Hello All,

I'm using Hibernate 3. I have a Party class with a Map of Capability objects using CapabilityType objects as keys. I need the map to be persisted when detached Party objects are saved (using merge() ). The mapped values all cascade perfectly (thanks!) and the keys cascade if I map them as a <composite-map-key> like this:



I would really like the key class to be in a separate table, however. Ideally I would use a mapping like this:



But the <map-key-many-to-many> does not cascade saves. I get errors because the key has not already been saved. I'm not going to be able to save the keys separately since the objects are detached when the map is changed.

Is there a way to cascade to a <map-key-many-to-many> ?

I do not know how to do cascade for a map many-to-many case.

I am trying to do what you have done - map, composite-map-kay and one-to-many. I need some help.

Is Capability a normal persistent class using class element ?

Is this a collection: <one-to-many class="Capability" /> and what is the java implementation for this collection. I tried using HashMap (if HashMap what should be key? ) and ArrayList and get different problems,.

Will be glad to get a reply.
/Kwan

I've the same problem, and have been digging through the forums for an answer. I've found this post:

http://forum.hibernate.org/viewtopic.ph ... ys+cascade

So apparently this is intentional. It would be very helpful if this behavior were documented.