我看懂的设计模式 Abstract Factory，抽象工厂

Abstract Factory，抽象工厂：提供一个创建一系列相关或相互依赖对象的接口，而无须指定它们的具体类。

 

 

 

package com.cbf4life;
public interface Human {

public void laugh();

public void cry();

public void talk();
//定义性别
public void sex();
}

package com.cbf4life.yellowHuman;
import com.cbf4life.Human;
/**
* 为什么要修改成抽象类呢？要定义性别呀
*/
public abstract class AbstractYellowHuman implements Human {
public void cry() {
System.out.println("黄色人种会哭");
}
public void laugh() {
System.out.println("黄色人种会大笑，幸福呀！");
}
public void talk() {
System.out.println("黄色人种会说话，一般说的都是双字节");
}
}

package com.cbf4life.whiteHuman;
import com.cbf4life.Human;

public abstract class AbstractWhiteHuman implements Human {
public void cry() {
System.out.println("白色人种会哭");
}
public void laugh() {
System.out.println("白色人种会大笑，侵略的笑声");
}
public void talk() {
System.out.println("白色人种会说话，一般都是但是单字节！");
}
}

package com.cbf4life.blackHuman;
import com.cbf4life.Human;
public abstract class AbstractBlackHuman implements Human {
public void cry() {
System.out.println("黑人会哭");
}
public void laugh() {
System.out.println("黑人会笑");
}
public void talk() {
System.out.println("黑人可以说话，一般人听不懂");
}
}

package com.cbf4life.yellowHuman;
public class YellowFemaleHuman extends AbstractYellowHuman {
public void sex() {
System.out.println("该黄种人的性别为女...");
}
}

package com.cbf4life.yellowHuman;
public class YellowMaleHuman extends AbstractYellowHuman {
public void sex() {
System.out.println("该黄种人的性别为男....");
}
}
package com.cbf4life.whiteHuman;
public class WhiteFemaleHuman extends AbstractWhiteHuman {
public void sex() {
System.out.println("该白种人的性别为女....");
}
}

package com.cbf4life.whiteHuman;
public class WhiteMaleHuman extends AbstractWhiteHuman {
public void sex() {
System.out.println("该白种人的性别为男....");
}
}

package com.cbf4life.blackHuman;
public class BlackFemaleHuman extends AbstractBlackHuman {
public void sex() {
System.out.println("该黑种人的性别为女...");
}
}

package com.cbf4life.blackHuman;

public class BlackMaleHuman extends AbstractBlackHuman {
public void sex() {
System.out.println("该黑种人的性别为男...");
}
}

 

 

public enum HumanEnum {
//把世界上所有人类型都定义出来
YelloMaleHuman("com.cbf4life.yellowHuman.YellowMaleHuman"),
YelloFemaleHuman("com.cbf4life.yellowHuman.YellowFemaleHuman"),
WhiteFemaleHuman("com.cbf4life.whiteHuman.WhiteFemaleHuman"),
WhiteMaleHuman("com.cbf4life.whiteHuman.WhiteMaleHuman"),
BlackFemaleHuman("com.cbf4life.blackHuman.BlackFemaleHuman"),
BlackMaleHuman("com.cbf4life.blackHuman.BlackMaleHuman");

private String value = "";
//定义构造函数，目的是Data(value)类型的相匹配
private HumanEnum(String value){
this.value = value;
}
public String getValue(){
return this.value;
}

 

 

 

package com.cbf4life;
public interface HumanFactory {
public Human createYellowHuman();
public Human createWhiteHuman();
public Human createBlackHuman();
}

package com.cbf4life.humanFactory;
import com.cbf4life.Human;
import com.cbf4life.HumanEnum;
import com.cbf4life.HumanFactory;

public abstract class AbstractHumanFactory implements HumanFactory {

protected Human createHuman(HumanEnum humanEnum) {
Human human = null;
//如果传递进来不是一个Enum中具体的一个Element的话，则不处理
if (!humanEnum.getValue().equals("")) {
try {
//直接产生一个实例
human = (Human)
Class.forName(humanEnum.getValue()).newInstance();
} catch (Exception e) {
//因为使用了enum，这个种异常情况不会产生了，除非你的enum有问题；
e.printStackTrace();
}
}
return human;
}
}

package com.cbf4life.humanFactory;
import com.cbf4life.Human;
import com.cbf4life.HumanEnum;
/
public class MaleHumanFactory extends AbstractHumanFactory {
//创建一个男性黑种人
public Human createBlackHuman() {
return super.createHuman(HumanEnum.BlackMaleHuman);
}
//创建一个男性白种人
public Human createWhiteHuman() {
return super.createHuman(HumanEnum.WhiteMaleHuman);
}
//创建一个男性黄种人
public Human createYellowHuman() {
return super.createHuman(HumanEnum.YelloMaleHuman);
}
}

package com.cbf4life.humanFactory;
import com.cbf4life.Human;
import com.cbf4life.HumanEnum;

public class FemaleHumanFactory extends AbstractHumanFactory {
//创建一个女性黑种人
public Human createBlackHuman() {
return super.createHuman(HumanEnum.BlackFemaleHuman);
}
//创建一个女性白种人
public Human createWhiteHuman() {
return super.createHuman(HumanEnum.WhiteFemaleHuman);
}
//创建一个女性黄种人
public Human createYellowHuman() {
return super.createHuman(HumanEnum.YelloFemaleHuman);
}
}

package com.cbf4life;
import com.cbf4life.humanFactory.FemaleHumanFactory;
import com.cbf4life.humanFactory.MaleHumanFactory;


public class NvWa {
public static void main(String[] args) {
//第一条生产线，男性生产线
HumanFactory maleHumanFactory = new MaleHumanFactory();
//第二条生产线，女性生产线
HumanFactory femaleHumanFactory = new FemaleHumanFactory();
//生产线建立完毕，开始生产人了:
Human maleYellowHuman = maleHumanFactory.createYellowHuman();
Human femaleYellowHuman = femaleHumanFactory.createYellowHuman();
maleYellowHuman.cry();
maleYellowHuman.laugh();
femaleYellowHuman.sex();
/*
* .....
*/
}
}