CS-Notes/docs/notes/设计模式 - 原型模式.md
2019-11-02 22:11:39 +08:00

1.2 KiB
Raw Blame History

6. 原型模式Prototype

Intent

使用原型实例指定要创建对象的类型,通过复制这个原型来创建新对象。

Class Diagram


Implementation

public abstract class Prototype {
    abstract Prototype myClone();
}
public class ConcretePrototype extends Prototype {

    private String filed;

    public ConcretePrototype(String filed) {
        this.filed = filed;
    }

    @Override
    Prototype myClone() {
        return new ConcretePrototype(filed);
    }

    @Override
    public String toString() {
        return filed;
    }
}
public class Client {
    public static void main(String[] args) {
        Prototype prototype = new ConcretePrototype("abc");
        Prototype clone = prototype.myClone();
        System.out.println(clone.toString());
    }
}
abc

JDK