& Quot; Simple Factory & quot; vs & quot; Factory Method & quot; vs & quot; Abstract Factory & quot; vs & quot; Reflect & quot;, abstractreflect

"Simple Factory" vs "Factory Method" vs "Abstract Factory" vs "Reflect", abstractreflect

Ref: http://www.cnblogs.com/zhangchenliang/p/3700820.html

1. "Simple Factory"

package torv.abc;public class HelloMain {    public static void main(String[] args) {        Driver.createCar("audi").drive();    }}//====================================================== product carabstract class Car {    private String brand;    public abstract void drive();    public String getBrand() {        return brand;    }    public void setBrand(String brandName) {        brand = brandName;    }}//------------------------------------------------benzclass BenzCar extends Car {    public BenzCar() {        setBrand("Benz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--go-----");    }}//------------------------------------------------bmwclass BmwCar extends Car {    public BmwCar() {        setBrand("Bmw");    }    @Override    public void drive() {        System.out.println(getBrand() + "--go-----");    }}//------------------------------------------------audiclass AudiCar extends Car {    public AudiCar() {        setBrand("Audi");    }    @Override    public void drive() {        System.out.println(getBrand() + "--go-----");    }}//====================================================== factoryclass Driver {    public static Car createCar(String carName) {        Car car = null;        if (carName.equalsIgnoreCase("benz")) {            car = new BenzCar();        } else if (carName.equalsIgnoreCase("bmw")) {            car = new BmwCar();        } else if (carName.equalsIgnoreCase("audi")) {            car = new AudiCar();        }        return car;    }}

2. "Factory Method"

package torv.abc;public class HelloMain {    public static void main(String[] args) {        Driver driver = new BmwDriver();        driver.createCar().drive();    }}//====================================================== product carabstract class Car {    private String brand;    public abstract void drive();    public String getBrand() {        return brand;    }    public void setBrand(String brandName) {        brand = brandName;    }}//------------------------------------------------benzclass BenzCar extends Car {    public BenzCar() {        setBrand("Benz");    }    @Override    public void drive() {        System.out.println(getBrand()+"--go-----");    }}//------------------------------------------------bmwclass BmwCar extends Car {    public BmwCar() {        setBrand("Bmw");    }    @Override    public void drive() {        System.out.println(getBrand()+"--go-----");    }}//------------------------------------------------audiclass AudiCar extends Car {    public AudiCar() {        setBrand("Audi");    }    @Override    public void drive() {        System.out.println(getBrand()+"--go-----");    }}//====================================================== factoryabstract class Driver {    public abstract Car createCar();}class BenzDriver extends Driver{    @Override    public Car createCar() {        return new BenzCar();    }    }class BmwDriver extends Driver{    @Override    public Car createCar() {        return new BmwCar();    }    }class AudiDriver extends Driver{    @Override    public Car createCar() {        return new AudiCar();    }    }

3. "Abstract Factory"

package torv.abc;public class HelloMain {    public static void main(String[] args) {        Driver driver = new SportDriver();        driver.createAudiCar().drive();    }}//====================================================== product carabstract class Car {    private String brand;    private String kind;    public abstract void drive();    public String getBrand() {        return brand;    }    public void setBrand(String brandName) {        brand = brandName;    }    public String getKind() {        return kind;    }    public void setKind(String kindName) {        kind = kindName;    }}//------------------------------------------------benzabstract class BenzCar extends Car {    public BenzCar() {        setBrand("Benz");    }}class BenzSportCar extends BenzCar {    public BenzSportCar() {        setKind("Sport");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}class BenzBizCar extends BenzCar {    public BenzBizCar() {        setKind("Biz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}//------------------------------------------------bmwabstract class BmwCar extends Car {    public BmwCar() {        setBrand("Bmw");    }}class BmwSportCar extends BmwCar {    public BmwSportCar() {        setKind("Sport");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}class BmwBizCar extends BmwCar {    public BmwBizCar() {        setKind("Biz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}//------------------------------------------------audiabstract class AudiCar extends Car {    public AudiCar() {        setBrand("Audi");    }}class AudiSportCar extends AudiCar {    public AudiSportCar() {        setKind("Sport");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}class AudiBizCar extends AudiCar {    public AudiBizCar() {        setKind("Biz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}//====================================================== factoryabstract class Driver {    public abstract Car createBenzCar();    public abstract Car createBmwCar();    public abstract Car createAudiCar();}class SportDriver extends Driver {    @Override    public Car createBenzCar() {        return new BenzSportCar();    }    @Override    public Car createBmwCar() {        return new BmwSportCar();    }    @Override    public Car createAudiCar() {        return new AudiSportCar();    }}class BizDriver extends Driver {    @Override    public Car createBenzCar() {        return new BenzBizCar();    }    @Override    public Car createBmwCar() {        return new BmwBizCar();    }    @Override    public Car createAudiCar() {        return new AudiBizCar();    }}

3. "Simple Factory" + Reflect

package torv.abc;public class HelloMain {    public static void main(String[] args) {        try {            Driver.createCar("torv.abc.BenzSportCar").drive();        } catch (Exception e) {            e.printStackTrace();        }    }}//====================================================== product carabstract class Car {    private String brand;    private String kind;    public abstract void drive();    public String getBrand() {        return brand;    }    public void setBrand(String brandName) {        brand = brandName;    }    public String getKind() {        return kind;    }    public void setKind(String kindName) {        kind = kindName;    }}//------------------------------------------------benzabstract class BenzCar extends Car {    public BenzCar() {        setBrand("Benz");    }}class BenzSportCar extends BenzCar {    public BenzSportCar() {        setKind("Sport");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}class BenzBizCar extends BenzCar {    public BenzBizCar() {        setKind("Biz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}//------------------------------------------------bmwabstract class BmwCar extends Car {    public BmwCar() {        setBrand("Bmw");    }}class BmwSportCar extends BmwCar {    public BmwSportCar() {        setKind("Sport");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}class BmwBizCar extends BmwCar {    public BmwBizCar() {        setKind("Biz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}//------------------------------------------------audiabstract class AudiCar extends Car {    public AudiCar() {        setBrand("Audi");    }}class AudiSportCar extends AudiCar {    public AudiSportCar() {        setKind("Sport");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}class AudiBizCar extends AudiCar {    public AudiBizCar() {        setKind("Biz");    }    @Override    public void drive() {        System.out.println(getBrand() + "--" + getKind() + "--go-------");    }}//====================================================== factoryabstract class Driver {    public static Car createCar(String name) throws Exception{        return (Car) Class.forName(name).newInstance();    }}