Hey,

How do I map(reference) the non-primary unique key of a table (e.g A) as a foreign key through the mapping files?

Most of the documentation I found was for referencing the primary key. Could not find it clearly mentioned anywhere.

Any help would be appreciated.

Thx.

YOu need to define set for your foreignekey object as follows
by defining many to one relationship.

see below sample:
<many-to-one
name="auditReadings"
class="com.wipro.domain.AuditReadings"
cascade="none"
outer-join="false"
update="true"
insert="true"
column="AUDIT_READING_KEY"
/>