设计模式 之 《抽象工厂模式》

 

 

 

#ifndef __ABSTRACT_FACTORY_MODEL__
#define __ABSTRACT_FACTORY_MODEL__

#include <string>
#include <vector>
#include <iostream>
using namespace std;
/*
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->SQL SERVER；
产品的具体类名被具体工厂的实现分离
*/

//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(); }
};

#endif //__ABSTRACT_FACTORY_MODEL__

/*
#include "AbstractFactoryModel.h"
int _tmain(int argc, _TCHAR* argv[])
{
    IFactory* factory = new SqlFactory();
    IUser* user = factory->createUser();
    IDepartment* depart = factory->createDepartment();
    user->getUser();
    depart->getDepartment();

    return 0;
}
*/