Brett Meyer commented on an issue
Hibernate ORM / Improvement HHH-8259
Allow pluggable component tuplizers for composite-id elements on the mapping dtd
hibernate-mapping-3.0.dtd does not allow for a composite-id element to have a nested tuplizer element.

However, composite-ids are otherwise treated as components, which makes me think that the dtd looks to be inconsistent with the general design in that respect. In fact, it is. Modifying the composite-id element declaration on the dtd to allow for tupl...