Abstract_Factory
7227 ワード
#include <iostream>
using namespace std;
#define DESTORY_POINTER(ptr) if (ptr) { delete ptr; ptr = NULL; }
class ProductFamilyA
{
public:
virtual ~ProductFamilyA() {}
virtual void Action()=0;
protected:
ProductFamilyA() {}
};
class ProductFamilyB
{
public:
virtual ~ProductFamilyB() {}
virtual void Action()=0;
protected:
ProductFamilyB() {}
};
class Factory
{
public:
virtual ~Factory() {}
virtual ProductFamilyA* CreateProductA()=0;
virtual ProductFamilyB* CreateProductB()=0;
protected:
Factory() {}
};
class ProductA1 : public ProductFamilyA
{
public:
ProductA1() {}
void Action() { cout<<"ProductFamilyA->ProductA1::Action"<<endl; }
};
class ProductA2 : public ProductFamilyA
{
public:
ProductA2() {}
void Action() { cout<<"ProductFamilyA->ProductA2::Action"<<endl; }
};
class ProductB1 : public ProductFamilyB
{
public:
ProductB1() {}
void Action() { cout<<"ProductFamilyB->ProductB1::Action"<<endl; }
};
class ProductB2 : public ProductFamilyB
{
public:
ProductB2() {}
void Action() { cout<<"ProductFamilyB->ProductB2::Action"<<endl; }
};
class Factory1 : public Factory
{
public:
ProductFamilyA* CreateProductA() { return new ProductA1; }
ProductFamilyB* CreateProductB() { return new ProductB1; }
};
class Factory2 : public Factory
{
public:
ProductFamilyA* CreateProductA() { return new ProductA2; }
ProductFamilyB* CreateProductB() { return new ProductB2; }
};
int main(int argc, char *argv[])
{
Factory* pFactory = NULL;
ProductFamilyA* pProductFamilyA = NULL;
ProductFamilyB* pProductFamilyB = NULL;
pFactory = new Factory1;
pProductFamilyA = pFactory->CreateProductA();
pProductFamilyB = pFactory->CreateProductB();
pProductFamilyA->Action();
pProductFamilyB->Action();
DESTORY_POINTER(pFactory);
DESTORY_POINTER(pProductFamilyA);
DESTORY_POINTER(pProductFamilyB);
pFactory = new Factory2;
pProductFamilyA = pFactory->CreateProductA();
pProductFamilyB = pFactory->CreateProductB();
pProductFamilyA->Action();
pProductFamilyB->Action();
DESTORY_POINTER(pFactory);
DESTORY_POINTER(pProductFamilyA);
DESTORY_POINTER(pProductFamilyB);
return 0;
}