原型模式

我们拿简历为例

示例代码

WorkExperience

public class WorkExperience {

    private String time;

    private String company;

    public String getTime() {
        return time;
    }

    public void setTime(String time) {
        this.time = time;
    }

    public String getCompany() {
        return company;
    }

    public void setCompany(String company) {
        this.company = company;
    }

    public WorkExperience cusClone(){
        WorkExperience experience = new WorkExperience();
        experience.setCompany(this.company);
        experience.setTime(this.time);
        return experience;
    }
}

Resume

public class Resume {

    private String name;

    private String age;

    private String sex;

    private WorkExperience experience;

    public Resume(){}

    public Resume(String name){
        this.name = name;
        this.experience = new WorkExperience();
    }


    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAge() {
        return age;
    }

    public void setAge(String age) {
        this.age = age;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public WorkExperience getExperience() {
        return experience;
    }

//注意下这里，对于对象，我们需要拷贝
    public void setExperience(WorkExperience experience) {
        this.experience = experience.cusClone();
    }

    public Resume cusClone(){
        Resume resume = new Resume();
        resume.name = this.name;
        resume.age = this.age;
        resume.sex = this.sex;
        resume.setExperience(this.experience);
        return resume;
    }
}

使用

 public static void main(String[] args) {
        Resume resume = new Resume("mi");
        resume.setAge("20");
        resume.setSex("男");
        WorkExperience experience = new WorkExperience();
        experience.setTime("20110101-20140404");
        experience.setCompany("baidu");
        resume.setExperience(experience);

        Resume resume1 = resume.cusClone();
        resume1.getExperience().setCompany("sina");

        System.out.println(resume == resume1);
        System.out.println(resume.getExperience().getCompany());
        System.out.println(resume1.getExperience().getCompany());
    }

打印

false
baidu
sina