在C#里使用NHibernate，如何使用连接查询？
测试两个表：
department.hbm.xml

<?xml   version= "1.0 "   encoding= "utf-8 "   ?>
<hibernate-mapping   xmlns= "urn:nhibernate-mapping-2.2 ">
<class   name= "Test.Model.Department,   Test.Model "   table= "department ">
<id   name= "Id "   type= "Int16 "   unsaved-value= "null ">
<column   name= "id "   length= "2 "   sql-type= "smallint "   not-null= "true "   unique= "true "   index= "PK_department "/>
<generator   class= "native "   />
</id>
<property   name= "Departmentname "   type= "String ">
<column   name= "departmentname "   length= "50 "   sql-type= "varchar "   not-null= "true "/>
</property>
<bag   name= "departmentemployees "   inverse= "true "   lazy= "true "   outer-join= "true "       cascade= "all-delete-orphan ">
<key   column= "department "/>
<one-to-many   class= "Test.Model.Employee,   Test.Model "/>
</bag>
</class>
</hibernate-mapping>

上表存有数据：
id         departmentname
1           技术

另一个表Employee.hbm.xml：

<?xml   version= "1.0 "   encoding= "utf-8 "   ?>
<hibernate-mapping   xmlns= "urn:nhibernate-mapping-2.2 ">
<class   name= "Test.Model.Employee,   Test.Model "   table= "employee ">
<id   name= "Id "   type= "Int32 "   unsaved-value= "null ">
<column   name= "id "   length= "4 "   sql-type= "int "   not-null= "true "   unique= "true "   index= "PK_employee "/>
<generator   class= "native "   />
</id>
<property   name= "Name "   type= "String ">
<column   name= "name "   length= "50 "   sql-type= "varchar "   not-null= "false "/>
</property>
<property   name= "Age "   type= "Int16 ">
<column   name= "age "   length= "2 "   sql-type= "smallint "   not-null= "false "/>
</property>
<many-to-one   name= "department "   class= "Test.Model.Department,   Test.Model "   outer-join= "true ">
<column   name= "department "   length= "2 "   sql-type= "smallint "   not-null= "true "/>
</many-to-one>
</class>
</hibernate-mapping>
数据为
Name     Age     department
张三     20       1

想要实现的功能就是在查询时能够列出完整的信息：
Name         Age         Department
张三         20             技术

在文件里面怎么写？

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