<!-- <many-to-one cascade="all-delete-orphan" unique="true" name="refer" column="refer" access="field" not-null="true" />
-->
</union-subclass>
+
+<!-- Reader relation: Study to User
+ -->
+ <union-subclass name="org.splat.dal.bo.som.ReaderRelation" extends="org.splat.dal.bo.kernel.Relation" table="reader_rel">
+ <many-to-one name="refer" column="refer" access="field" not-null="true" />
+ </union-subclass>
<!-- ValidationCycle relation: Study to ValidationCycle
-->