仿照<java与模式>中bridge模式的例子自己改写的一个例子:
有N个飞机制造商(AirBus.....),每个飞机制造商有客机(PassenagerPlane)和货机(CargoPlane).....实现代码如下:
1.飞机制造商抽象接口:
interface IAirPlaneMaker
{
string name { get;} //制造商名称
IAirPlane producePass(); //生产一量客机
//生产一两货机
}
{
string name { get;} //制造商名称
IAirPlane producePass(); //生产一量客机
//生产一两货机
}
2.飞机抽象接口
interface IAirPlane
{
void Fly(); //飞行方法
IAirPlaneMaker maker { get;set;} //制造商
}
{
void Fly(); //飞行方法
IAirPlaneMaker maker { get;set;} //制造商
}
3.飞机制造商的一个实现
class AirBus : IAirPlaneMaker
{
private string _name = "AirBus company";
#region IAirPlaneMaker Members
public string name
{
get
{
return this._name;
}
}
public IAirPlane producePass()
{
IAirPlane pass = new PassengerPlane();
pass.maker = this;
return pass;
}
#endregion
}
{
private string _name = "AirBus company";
#region IAirPlaneMaker Members
public string name
{
get
{
return this._name;
}
}
public IAirPlane producePass()
{
IAirPlane pass = new PassengerPlane();
pass.maker = this;
return pass;
}
#endregion
}
4 飞机的实现
class PassengerPlane : IAirPlane
{
private IAirPlaneMaker _maker;
#region IAirPlane Members
public void Fly()
{
System.Console.WriteLine("The " + _maker.name + "'s PassenterPlane is flying~~~!");
}
public IAirPlaneMaker maker
{
get
{
return this._maker;
}
set
{
this._maker = value;
}
}
#endregion
}
class CargoPlane : IAirPlane
{
private IAirPlaneMaker _maker;
#region IAirPlane Members
public void Fly()
{
System.Console.WriteLine("The " + _maker.name + "'s CargoPlane is flying~~~!");
}
public IAirPlaneMaker maker
{
get
{
return this._maker;
}
set
{
this._maker = value;
}
}
#endregion
}
{
private IAirPlaneMaker _maker;
#region IAirPlane Members
public void Fly()
{
System.Console.WriteLine("The " + _maker.name + "'s PassenterPlane is flying~~~!");
}
public IAirPlaneMaker maker
{
get
{
return this._maker;
}
set
{
this._maker = value;
}
}
#endregion
}
class CargoPlane : IAirPlane
{
private IAirPlaneMaker _maker;
#region IAirPlane Members
public void Fly()
{
System.Console.WriteLine("The " + _maker.name + "'s CargoPlane is flying~~~!");
}
public IAirPlaneMaker maker
{
get
{
return this._maker;
}
set
{
this._maker = value;
}
}
#endregion
}
5 通过这种bridge模式,客户端代码非常简洁
IAirPlaneMaker maker = new AirBus();
IAirPlane passPlane = maker.producePass();
passPlane.Fly();
IAirPlane passPlane = maker.producePass();
passPlane.Fly();
考虑:飞机制造商中生产飞机的方式不是很好,藕合度太高,如果要新增加一种飞机生产,则必须改变制造商接口极其所有实现子类。考虑使用工厂模式实现。。。。。