设计模式学习-----中介者模式

　　GOOD：用一个中介对象来封装一系列的对象交互，中介者使各对象不需要显示的相互引用，从而降低耦合；而且可以独立地改变它们之间的交互。

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#include <iostream>
#include <string>
#include <vector>
using namespace std;

class Colleague;
//中介者类
class Mediator
{
public:
    virtual void Send(string message,Colleague* col) = 0;
};
//抽象同事类
class Colleague
{
protected:
    Mediator* mediator;
public:
    Colleague(Mediator* temp)
    {
        mediator = temp;
    }
};
//同事一
class Colleague1 : public Colleague
{
public:
    Colleague1(Mediator* media) : Colleague(media){}

    void Send(string strMessage)
    {
        mediator->Send(strMessage,this);
    }

    void Notify(string strMessage)
    {
        cout<<"同事一获得了消息"<<strMessage<<endl;
    }
};

//同事二
class Colleague2 : public Colleague
{
public:
    Colleague2(Mediator* media) : Colleague(media){}

    void Send(string strMessage)
    {
        mediator->Send(strMessage,this);
    }

    void Notify(string strMessage)
    {
        cout<<"同事二获得了消息"<<strMessage<<endl;
    }
};

//具体中介者类
class ConcreteMediator : public Mediator
{
public:
    Colleague1 * col1;
    Colleague2 * col2;
    virtual void Send(string message,Colleague* col)
    {
        if(col == col1)
            col2->Notify(message);
        else
            col1->Notify(message);
    }
};

//客户端：
int main()
{
    ConcreteMediator * m = new ConcreteMediator();

    //让同事认识中介
    Colleague1* col1 = new Colleague1(m);
    Colleague2* col2 = new Colleague2(m);

    //让中介认识具体的同事类
    m->col1 = col1;
    m->col2 = col2;

    col1->Send("吃饭了吗？");
    col2->Send("还没吃，你请吗？");
    return 0;
}

补充：软件开发 , Java ,