Hi There,

I've searched the documentation and forum but can not find an answer to my particular question.

I have a Product object which contains a list of Software Versions (each product can contain may software versions, each software version is for just one product).

My Software Version table has an autogenerated (sequence) id field and a not null foreign key to the Product Id.

I do NOT want my SoftwareVersion object to contain a link to the Product, it contains no reference at all to the Product.
I only want my Product Object to have a list of software versions.

When I try to save the Product (with a new SoftwareVersion added to the list) it complains that it can't insert a null into the product_id field of the SoftwareVersion table.

How do I get Hibernate to use the product_id from the Product object.

The only relationship between the product and software version is in my product.hbm.xml file as follows:
...
<list name="softwareVersionList" cascade="save-update" lazy="false">
<key column="product_id"/>
<index column="product_id"/>
<one-to-many class="nz.co.vodafone.phalanx.model.SoftwareVersion"/>
</list>

Your urgent assistance with this would be much appreciated.

Thanks

Craig.

Because of the fact that Hibernate objects are not assumed to be always under the control of the container, this is only possible with -composite-elements-, not with associations.

Just make the association bi-directional.

Hi Gavin,

Is it possible to make it bi-directional without explicitly having a Product object/id within the SoftwareVersion object?

If not then I guess I'll just have to add the ProductId to the SoftwareVersion object and let our designer know why I've had to change the domain model.

Cheers

Craig