Hi all. I'm having great difficulty trying to map a ManyToOne relationship between 2 classes, when one class has a composite primary key. I'm running JBoss 5.0 and Seam.
I have a Form class that has many Rules. If at first I ignore the composite key and just use 1 field as the key, all is fine (though of course I get multiple matches instead of one). The code looks something like this:
Now if I uncomment the 2nd @JoinColumn annotation, I get the error:
org.hibernate.AnnotationException: A Foreign key refering xxx.yyy.Form from xxx.yyy.Rule has the wrong number of column. should be 1
If I create a PK class FormKey.java to hold the form name & version, I then don't know how to construct the annotations in Rule, since I'm no longer joining columns directly, but mapping to a class Form.key instead.