抽象工厂

参考《设计模式的艺术软件开发人员内功修炼之道》-刘伟 著

实验目的

抽象工厂可以理解为多态工厂的增强版，一个具体的工厂类负责生产一组不同产品

实验代码

package AbstractFactory;

interface OperationController{
    public void DoOperation();
}

class SymbianOperationController implements OperationController {

    @Override
    public void DoOperation() {
        // TODO Auto-generated method stub
        System.out.println("SymbianOperationController...");
    }

}
class AndroidOperationController implements OperationController {

    @Override
    public void DoOperation() {
        // TODO Auto-generated method stub
        System.out.println("AndroidOperationController...");
    }

}
class WindowsOperationController implements OperationController {

    @Override
    public void DoOperation() {
        // TODO Auto-generated method stub
        System.out.println("WindowsOperationController...");
    }

}

interface InterfaceController{
    public void DisplayInterface();
}

class SymbianInterfaceController implements InterfaceController{

    @Override
    public void DisplayInterface() {
        // TODO Auto-generated method stub
        System.out.println("SymbianInterfaceController...");
    }

}
class AndroidInterfaceController implements InterfaceController{

    @Override
    public void DisplayInterface() {
        // TODO Auto-generated method stub
        System.out.println("AndroidInterfaceController...");
    }

}
class WindowsInterfaceController implements InterfaceController{

    @Override
    public void DisplayInterface() {
        // TODO Auto-generated method stub
        System.out.println("WindowsInterfaceController...");
    }

}

interface OperationSystem{
    public OperationController getOperationController();
    public InterfaceController getInterfaceController();
}

class Symbian implements OperationSystem{

    @Override
    public OperationController getOperationController() {
        // TODO Auto-generated method stub
        return new SymbianOperationController();
    }

    @Override
    public InterfaceController getInterfaceController() {
        // TODO Auto-generated method stub
        return new SymbianInterfaceController();
    }

}
class Android implements OperationSystem{

    @Override
    public OperationController getOperationController() {
        // TODO Auto-generated method stub
        return new AndroidOperationController();
    }

    @Override
    public InterfaceController getInterfaceController() {
        // TODO Auto-generated method stub
        return new AndroidInterfaceController();
    }

}
class Windows implements OperationSystem{

    @Override
    public OperationController getOperationController() {
        // TODO Auto-generated method stub
        return new WindowsOperationController();
    }

    @Override
    public InterfaceController getInterfaceController() {
        // TODO Auto-generated method stub
        return new WindowsInterfaceController();
    }

}

public class AbstractFactoryTest {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        OperationSystem os = new Android();
        OperationController oc = os.getOperationController();
        InterfaceController ic = os.getInterfaceController();
        oc.DoOperation();
        ic.DisplayInterface();
    }

}

结果输出

AndroidOperationController...
AndroidInterfaceController...

总结

• 抽象工厂相比多态工厂减少了工厂类的数量
• 工厂要求初期设计上保证考虑周全，后期增加接口，需要修改所有工厂类