设计模式学习-----抽象工厂模式

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

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#include
#include
#include
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"< }
virtual void InsertUser()
{
cout<<"Access InsertUser"< }
};

//ACCESS部门
class CAccessDepartment : public IDepartment
{
public:
virtual void GetDepartment()
{
cout<<"Access GetDepartment"< }
virtual void InsertDepartment()
{
cout<<"Access InsertDepartment"< }
};

//SQL用户
class CSqlUser : public IUser
{
public:
virtual void GetUser()
{
cout<<"Sql User"< }
virtual void InsertUser()
{
cout<<"Sql User"< }
};

//SQL部门类
class CSqlDepartment: public IDepartment
{
public:
virtual void GetDepartment()
{
cout<<"sql getDepartment"< }
virtual void InsertDepartment()
{
cout<<"sql insertdepartment"< }
};

//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;
}