余二五 2017-11-16 754浏览量
1、中介者类Mediator及其具体实现类ConcreteMediator
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/// <summary>
/// The 'Mediator' abstract class
/// </summary>
abstract class Mediator
{
public abstract void Send(string message,Colleague colleague);
}
/// <summary>
/// The 'ConcreteMediator' class
/// </summary>
class ConcreteMediator : Mediator
{
private ConcreteColleague1 _colleague1;
private ConcreteColleague2 _colleague2;
public ConcreteColleague1 Colleague1
{
set { _colleague1 = value; }
}
public ConcreteColleague2 Colleague2
{
set { _colleague2 = value; }
}
public override void Send(string message,Colleague colleague)
{
if (colleague == _colleague1)
{
_colleague2.Notify(message);
}
else
{
_colleague1.Notify(message);
}
}
}
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2、抽象同事类Colleague及其实现类ConcreteColleague1、ConcreteColleague2
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/// <summary>
/// The 'Colleague' abstract class
/// </summary>
abstract class Colleague
{
protected Mediator mediator;
// Constructor
public Colleague(Mediator mediator)
{
this.mediator = mediator;
}
}
/// <summary>
/// A 'ConcreteColleague' class
/// </summary>
class ConcreteColleague1 : Colleague
{
// Constructor
public ConcreteColleague1(Mediator mediator)
: base(mediator)
{
}
public void Send(string message)
{
mediator.Send(message, this);
}
public void Notify(string message)
{
Console.WriteLine("Colleague1 gets message: "+ message);
}
}
/// <summary>
/// A 'ConcreteColleague' class
/// </summary>
class ConcreteColleague2 : Colleague
{
// Constructor
public ConcreteColleague2(Mediator mediator)
: base(mediator)
{
}
public void Send(string message)
{
mediator.Send(message, this);
}
public void Notify(string message)
{
Console.WriteLine("Colleague2 gets message: "+ message);
}
}
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3、客户端代码
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static void Main(string[] args)
{
ConcreteMediator m = new ConcreteMediator();
ConcreteColleague1 c1 = new ConcreteColleague1(m);
ConcreteColleague2 c2 = new ConcreteColleague2(m);
m.Colleague1 = c1;
m.Colleague2 = c2;
c1.Send("How are you? JamesHao");
c2.Send("Fine, thanks");
// Wait for user
Console.ReadKey();
}
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