Java注册工厂模式案例

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public Interface factory<T>{    T create();}package chapter14.factory;import java.util.ArrayList;import java.util.List;import java.util.Random;class Part{public String toString(){return getClass().getSimpleName();}static List<Factory<? extends Part>> partFactory = new ArrayList<Factory<? extends Part>>();static{partFactory.add(new FuelFillter.Factory());partFactory.add(new OilFillter.Factory());partFactory.add(new CabinFillter.Factory());partFactory.add(new AxBlet.Factory());partFactory.add(new BxBlet.Factory());}public static Random rand = new Random(47);public static Part createRandom(){int n = rand.nextInt(partFactory.size());return partFactory.get(n).create();}}class Fillter extends Part{}class FuelFillter extends Fillter{public static class Factory implements chapter14.factory.Factory<FuelFillter>{public FuelFillter create(){ return new FuelFillter();}}}class AirFillter extends Fillter{public static class Factory implements chapter14.factory.Factory<AirFillter>{public AirFillter create(){ return new AirFillter();}}}class CabinFillter extends Fillter{public static class Factory implements chapter14.factory.Factory<CabinFillter>{public CabinFillter create(){ return new CabinFillter();}}}class OilFillter extends Fillter{public static class Factory implements chapter14.factory.Factory<OilFillter>{@Overridepublic OilFillter create() {// TODO Auto-generated method stubreturn new OilFillter();}}}class Blet extends Part{}class AxBlet extends Part{public static class Factory implements chapter14.factory.Factory<AxBlet>{@Overridepublic AxBlet create() {return new AxBlet();}}}class BxBlet extends Part{public static class Factory implements chapter14.factory.Factory<BxBlet>{@Overridepublic BxBlet create() {return new BxBlet();}}}public class RegisteredFactory {public static void main(String[] args){for(int i=0;i<10;i++){System.out.println(Part.createRandom());}}}
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