I have a parent child relationship

A (1..1) --> (0..1)B

Class A
{
private B b;
}


I dont want a B_ID reference in the 'A' DB table. just the A_ID FK in the 'B' table.

In the mapping of B, I have:

<many-to-one name="A' column="A_ID" class="A" not-null="true"/>
that takes care of the ownership of B (and the FK from the B back to A)

Is it possible to somehow have class A mapped, and only call the setB( B b ) method if there is an entry in table B with the ID of A, otherwise the object reference in A will remain null?

Ive seen the examples in Hibernate in Action as well as in the ref guide, but they all have a Set<B> mapped in class A


Nick

Use <one-to-one property-ref/>. There is an example in the reference manual, and in HiA

Thanks Gavin.

Do you have a page ref for HiA or even a chapter?

Nick