NHIbernate: How to map a bag with an ICompositeUserType

Question

Suppose I have a class with a collection of immutable types, that I would like to map with a custom ICompositeUserType

public class Foo
{
    public long Id { ge         


        

Answer 1

element instead of composite-element because the properties and conversion is specified inside the ICompositeUserType

<element type="Integration.UserTypes.BarCompositeUserType, Integration">
  <column name="BarBlah" />
  <column name="BarHalb" />
</element>