Given the following model

public class Service {
private Long id;
private String name;
private List audiences;

....
}

public class Audience {
private Long id;
private String description;
private Provider service;
}


a portion of the service.hbm.xml file:

<bag name="audiences" lazy="false" table="SERVICE_AUDIENCE" >
<key column="serviceId" />
<many-to-many column="audienceId" class="Audience" />
</bag>

it is currently ordered by name, but i actually want to have a secondary odering by audiences which is a collection of some value objects for example:

AUDIENCE table
id description
1 junior
2 senior

SERVICE table
id name
1 service1
2 service2


SERVICE_TABLE
serviceId audienceId
1 1
2 2

how can i configure hibernate so that a collection of services can be first sorted by name and then by audience description?