student.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.entity;

import java.io.Serializable;
import java.util.HashSet;
import java.util.Set;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.ManyToMany;
import javax.persistence.Table;

/**
 * 
 * @author xywang
 * @since 2009-2-13
 * @version 1.0
 * 
 */
@SuppressWarnings("serial")
@Entity
@Table(name="Student")
public class Student implements Serializable{
    private Integer studentid;
    private String studentName;
    private Set<Teacher> teachers = new HashSet<Teacher>();
    public Student(){}
    public Student(String studentname){
        this.studentName = studentname;
    }
    @Id
    @GeneratedValue
    public Integer getStudentid(){
        return studentid;
    }
    public void setStudentid(Integer studentid){
        this.studentid = studentid;
    }
    @Column(nullable = false,length=32)
    public String getStudentName(){
        return studentName;
    }
    public void setStudentName(String studentName){
        this.studentName = studentName;
    }
    @ManyToMany(mappedBy = "students")
    public Set<Teacher> getTeachers(){
        return teachers;
    }
    public void setTeachers(Set<Teacher> teachers){
        this.teachers = teachers;
    }
    
}