User.hbm.xml

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping 
	xmlns="urn:nhibernate-mapping-2.2" 
	assembly="NHibernate.Test" 
	namespace="NHibernate.Test.Component.Basic">

	<class name="User" table="T_USER">
		<id name="UserName"/>
		<timestamp name="LastModified"/>
		<property name="Password" not-null="true" optimistic-lock="false"/>
		<component name="Person">
			<property name="Name" update="false" not-null="true"/>
			<property name="Dob" update="false" not-null="true"/>
			<property name="Address"/>
			<property name="PreviousAddress" insert="false"/>
			<property name="Yob" formula="year(dob)"/>
<!--
			<property name="heightInches">
				<column name="height_centimeters"
					not-null="true" 
					read="height_centimeters / 2.54" 
					write="? * 2.54"/>
			</property>	
-->		
			<property name="CurrentAddress"
				column="address"
				insert="false"
				update="false"/>
		</component>
	</class>

	<class name="Employee" table="T_EMP">
		<id name="Id" type="long" column="ID">
			<generator class="increment"/>
		</id>
		<property name="HireDate" type="date" column="HIRE_DATE"/>
		<component name="Person">
			<property name="Name" update="false" not-null="true"/>
			<property name="Dob" update="false" not-null="true"/>
		</component>
		<component name="OptionalComponent">
			<property name="Value1" not-null="false"/>
			<property name="Value2" not-null="false"/>
		</component>
		<set name="DirectReports" cascade="all-delete-orphan,merge" lazy="true">
			<key column="PARENT_ID" />
			<one-to-many class="Employee"/>
		</set>
	</class>

	<query name="userNameIn"><![CDATA[from User where Person.Name in (:nameList) or UserName in (:nameList)]]></query>

</hibernate-mapping>