[设计模式学习C++实现]---Facade模式

这个模式很简单，就是把好几类实现的功能用一个类整合起来，这样用户就只需要调用一个类中的这个方法就可以实现全部的过程。

实现代码（代码来自k_eckel）：

 1 //Subsystem1.h
 2 class Subsystem1
 3 {
 4 public:
 5 Subsystem1();
 6 ~Subsystem1();
 7 void Operation();
 8 protected:
 9 private:
10 };
11 
12 //Subsystem1.cpp
13 #include <iostream>
14 using namespace std;
15 Subsystem1::Subsystem1()
16 {
17 }
18 Subsystem1::~Subsystem1()
19 {
20 }
21 void Subsystem1::Operation()
22 {
23 cout<<"Subsystem1 operation.."<<endl;
24 }
Subsystem1
 1 //Subsystem2.h
 2 class Subsystem2
 3 {
 4 public:
 5 Subsystem2();
 6 ~Subsystem2();
 7 void Operation();
 8 protected:
 9 private:
10 };
11 
12 //Subsystem2.cpp
13 Subsystem2::Subsystem2()
14 {
15 }
16 Subsystem2::~Subsystem2()
17 {
18 }
19 void Subsystem2::Operation()
20 {
21 cout<<"Subsystem2 operation.."<<endl;
22 }
Subsystem2
 1 //Facade.h
 2 class Facade
 3 {
 4 public:
 5 Facade();
 6 ~Facade();
 7 void OperationWrapper();
 8 protected:
 9 private:
10 Subsystem1* _subs1;
11 Subsystem2* _subs2;
12 };
13 
14 //Facade.cpp
15 Facade::Facade()
16 {
17 this->_subs1 = new Subsystem1();
18 this->_subs2 = new Subsystem2();
19 }
20 Facade::~Facade()
21 {
22 delete _subs1;
23 delete _subs2;
24 }
25 void Facade::OperationWrapper()
26 {
27 this->_subs1->Operation();
28 this->_subs2->Operation();
29 }
Facade
 1 //main.cpp
 2 #include "Facade.h"
 3 #include <iostream>
 4 using namespace std;
 5 int main(int argc,char* argv[])
 6 {
 7 Facade* f = new Facade();
 8 f->OperationWrapper();
 9 return 0;
10 }
main

 

posted @ 2013-05-28 11:12  mengmee  阅读(150)  评论(0)  编辑  收藏  举报