C++设计模式之建造者模式

    void BuildRightFoot(){ m_FatMan->SetRightFoot(kFatMan); }
    Man *GetMan(){ return m_FatMan; }
 
private:
    Man *m_FatMan;
};
 
// ThisManBuilder
class ThinManBuilder : public Builder
{
public:
    ThinManBuilder(){ m_ThinMan = new Man(); }
    void BuildHead(){ m_ThinMan->SetHead(kThinMan); }
    void BuildBody(){ m_ThinMan->SetBody(kThinMan); }
    void BuildLeftHand(){ m_ThinMan->SetLeftHand(kThinMan); }
    void BuildRightHand(){ m_ThinMan->SetRightHand(kThinMan); }
    void BuildLeftFoot(){ m_ThinMan->SetLeftFoot(kThinMan); }
    void BuildRightFoot(){ m_ThinMan->SetRightFoot(kThinMan); }
    Man *GetMan(){ return m_ThinMan; }
 
private:
    Man *m_ThinMan;
};
 
// Director
class Director
{
public:
    Director(Builder *builder) { m_Builder = builder; }
    void CreateMan();
 
private:
    Builder *m_Builder;
};
 
void Director::CreateMan()
{
    m_Builder->BuildHead();
    m_Builder->BuildBody();
    m_Builder->BuildLeftHand();
    m_Builder->BuildRightHand();
    m_Builder->BuildLeftHand();
    m_Builder->BuildRightHand();
}
 
int main(int argc, char *argv[])
{
    Builder *builderObj = new FatManBuilder();
    Director directorObj(builderObj);
    directorObj.CreateMan();
    Man *manObj = builderObj->GetMan();
    if (manObj == NULL)
        return 0;
 
    manObj->ShowMan();
    delete builderObj;
    builderObj = NULL;
 
    return 0;
};

 

上面这个例子比较杂，但是也是建造者模式的应用。下面这个例子是建造者最一般，最简单的实现方法：

 

复制代码
/*
** FileName     : BuilderPattern
** Author       : Jelly Young
** Date         : 2013/11/23
** Description  : More information, please go to http://www.easck.com/> */