数据表与简单Java类（角色与权限）进行关系的描述的具体代码是什么？

Class Action { //权限，privilege

private int aid ;

private String title ;

private String flag ;

private Role roles[] ;

public Action(int aid,String title,String flag) {

 this.aid = title ;

 this.title = title ;

 this.flag = flag ;

}

public viod setRoles(Role[] roles) {

   this.roles = roles ;

}

public Role [] getRoles() {

    return this.roles ;

}

public String getInfo()  {

     return”【权限】aid = “+this.aid+”、title = “+this.title+”、flag = “、+this.flag ;

  }

}