Wrong mapping. You are trying to implement a *bidirectional one-to-one (foreign key association)* but the mapping-pattern is not corrected implemented.
After raise the question to the nhusers group and implement the correct mapping-pattern you can come back with the issue if it is already there. On Fri, Sep 23, 2011 at 1:52 PM, Stuart Carnie <[email protected]>wrote: > 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> > > -- Fabio Maulo
