急急！！hibernate left join 取join表字段值为null??

---------------------------------Employee实体类------------------------------
public class Employee {
private String id;
private String group_id;
        private String name;
private Group group;
getter() setter()略。。。。
}

-------------------------------Group 实体类------------------------------------
public class Group {
private String id;
private String group_code;//班次ID
private String name;//名称
private Set<Employee> employee;
getter() setter()略。。。
}

---------------------------------Emoployee.hbm.xml----------------------------------
<hibernate-mapping>
    <class name="com.naite.entity.Employee" table="ut_employee" >
        <id name="id" type="java.lang.String">
            <column name="ut_employee_id" length="36" />
            <generator class="uuid.hex"/>
        </id>

        <property name="group_id" type="java.lang.String" lazy="true">
            <column name="ut_group_id" length="36" />

        </property>
                 <property name="name" type="java.lang.String">
            <column name="name" length="50" />
        </property>

        <many-to-one name="group" class="com.naite.entity.Group" column="ut_group_id"
         insert="false" update="false"/>

    </class>
</hibernate-mapping>

----------------------------------------Group.hbm.xml--------------------------------------
<hibernate-mapping>
    <class name="com.naite.entity.Group" table="ut_group" >
        <id name="id" type="java.lang.String">
            <column name="id" length="32"/>
            <generator class="uuid.hex"/>
        </id>
        <property name="group_code" type="java.lang.String" lazy="true">
            <column name="ut_group_id" length="36" />
        </property>

        <property name="name" type="java.lang.String"  lazy="true">
            <column name="name" length="50" />
        </property>

   <set name="employee">
       <key column="id"></key>
      <one-to-many class="com.naite.entity.Employee" not-found="ignore"/>
   </set>
    </class>
</hibernate-mapping>

-----------------------------------------hql语句--------------------------------------
String sql="select e,g.name from Employee e left join fetch e.group g where 1=1";

List<Employee> list=getHibernateTemplate().find(sql, pramlist.toArray(new Object[0]));

------------------------------------------查询后结果------------------------------------

g.name=null;    Employee.group内的各个字段属性也为Null

------------------------------------------想要结果--------------------------------------
查出每位员工所在的组的名称（Group.name）;员工未分组的对应的组名（Group.name）为空

Hibernate left join 多表字段显示 --------------------编程问答-------------------- select e,g.name from Employee e left join fetch e.group g where 1=1

这语句怎么那么别扭，left join 是和on一起用的，俩表关联的字段写上 --------------------编程问答-------------------- select e,g.name from Employee e left join fetch e.group g where 1=1

这语句怎么那么别扭，left join 是和on一起用的，俩表关联的字段写上 --------------------编程问答-------------------- select e,g.name from Employee e left join fetch e.group g where 1=1

hibernate里不是没有left join on吗纯sql语句我会写，但是HQL怎么写啊？求大侠帮助……菜鸟小弟多谢

补充：Java ,  Java EE