i got problem to persist parent and child. below is my mapping file and error message i got.

Mapping documents:

<hibernate-mapping>
<class name="scratch.Child" table="child" dynamic-update="false"
dynamic-insert="false" >

<id name="id" column="ID" type="long" unsaved-value="0">
<generator class="native">
</generator>
</id>

<version name="version" type="integer" column="VERSION" access="property" unsaved-value="null" />

<many-to-one name="receivePack" class="scratch.Parent" cascade="none" outer-join="auto" update="true" insert="true" access="property" column="RECEIVE_PACK" not-null="true" />
</class>
</hibernate-mapping>

<hibernate-mapping>
<class name="scratch.Parent" table="parent" dynamic-update="false"
dynamic-insert="false" >
<id name="id" column="id" type="java.lang.Integer">
<generator class="assigned"></generator>
</id>

<version name="version" type="integer" column="version" access="property" unsaved-value="null"/>

<list name="packItems" lazy="false" inverse="true"
cascade="all-delete-orphan">

<key column="RECEIVE_PACK">
</key>

<index column="NO" type="integer"/>

<one-to-many class="scratch.Child" />
</list>
</class>
</hibernate-mapping>

Session Code
ses = ThreadLocalSession.currentSession();
ses.save(parent);
ses.flush();

Error Message:
2004-11-05 09:25:42,946 DEBUG [net.sf.hibernate.impl.SessionImpl] saving [scratch.Parent#04-114]
2004-11-05 09:25:42,946 DEBUG [net.sf.hibernate.engine.Cascades] processing cascades for: scratch.Parent
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.engine.Cascades] done processing cascades for: scratch.Parent
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.engine.Cascades] processing cascades for: scratch.Parent
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.engine.Cascades] cascading to collection: scratch.Child
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.engine.Cascades] cascading to saveOrUpdate()
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.engine.Cascades] version unsaved-value strategy NULL
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.impl.SessionImpl] saveOrUpdate() unsaved instance
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.impl.SessionImpl] saving [scratch.Child#<null>]
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.engine.Versioning] Seeding: 0
2004-11-05 09:25:42,962 DEBUG [net.sf.hibernate.impl.SessionImpl] closing session

with list references you need to specify an index !!!
This means you need to have an extra field which specifies
the order of your items in the list reference.

<list name="packItems" lazy="false" inverse="true"
cascade="all-delete-orphan">
<index ...>
<key column="RECEIVE_PACK">
</key>


Try to use a set mapping instead of a list mapping.

sorry
I haven't seen your index

http://www.hibernate.org/193.html

Reto