Hi,
I have a problem with cascaded insert in the following example.

//------------------ Mapping - parent ---------------------------
<class
name="ParentImpl"
table="Parent"
dynamic-update="true"
dynamic-insert="true"
>

<id
name="id"
column="Parent_Id"
type="string"
>
<generator class="assigned">
</generator>
</id>

<bag
name="children"
table="Children"
lazy="false"
inverse="true"
cascade="all"
>

<key
column="Parent_Id"
/>

<one-to-many
class="ChildImpl"
/>
</bag>


//----------------------- Mapping - child --------------------
<class
name="ChildImpl"
table="Child"
dynamic-update="false"
dynamic-insert="false"
>

<id
name="id"
column="id"
type="string"
>
<generator class="assigned">
</generator>
</id>

<many-to-one
name="parent"
class="ParentImpl"
cascade="all"
outer-join="auto"
update="true"
insert="true"
column="Parent_Id"
not-null="true"
/>

//--------------------------------
In the Hibernate code, I have something like the following:
....
defaultParent = createParent("Kitzrow's");

Child diff = createChild("Diff");

...
Session session = persistLayerInstance.createSession();

persistLayerInstance.saveSession(session, defaultParent);

diff.setParent(defaultParent);
defaultParent.add(diff);

session.flush();
session.connection.commit();
...........

//---------------------------------------------
Now, Hibernate creates an "Insert" for the parent, but for the child it tries to do an "Update". Since the child row does not exist, it throws an error.

Now, I am trying to understand why is Hibernate doing an "update" when it is supposed to do an "insert". Any insights much appreciated...
Thanks,
Madhan.

Please read the documentation about unsaved-value. NOtice that for an assigned id, you would need to use unsaved-value="any". This is a FAQ.

Thanks a lot! I did read it before, but did not make any sense to me. Now, I understand. Thanks again.
Madhan.

Great :) Good Luck!