设计模式之---代理模式实例

 1 class Order_AbstractClass 
 2 {
 3     public:
 4   string getProductName();
 5 void setProductName(string productName,string consumer);
 6     int getOrderID();
 7     void setOrderID(int orderID, string consumer);
 8     string getOrderCreater ();
 9     void setOrderCreater (string orderCreater, string consumer);
10 }
11 class Order: Order_AbstractClass {
12 private:
13 string productName;
14      int orderID;
15      string orderCreater;
16 public :
17 Order(string productName,int orderID,string orderCreater)
18     {
19         productName=productName;
20         orderID = orderID;
21         orderCreater = orderCreater;
22     }
23     int getOrderID () {
24         return orderID;
25     }
26      string getOrderCreater() {
27         return orderCreater;
28     }
29     string getProductName() {
30         return productName;
31     }
32 void setOrderID(int orderID, string consumer) 
33 {
34         OrderID = orderID;
35     }
36     void setOrderCreater (string orderCreater, string consumer) {
37         orderCreater=orderCreater;
38     }
39      void setProductName(string productName, string consumer) {
40         productName=productName;
41     }
42 }
43 class OrderProxy: Order_AbstractClass {
44     private:
45  Order order;
46     public:
47 OrderProxy(Order realorder) {
48         order=realorder;
49     }
50        int getOrderID() {
51         return order.getOrderID ();
52     }
53        string getOrderCreater() {
54         return order.getOrderCreater ();
55     }
56        string getProductName() {
57         return order.getProductName();
58     }
59 void setOrderID(int orderID, string consumer) {
60     if(consumer!=NULL && consumer.equals(this.getOrderCreater())){
61             order.setOrderID(orderID, consumer);
62 cout<<"恭喜您修改成功"<<endl;
63         }else{
64             cout<<"您无权修改订单号"<<endl;
65         }}
66     void setOrderCreater(string orderCreater, string consumer) {
67     if(consumer!=null && consumer.equals(this.getOrderCreater ())){
68             order.setOrderCreater(orderCreater, consumer);
69 cout<<"恭喜您修改成功"<<endl; 
70         }else{
71             cout<<"您无权修改订单创建者"<<endl;
72         }}
73     void setProductName(string productName, string consumer) {
74     if(consumer!=null && consumer.equals(this.getOrderCreater ())){
75         order.setProductName(productName, consumer);
76 cout<<"恭喜您修改成功"<<endl;
77         }else{
78             cout<<"您无权修改产品名称"<<endl;
79         }}
80 void main(){
81     Order_AbstractClass order=new OrderProxy(new Order("C++设计模式",2,"小四"));
82         order.setOrderID(123, "小五");
83         order.setOrderID(123, "小四");
84 order.setProductName("C++编程", "小四");
85 order.setOrderCreater("小七", "小六");
86 }