What follows is the mapping, and it is bi-directional. Article is the
parent and ArticleExtension is the 1:1 relationship, with foreign as the key
property generation policy (i.e. it takes Article's Id).
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="NHibernate.Test"
namespace="NHibernate.Test.Criteria.FetchAllProperties"
default-access="property"
default-lazy="true">
<class name="Article" table="Article">
<id name="Id" type="Int64">
<generator class="native"/>
</id>
<property name="Title" />
<property name="Description" lazy="false"/>
<set name="Comments" inverse="true" cascade="all-delete-orphan">
<key column="article_id"/>
<one-to-many class="Comment"/>
</set>
<one-to-one name="ArticleExtension" class="ArticleExtension"
cascade="all" lazy="no-proxy" />
</class>
<class name="ArticleExtension" table="ArticleExtension">
<id name="Id" type="Int64">
<generator class="foreign">
<param name="property">Article</param>
</generator>
</id>
<property name="Rating" />
<property name="Notes" lazy="true" />
<one-to-one name="Article" class="Article" constrained="true" />
</class>
<class name="Comment" table="Comment">
<id name="Id" type="Int64">
<generator class="native" />
</id>
<property name="Subject" />
<property name="Text" lazy="true"/>
<many-to-one name="Article" column="article_id"/>
</class>
</hibernate-mapping>
