hbm2ddl with idbag & collection-type attribute

jdwyah · **Joined:** Wed Mar 29, 2006 8:42 pm **Posts:** 7

Hibernate version: hibernate-tools 3.1.0.beta4

First off, I've been having all sorts of wonderful successes with this stuff. Hat's off. My idbag worked just fine, but it was creating java.util.Collections and I'm trying to change it to java.util.List. Does the collection-type attribute work? Or have I missed something? Is this even appropriate here? It seemed like it should be ok to me.

Code:

<idbag name="seeAlso" table="SeeAlso" cascade="all" collection-type="java.util.List">
         <collection-id column="id" type="long">
            <generator class="native" />
         </collection-id>
         <key column="topic_from" />
         <many-to-many column="topic_to" class="Topic" fetch="join" />
   </idbag>

This is the the error that I get.

Code:

Caused by: org.hibernate.MappingException: Custom type does not implement UserCollectionType: java.util.List

ditto if I try org.hibernate.type.ListType of course. Do I really need to do a user type here?

max · **Posted:** Tue Jun 13, 2006 12:41 am

collection-type is for providing your own handler for managing a collection. nothing to do with the codegen.

what you need is to add a <meta attribute="property-type">java.util.List</meta> then you should be fine.