Mediator （C++实现）

好文章推荐： http://blog.csdn.net/roynee/archive/2009/10/05/4634197.aspx

下面是简单实现：(转载）
class Mediator;



class Colleage

{

public:

virtual ~Colleage(){};

virtual void Action()=0;

virtual void SetState(const string& sd)=0;

virtual string GetState()=0;

protected:

Colleage(){};

Colleage(Mediator mdt){this->m_mdt=mdt;};

Mediator m_mdt;

};

class ConcreteColleageA:public Colleage

{

public:

ConcreteColleageA(){};

ConcreteColleageA(Mediator mdt):Colleage(mdt){}

~ConcreteColleageA(){};

void SetState(const string& sd){m_sd=sd;}

string GetState(){return m_sd;}

void Action();

private:

string m_sd;

};class ConcreteColleageB:public Colleage

{

public:

ConcreteColleageB(){};

ConcreteColleageB(Mediator mdt):Colleage(mdt){}

~ConcreteColleageB(){};

void SetState(const string& sd){m_sd=sd;};

string GetState(){return m_sd;}

void Action();

private:

string m_sd;

};class Mediator

{

public:

virtual ~Mediator(){};

virtual void DoActionFromAtoB()=0;

virtual void DoActionFromBtoA()=0;

protected:

Mediator(){};

};class ConcreteMediator:public Mediator

{

public:

ConcreteMediator(){};

ConcreteMediator(Colleage ClA,Colleage ClB){m_ClA=ClA;m_ClB=ClB;};

~ConcreteMediator(){};

void SetConA(Colleage ClA){m_ClA=ClA;}

void SetConB(Colleage ClB){m_ClB=ClB;}

Colleage GetConA(){return m_ClA;}

Colleage GetConB(){return m_ClB;}

void DoActionFromAtoB(){m_ClB->SetState(m_ClA->GetState());}

void DoActionFromBtoA(){m_ClA->SetState(m_ClB->GetState());}

void IntroColleage(Colleage ClA,Colleage ClB)

{

m_ClA=ClA;m_ClB=ClB;

}

private:

Colleage m_ClA;

Colleage m_ClB;

};

void ConcreteColleageA::Action()

{

m_mdt->DoActionFromAtoB();

cout<<"CONB "<GetState()<\
}\\void ConcreteColleageB::Action()\
\
{\
\
m_mdt->DoActionFromBtoA();

cout<<"CONA "<GetState()<\
}\\\\\\void main()\
\
{\
\
ConcreteMediator* m=new ConcreteMediator();\
\
ConcreteColleageA* c1=new ConcreteColleageA(m);\
\
ConcreteColleageB* c2=new ConcreteColleageB(m);\
\
m->IntroColleage(c1,c2);c1->SetState("jackill");

c1->Action();

c2->SetState("rukawa");

c2->Action();

cout<\\\c1->SetState("new");

c1->Action();

c2->Action();

cout<<endl;

}

原文链接: https://www.cnblogs.com/ustc11wj/archive/2011/05/31/2610902.html

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