/**

 * 备忘录模式

 * @author TMAC-J

 * 用于存储bean的状态

 */

public class MementoPattern {

    public class Memento{

        private int lifeValue;

        private int grade;

        public int getLifeValue() {

            return lifeValue;

        }

        public void setLifeValue(int lifeValue) {

            this.lifeValue = lifeValue;

        }

        public int getGrade() {

            return grade;

        }

        public void setGrade(int grade) {

            this.grade = grade;

        }

    }

    public class Originator{

        public Originator(int lifeValue,int grade) {

            this.grade = grade;

            this.lifeValue = lifeValue;

        }

        private int lifeValue;

        private int grade;

        public int getLifeValue() {

            return lifeValue;

        }

        public void setLifeValue(int lifeValue) {

            this.lifeValue = lifeValue;

        }

        public int getGrade() {

            return grade;

        }

        public void setGrade(int grade) {

            this.grade = grade;

        }

        public Memento createMemento(){

            Memento memento = new Memento();

            memento.setGrade(this.grade);

            memento.setLifeValue(this.lifeValue);

            return memento;

        }

        public void setMemento(Memento memento){

            this.lifeValue = memento.getLifeValue();

            this.grade = memento.getGrade();

        }

    }

    public class MementoManage{

        private Memento memento;

        public Memento getMemento() {

            return memento;

        }

        public void setMemento(Memento memento) {

            this.memento = memento;

        }

    }

    public void test(){

        Originator originator = new Originator(10,10);

        Memento memento = originator.createMemento();

        originator.setMemento(memento);

    }

}