Check
http://sessionfactory.blogspot.com/2010/08/hacking-lazy-loaded-inheritance.html
Diego
On Sat, Dec 18, 2010 at 04:00, Berryl Hesh <[email protected]> wrote:
> I suppose the mapping is not the issue here; since if I set lazy="no-
> proxy" then the typing is as expected.
>
> But is that my only choice here?
>
> I thought that either accessing a property of the proxied object or
> using NHibernateUtil.Initialize(object) would also get the correct
> type.
>
> ~ Berryl
>
> On Dec 17, 4:19 pm, Berryl Hesh <[email protected]> wrote:
> > I have an extension query that relies on an object knowing what
> > subclass it is. It is a collection of proxies initially, and I can get
> > at the base type of them but not the subclass. I'm not sure if I have
> > a mapping problem or a proxy problem.
> >
> > The mappings and a test that exposes the problem are below. How can I
> > get the subclass info from the CastleProxy?
> >
> > Cheers,
> > Berryl
> >
> > Mappings
> > ============
> > Allocation has an ActivitySubject
> > ============
> > <hibernate-...>
> >
> > <class name="..." table="Allocations" >
> >
> > <id name="Id" unsaved-value="0">
> > <column name="AllocationId" />
> > <generator class="hilo" />
> > </id>
> >
> > <many-to-one class="ActivitySubject"
> > foreign-key="ActivityBase_FK" name="ActivitySubject">
> > <column name="ActivitySubjectId" unique-key="DomainSignature" />
> > </many-to-one>
> >
> > ....
> >
> > </class>
> >
> > </hibernate-mapping>
> >
> > ================
> > ActivitySubject is a base class
> > ================
> >
> > <hibernate-mapping ... >
> >
> > <class name="ActivitySubject" table="ActivitySubjects" discriminator-
> > value="BASE_CLASS">
> >
> > <id name="Id" unsaved-value="0">
> > <column name="ActivitySubjectId" />
> > <generator class="hilo" />
> > </id>
> >
> > <discriminator column="ActivitySubjectType" type="System.String" /
> >
> >
> >
> > <property name="Description" length="75" not-null="true" />
> > <property name="BusinessId" length="25" not-null="true" />
> >
> > <subclass name="Account" discriminator-value="ACCOUNT">
> >
> > ....
> >
> > </subclass>
> >
> > <subclass name="Project" discriminator-value="PROJECT">
> >
> > ...
> >
> > </subclass>
> >
> > </class>
> >
> > </hibernate-mapping>
> >
> > ==================
> > example of problem
> > ==================
> >
> > [Test]
> > public void
> > Allocation_ActivitySubject_SubclassTypeCanBeKnown()
> > {
> > _session.Clear();
> >
> > Allocation found;
> > using (var tx = _session.BeginTransaction())
> > {
> > found =
> > _session.Get<Allocation>(_someTransientAllocation.Id);
> > Assert.That(found.ActivitySubject,
> > Is.EqualTo(_someTransientAllocation.ActivitySubject));
> > Assert.That(found.ResourceSubject,
> > Is.EqualTo(_someTransientAllocation.ResourceSubject));
> > Assert.That(found.TimeRange,
> > Is.EqualTo(_someTransientAllocation.TimeRange));
> >
> > NHibernateUtil.Initialize(found.ActivitySubject);
> >
> > // ok
> > Assert.That(found.ActivitySubject,
> > Is.InstanceOf<ActivitySubject>());
> >
> > // *** not ok
> > Assert.That(found.ActivitySubject,
> > Is.InstanceOf<Project>());
> >
> > tx.Commit();
> > }
> > }
> >
> > Error info:
> > Expected: instance of <Project>
> > But was: <Castle.Proxies.ActivitySubjectProxy>
>
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