设计模式-抽象工厂模式（Abstract Factory）

1.一个系统不应当依赖于产品类实例如何被创建、组合和表达的细节，这对于所有形态的工厂模式都是重要的。

2.这个系统的产品有多于一个的产品族，而系统只消费其中某一族的产品。

3.同属于同一个产品族的产品是在一起使用的，这一约束必须在系统的设计中体现出来。（比如：Intel主板必须使用Intel CPU、Intel芯片组）

4.系统提供一个产品类的库，所有的产品以同样的接口出现，从而使客户端不依赖于实现。

Cpu.java

package cn.foxeye.design.abstractfactory;

public interface Cpu {

void getCpuTypeName();

}

IntelCpu.java

package cn.foxeye.design.abstractfactory;

public class IntelCpu implements Cpu {

private String cpuTypeName = "Intel";

@Override
public void getCpuTypeName() {
System.out.println("CPU 型号：" + cpuTypeName);
}

}

AmdCpu.java

package cn.foxeye.design.abstractfactory;

public class AmdCpu implements Cpu {

private String cpuTypeName = "AMD";

@Override
public void getCpuTypeName() {
System.out.println("CPU 型号：" + cpuTypeName);
}

}

Mainboard.java

package cn.foxeye.design.abstractfactory;

public interface Mainboard {

void getMainboardTypeName();

}

IntelMainboard.java

package cn.foxeye.design.abstractfactory;

public class IntelMainboard implements Mainboard {

private String mainboardTypeName = "Intel";

@Override
public void getMainboardTypeName() {
System.out.println("主板型号：" + mainboardTypeName);
}

}

AmdMainboard.java

package cn.foxeye.design.abstractfactory;

public class AmdMainboard implements Mainboard {

private String mainboardTypeName = "AMD";

@Override
public void getMainboardTypeName() {
System.out.println("主板型号：" + mainboardTypeName);
}

}

ComputerFactory.java

package cn.foxeye.design.abstractfactory;

public interface ComputerFactory {

Cpu createCpu();

Mainboard createMainboard();

}

IntelComputerFactory.java

package cn.foxeye.design.abstractfactory;

public class IntelComputerFacotry implements ComputerFactory {

@Override
public Cpu createCpu() {

return new IntelCpu();
}

@Override
public Mainboard createMainboard() {
return new IntelMainboard();
}

}

AmdComputerFactory.java

package cn.foxeye.design.abstractfactory;

public class AmdComputerFacotry implements ComputerFactory {

@Override
public Cpu createCpu() {

return new AmdCpu();
}

@Override
public Mainboard createMainboard() {
return new AmdMainboard();
}

}

Main.java

package cn.foxeye.design.abstractfactory;

public class Main {

public static void main(String[] args) {

ComputerFactory factory = new AmdComputerFacotry();

factory.createCpu().getCpuTypeName();
factory.createMainboard().getMainboardTypeName();
}

}

参考实例来源于博客特种兵—AK47的《JAVA与模式》26天系列—第3天—抽象工厂模式的文章，仅供自己学习用。