<entity class= "org.sm.EndpointList" >
        <table name= "ENDPOINT_LIST" />
        <attributes>
            ...
            <many-to-many name= "endpoints">
               <join-table name= "ENDPOINT_LIST_TO_ENDPOINTS" >
                      <join-column name= "fk_endpoint_list_id" nullable= "false" />
                      <inverse-join-column name= "fk_endpoint_id" nullable= "false" />
                      <unique-constraint>
                            <column-name> fk_endpoint_list_id</column-name >
                            <column-name> fk_endpoint_id</column-name >
                      </unique-constraint>
               </join-table>
               <cascade>
                      <cascade-all />
               </cascade>
            </many-to-many>
        </attributes>
    </entity >


    <entity class="org.sm.Endpoint">
        <table name= "ENDPOINTS"/>
        <attributes>
	...
        </attributes>
    </entity >