js24---工厂模式2

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">

<html>

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

        <title>Untitled Document</title>

        <!-- 引入的核心js公共文件 -->

        <script type=text/javascript charset=utf-8 src=../commons/../commons/CommonUtil.js></script>

        <script type=text/javascript charset=utf-8>

            //分发到不同的4S店（类似于java的抽象类）

            function CarShop(){};

            CarShop.prototype = {

                constructor : CarShop ,

                sellCar:function(type){

                    // 销售人员...

                    //var car = CarFactory.createCar(type);

                    // 保险、相关的售后服务

                    //return car ;

                    this.abstractSellCar(type);

                } ,

                abstractSellCar: function(){

                    throw new Error('this method is abstract...');

                }

            };

            // Benz 4s 店

            function BenzCarShop(){};

            BH.extend(BenzCarShop,CarShop);

            BenzCarShop.prototype = {

                constructor:BenzCarShop ,

                sellCar:function(type){

                    var car ;

                    var types = ['Benz'];    //输入参数校验

                    for(t in types){

                        // 如果我的商店里有你想要汽车型号

                        if(types[t] === type){

                            car = CarFactory.createCar(type);

                        } else {

                            alert('没有你要的型号!');

                        }

                    }

                    return car ;

                }

            };

            // 宝马  4s 店

            function BmwCarShop(){};

            BH.extend(BmwCarShop,CarShop);

            BmwCarShop.prototype = {

                constructor:BmwCarShop ,

                sellCar:function(type){

                    var car ;

                    var types = ['Bmw'];    //输入参数校验

                    for(t in types){

                        // 如果我的商店里有你想要汽车型号

                        if(types[t] === type){

                            car = CarFactory.createCar(type);

                        } else {

                            alert('没有你要的型号!');

                        }

                    }

                    return car ;

                }

            };        

            //生产车的工厂 目的就是为了生产车

            //单体模式 动态工厂模式

            var CarFactory = {

                createCar:function(type){

                    // var car = new Benz();，不需要做switch判断了

                    var car = eval('new '+type+'()');

                    //检验接口实现

                    BH.Interface.ensureImplements(car ,CarInterface);

                    return car ;

                }

            };

            // 接口对象的实例

            var CarInterface = new BH.Interface('CarInterface' ,['start','run']);

            // SuperClass  implements CarInterface

            function BaseCar(){};

            BaseCar.prototype = {

                constructor:BaseCar ,

                start:function(){

                    alert(this.constructor.name + ' ..start');

                },

                run:function(){

                    alert(this.constructor.name + ' ..run');

                }

            };

            function Benz(){};

            BH.extend(Benz,BaseCar);

            Benz.prototype.driveBenz = function(){alert('Benz..drive')};

            //Benz.prototype.run = function(){alert('Benz..run')};

            function Bmw(){};

            BH.extend(Bmw,BaseCar);

            Bmw.prototype.driveBmw = function(){alert('Bmw..drive')};

            //Bmw.prototype.run = function(){alert('Bmw..run')};    

            function Audi(){};

            BH.extend(Audi,BaseCar);

            Audi.prototype.driveAudi = function(){alert('Audi..drive')};

            //Audi.prototype.run = function(){alert('Audi..run')};    

            var shop = new CarShop();

            var car = shop.sellCar('Benz');

            car.start();

            car.run();

            car.driveBenz();

            var car2 = shop.sellCar('Bmw');

            car2.start();

            car2.run();

            car2.driveBmw();    

            var shop1 = new BenzCarShop();

            var car1 = shop1.sellCar('Benz');

            car1.run();

            var shop2 = new BmwCarShop();

            var car2 = shop2.sellCar('Bmw');

            car2.run();

        </script>

    </head>

    <body>

    </body>

</html>
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js24---工厂模式2

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