Will the following NHibernate interface mapping work?
- by Ben Aston
I'd like to program against interfaces when working with NHibernate due to type dependency issues within the solution I am working with.
SO questions such as this indicate it is possible.
I have an ILocation interface and a concrete Location type. Will the following work?
HBM mapping:
<class name="ILocation" abstract="true" table="ILocation">
<id name="Id" type="System.Guid" unsaved-value="00000000-0000-0000-0000-000000000000">
<column name="LocationId" />
<generator class="guid" />
</id>
<union-subclass table="Location" name="Location">
<property name="Name" type="System.String"/>
</union-subclass>
</class>
Detached criteria usage using the interface:
var criteria = DetachedCriteria.For<ILocation>().Add(Restrictions.Eq("Name", "blah"));
var locations = criteria.GetExecutableCriteria(UoW.Session).List<ILocation>();
Are there any issues with not using the hilo ID generator and/or with this approach in general?
