std::endl;
}
Adaptee::Adaptee()
{
}
Adaptee::~Adaptee()
{
}
void Adaptee::SpecificRequest()
{
std::cout<<"Adaptee::SpecificRequest"<<std::endl;
}
Adapter::Adapter()
{
}
Adapter::~Adapter()
{
}
void Adapter::Request()
{
this->SpecificRequest();
}
对象模式的 Adapter 实现：
//Adapter.h
#ifndef _ADAPTER_H_
#define _ADAPTER_H_
class Target
{
public:
Target();
virtual ~Target();
virtual void Request();
protected:
private:
};
class Adaptee
{
public:
Adaptee();
~Adaptee();
void SpecificRequest();
protected:
private:
};
class Adapter:public Target
{
public:
Adapter(Adaptee* ade);
~Adapter();
void Request();
protected:
private:
Adaptee* _ade;
};
#endif //~_ADAPTER_H_
//Adapter.cpp
#include "Adapter.h"
#include <iostream>
Target::Target()
{
}
Target::~Target()
{
}
void Target::Request()
{
std::cout<<"Target::Request"<<std::endl;
}
Adaptee::Adaptee()
{
}
Adaptee::~Adaptee()
{
}
void Adaptee::SpecificRequest()
{
std::cout<<"Adaptee::SpecificRequest"<<std::endl;
}
Adapter::Adapter(Adaptee* ade)
{
this->_ade = ade;
}
Adapter::~Adapter()
{
}
void Adapter::Request()
{
_ade->SpecificRequest();
}
对象模式的使用
//main.cpp
#include "Adapter.h"
#include <iostream>
using namespace std;
int main(int argc,char* argv[])
{
Adaptee* ade = new Adaptee;
Target* adt = new Adapter(ade);
adt->Request();
return 0;
}