I have the folllowing mapping file hacked up....

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 2.0//EN" "http://hibernate.sourceforge.net/hibernate-mapping-2.0.dtd">
<hibernate-mapping>
<class name="AclImpl" table="control_lists">
<id name="name" type="string" column="acl_key">
<generator class="assigned"/>
</id>
<many-to-one name="owner" class="PrincipalImpl" access="field" column="principal_key" cascade="all" />
<map name="individualToPositivePermission" cascade="all">
<key column="acl_key" />
<index-many-to-many class="PrincipalImpl" />
<many-to-many class="AclEntryImpl"/>
</map>
</class>
</hibernate-mapping>

And I see this output upon saving the AclImpl...

21:20:20,152 DEBUG SQL:237 - insert into control_lists (principal_key, acl_key) values (?, ?)
21:20:20,162 DEBUG SQL:237 - update acl_entries set negativePermission=? where acl_entry_key=?

This fails because the AclEntryImpl hasn't been saved to the database yet. Anything obvious I'm missing here?

looking forward to Hibernate In Action hitting book stores! ...

~harris

show java code

I had same problem as you.

http://forum.hibernate.org/viewtopic.php?t=931958

the difference is I'm not using one-to-many relationship,
the result is same (with the transaction management)

hi guys,
please read again parent/child relationship,
also check "inverse" doc on the wiki

and if after that, you don't understand, come back here, in this post

but did you see my post?
I haven't any relationship,
and my code is update first,then update ,
but the output is insert and update.

Here's the jave code...

Acl accessList = AclFactory.getAcl( owner, "exampleAcl" );

Principal testUser = PrincipalImpl( "testUser" );
Permission fileRead = PermissionImpl( "readFile" );

AclEntry negativeEntry = AclFactory.getAclEntry( testUser );
negativeEntry.addPermission( fileRead );
accessList.addEntry( owner, negativeEntry );

SessionFactory factory = HibernateUtil.getSecuritySessionFactory();
Session session = factory.openSession();
Transaction transaction = session.beginTransaction();
session.save( accessList, accessList.getName() );
transaction.commit();

... Acl class has a map of Principal -> AclEntry. I would like to just save the accessList and have Hibernate automatically handle the map underneath by saving the Principals and associated AclEntry.

From re-reading the Parent-Child doc though this doesn't seem possible. There, it appears necessary to manually save Child references.

Also, another problem, is that the AclEntry (child) does not know anything about the Acl (parent), which is different from the Parent/Child example.

It seems like saving maps with complex types for keys and values is one of the more complicated things to do. Is is possible to just save a parent class and have the map it contains to be saved automatically?

thanks,

~harris