IBATISNET中的lazyLoad

使用IBATISNET免不了用到lazyload特性，这样可以实现延迟加载，提高数据库访问效率。但使用lazyload的时候要小心，别忘了给需要lazyload的属性加上virtual关键字哦，不然的话无法实现延迟加载的(我发现在单步调试的时候反而可以延迟加载)。

映射文件：

    <resultMap id="ApplicationResult" class="Application">
      <result property="Id" column="id" dbType="guid"/>
      <result property="YearNum" column="yearnum"/>

      <result property="Budget.XMLValue" column="budget"/>
      <result property="StudentInfo" column='id' select="Application.SelectStudentInfo" lazyLoad="true"/>
      <result property="TeacherInfo" column="id" select="Application.SelectTeacherInfo" lazyLoad="true"/>

    </resultMap>

 

对应的Model

 

    [Serializable]
    public class Application
    {
        #region Model
        private Guid _id = Guid.Empty;

        private IList<StudentInfo> _students = new List<StudentInfo>(0);
        private IList<TeacherInfo> _teachers = new List<TeacherInfo>(0);

        public Application()
        { }

        public Guid Id
        {
            set { _id = value; }
            get { return _id; }
        }

        public virtual IList<StudentInfo> StudentInfo
        {
            get { return _students; }
            set { _students = value; }
        }

        public virtual IList<TeacherInfo> TeacherInfo
        {
            get { return _teachers; }
            set { _teachers = value; }
        }

}