Hi,
A question on the 'many-to-one' in ternary composite-element. Let's say I have this mapping:

<class name="Program" table="PROGRAMS">
<id column="PROGRAM_ID" ......>

<set name="userRoles" table="PROGRAM_USER_ROLE" lazy="true">
<key column="PROGRAM_ID"/>
<composite-element class="UserRoles">
<many-to-one name="user" column="USER_ID" class="User"/>
<many-to-one name="role" column="ROLE_ID" class="Role"/>
</composite-element>
</set>
</class>


So what's the relationship between Program and UserRoles ? what's the relationship between UserRole and User, Role ?