Subclass.hbm.xml

<?xml version="1.0"?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" default-lazy="false">
	<class 
		name="NHibernate.Test.Subclass.SubclassBase, NHibernate.Test" 
		table="one_tab" 
		discriminator-value="SUPER"	
	>
		<id 
			name="Id" 
			type="Int32" 
			unsaved-value="0" 
			column="class_id" 
			access="nosetter.camelcase-underscore"
		>
			<generator class="native" />
		</id>
		
		<discriminator column="disc_column" type="String" />
		
		<property name="TestLong" column="test_long" type="Int64" />
		<property name="TestString" column="test_string" type="String" />
		<property name="TestDateTime" column="test_date_time" type="DateTime" />
		
		<subclass 
			name="NHibernate.Test.Subclass.SubclassOne, NHibernate.Test" 
			discriminator-value="SUB"
		>
			<property name="OneTestLong" column="one_test_long" type="Int64" />
		</subclass>
	</class>
	
</hibernate-mapping>