ReadOnly.hbm.xml

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


  <class name="ReadOnly" batch-size="3">
    <cache usage="read-only" />
    <id name="Id" unsaved-value="0">
      <generator class="native"/>
    </id>
    <property name="Name" />

    <set name="Items" cascade="all-delete-orphan" batch-size="5" inverse="true">
      <cache usage="nonstrict-read-write"/>
      <key column="ParentId" not-null="true" />
      <one-to-many class="ReadOnlyItem" />
    </set>
  </class>

  <class name="ReadOnlyItem" batch-size="4">
    <cache usage="read-only" />
    <id name="Id" unsaved-value="0">
      <generator class="native"/>
    </id>
    <many-to-one name="Parent" column="ParentId" class="ReadOnly" not-null="true" />
  </class>


</hibernate-mapping>