Hi,

I want to mix multiple inheritance strategies in a single inheritance graph and can't figure how to do this. I have:

class Item {
...
}

class Product extends Item {
...
}

class ClothingProduct extends Product {
...
}

and would like Product to be a JOINED-subclass while ClothingProduct uses SINGLE_TABLE mode sharing the table with Product. I can't figure out how to denote this correctly. It seems the InheritanceType.JOINED is automatically mapped to all subclasses. Is mixing InheritanceType not allowed when using annotations?

... I am using Java 5 annotations (or trying to)

a Hint
A joined subclass is equivalent to a subclass having a secondary table.

Sorry I think I didn't make myself clear enough:
I am using:

Hibernate 3.05
Annotations beta 2
MySQL 4.0 with InnoDB


and would expect this:

@Entity
public class Item {
...
}

@Entity
@Inheritance(strategy = InheritanceType.JOINED)
public class Product extends Item {
...
}

@Entity
@Inheritance(strategy = InheritanceType.SINGLE_TABLE)
SpecialProduct extends Product {
...
}

to generate 2 tables (item and product) but it also generates a specialproduct table. Now the question is: How do I make SpecialProduct share the table with Product while keeping Product a joined subclass of Item?

Thanks for your time

Krow

I understood you correctly. As I already said, you can achieve that using a SINGLE_TABLE strategy and appropriatly use the notion of @SecondaryTable. I can't say much because it's hard to explain on a forum.
Check this material too http://www.hibernate.org/hib_docs/v3/reference/en/html_single/#inheritance-mixing-tableperclass-tablepersubclass