onetoonedaobean.java

jboss4 + Mysql +ejb3.0 EJB3 简单例子

/**
 * Copyright (c)上海烟草(集团)公司与上海康时信息系统有限公司。
 */
package com.myejb.imp;

import java.util.Date;

import javax.ejb.Remote;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

import com.myejb.OneToOneDAO;
import com.myejb.entity.IDCard;
import com.myejb.entity.Person;

/**
 * 
 * @author xywang
 * @since 2009-2-13
 * @version 1.0
 */
@Stateless
@Remote({OneToOneDAO.class})
public class OneToOneDAOBean implements OneToOneDAO{
    @PersistenceContext protected EntityManager em;
    /* （非 Javadoc）
     * @see com.myejb.OneToOneDAO#deletePerson(java.lang.Integer)
     */
    public void deletePerson(Integer personid){
        Person person = em.find(Person.class,personid);
        if(person!=null)em.remove(person);
    }

    /* （非 Javadoc）
     * @see com.myejb.OneToOneDAO#getPersonByID(java.lang.Integer)
     */
    public Person getPersonByID(Integer personid){
        Person person = em.find(Person.class,personid);
        return person;
    }

    /* （非 Javadoc）
     * @see com.myejb.OneToOneDAO#insertPerson(java.lang.String, boolean, short, java.util.Date, java.lang.String)
     */
    public void insertPerson(String name,boolean sex,short age,Date birthday,String cardID){
        Person person = new Person();
        person.setName(name);
        person.setSex(sex);
        person.setAge(age);
        person.setBirthday(birthday);
        IDCard idcard = new IDCard(cardID);
        idcard.setPerson(person);
        person.setIdcard(idcard);
        em.persist(person);

    }

    /* （非 Javadoc）
     * @see com.myejb.OneToOneDAO#updatePersonInfo(java.lang.Integer, java.lang.String, java.lang.String)
     */
    public void updatePersonInfo(Integer personid,String newname,String newIDcard){
        Person person = em.find(Person.class,personid);
        if(person!=null){
            person.setName(newname);
            if(person.getIdcard()!=null){
                person.getIdcard().setCardno(newIDcard);
            }
        }

    }

}