Hi

I realise that you cant mix subclass strategies, ie having both discriminators and joined subclasses. However I have a problem where I have:

1. BaseType
2. PersonType:BaseType
3. LocationType:BaseType
4. CourseType:BaseType
<Doccuments> List

Ideally I would like PersonType and LocationType to use discrimators, as it will be faster to query from one table than do the joins, and have CourseType to be a joined subclass as has the List of documents.

Is there a way to do this, the only way I can see is either have everything as a joined subclass, or to have all but CourseType to use discrimators and to have CourseType to have its own independent type. Both solutions seem less than ideal, so wondering if anyone had any better ideas.

Thanks

Hi rjtt64,

yes, you can mix inheritance strategies but, I'm afraid, not within one level. Your BaseType will define the strategy and this will be the one for its sub-classes. I guess, you will be able to reduce the number of tables down to three: one for the BaseType, one for PersonType and LocationType, and one for CourseType. Since your BaseType table is likely to contain at least the shared identifier column and the discriminator column, Hibernate will always join the BaseType table if you query one of its sub-classes.

But let me know if you find an alternative way.

CU
Froestel