I have a simple application in which there is a Hibernate class for each table.

To make the application easier to maintain I want to extend the Hibernate classes and put the application specific code in the subclasses. Ideally I would like to make the Hibernate classes abstract.

When I add application specific code I will modify the subclass and not the Hibernate class. This way I can regenerate (middlegen) the Hibernate class without overwriting any application specific code.

Each Hibernate class will be extended by one and only one subclass so issues related to polymorphism and things of that nature are not an issue.

Is there an easy way to accomplish this?

Thanks,

Matt

hibernate.subclass

I believe you put me on the right track but I'm still running into problems. I added the following bolded code to my .hbm.xml file

<class
name="gov.epa.otaq.verify.hibernate.McCert"
table="MC_CERT" discriminator-value="conditional"
select-before-update="true"
>

......

<subclass name="gov.epa.otaq.verify.hibernate.McCertV"
discriminator-value="non-conditional"
dynamic-update="true" dynamic-insert="true"/>

.......
</class>

When I run the following code I get the error "Could not execute JDBC batch update" :




Am I missing something ?

Thanks,
Matt

try getting rid of the discriminator-value entry

and dynamic-update="false"
dynamic-insert'"=false"

Just a shot.