设计模式学习-----抽象工厂模式
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灯火互联
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 | GOOD：定义了一个创建一系列相关或相互依赖的接口，而无需指定它们的具体类。 用于交换产品系列，如ACCESS->SQLSERVER； 产品的具体类名被具体工厂的实现分离 [html] #include <string> #include <iostream> #include <vector> using namespace std; //用户抽象接口 class IUser { public : virtual void GetUser()=0; virtual void InsertUser()=0; }; //部门抽象接口 class IDepartment { public: virtual void GetDepartment()=0; virtual void InsertDepartment()=0; }; //ACCESS用户 class CAccessUser : public IUser { public: virtual void GetUser() { cout<<"Access GetUser"<<endl; } virtual void InsertUser() { cout<<"Access InsertUser"<<endl; } }; //ACCESS部门 class CAccessDepartment : public IDepartment { public: virtual void GetDepartment() { cout<<"Access GetDepartment"<<endl; } virtual void InsertDepartment() { cout<<"Access InsertDepartment"<<endl; } }; //SQL用户 class CSqlUser : public IUser { public: virtual void GetUser() { cout<<"Sql User"<<endl; } virtual void InsertUser() { cout<<"Sql User"<<endl; } }; //SQL部门类 class CSqlDepartment: public IDepartment { public: virtual void GetDepartment() { cout<<"sql getDepartment"<<endl; } virtual void InsertDepartment() { cout<<"sql insertdepartment"<<endl; } }; //抽象工厂 class IFactory { public: virtual IUser* CreateUser()=0; virtual IDepartment* CreateDepartment()=0; }; //ACCESS工厂 class AccessFactory : public IFactory { public: virtual IUser* CreateUser() { return new CAccessUser(); } virtual IDepartment* CreateDepartment() { return new CAccessDepartment(); } }; //SQL工厂 class SqlFactory : public IFactory { public: virtual IUser* CreateUser() { return new CSqlUser(); } virtual IDepartment* CreateDepartment() { return new CSqlDepartment(); } }; //客户端： int main() { IFactory* factory= new SqlFactory(); IUser* user=factory->CreateUser(); IDepartment* depart = factory->CreateDepartment(); user->GetUser(); depart->GetDepartment(); return 0; } | |
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