Order.hbm.xml

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" 
									 namespace="NHibernate.DomainModel.Northwind.Entities" assembly="NHibernate.DomainModel">

	<class name="Order" table="Orders">
		<id name="OrderId" column="OrderId" type="int" unsaved-value="-1" 
				access="field.camelcase-underscore">
			<generator class="assigned" />
		</id>

		<many-to-one name="Customer" class="Customer" column="CustomerId" not-null="true"
								 access="field.camelcase-underscore" fetch="select"/>

		<many-to-one name="Employee" class="Employee" column="EmployeeId" 
								 access="field.camelcase-underscore" fetch="select"/>

		<property name="OrderDate" column="OrderDate" type="DateTime"
							access="field.camelcase-underscore"/>


		<property name="RequiredOrderDate" formula="OrderDate" insert="false" update="false" />

		<property name="RequiredDate" column="RequiredDate" type="DateTime"
							access="field.camelcase-underscore"/>

		<property name="ShippingDate" column="ShippedDate" type="DateTime"
							access="field.camelcase-underscore"/>

		<many-to-one name="Shipper" class="Shipper" column="ShipVia"
								 access="field.camelcase-underscore" fetch="select"/>

		<property name="Freight" column="Freight" type="Decimal"
							access="field.camelcase-underscore"/>

		<property name="ShippedTo" column="ShipName" type="string" length="40"
							access="field.camelcase-underscore"/>
		
		<component name="ShippingAddress" class="NHibernate.DomainModel.Northwind.Entities.Address, NHibernate.DomainModel"
							 access="field.camelcase-underscore" insert="true" update="true">
			
			<property name="Street" column="ShipAddress" type="string" length="60"
								access="field.camelcase-underscore"/>

			<property name="City" column="ShipCity" type="string" length="15"
								access="field.camelcase-underscore"/>

			<property name="Region" column="ShipRegion" type="string" length="15"
								access="field.camelcase-underscore"/>

			<property name="PostalCode" column="ShipPostalCode" type="string" length="10"
								access="field.camelcase-underscore"/>

			<property name="Country" column="ShipCountry" type="string" length="15"
								access="field.camelcase-underscore"/>
			
		</component>

		<set name="OrderLines" lazy="true" access="field.camelcase-underscore"
				 cascade="all-delete-orphan" inverse="true">
			<key column="OrderId"/>
			<one-to-many class="OrderLine"/>
		</set>

    <set name="ProductIds" table="OrderLines">
      <key column="OrderId" />
      <element column="ProductId" type="Int32" />
    </set>
		
	</class>
	
</hibernate-mapping>