parent.java

来自「java相关的j2me,j2se的一些相关资料」· Java 代码 · 共 27 行

package events;

import java.util.HashSet;
import java.util.Set;
import org.hibernate.*;
import org.hibernate.cfg.Configuration;

public class Parent { //一个父类可以有多个Child类
       public long id;
       public Set children = new HashSet(); //关联到多个Child类
       public long getId(){return id;} public void setId(long id){this.id=id;}
       public Set getChildren(){return children;} public void setChildren(Set children){this.children=children;}
       public Parent(){}
       
       public static void main(String args[]){
           SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
           Session session = sessionFactory.openSession();
           Parent p = new Parent();
           session.beginTransaction();
           session.save(p);   //可以不为children设置值时,直接保存Parent数据.
           Parent deleteParent = (Parent)session.load(Parent.class,1L);
           session.delete(deleteParent);
           session.getTransaction().commit();
           sessionFactory.close();
       }
}