Hi, I need some help using HQL to query all objects that implement a
specific interface.
I have the following classes:
public class CommonClass
public interface IDoSomething
public class ClassA : CommonClass, IDoSomething
public class ClassB : CommonClass, IDoSomething
public class ClassC : CommonClass
I'm mapping this set of classes using table-per-subclass strategy.
Querying using Criteria API works as expected:
var results =
session.CreateCriteria(typeof(IDoSomething)).List<IDoSomething>();
But the following hql query does not work at all:
var results = session.CreateQuery("from
Namespace.IDoSomething").List<IDoSomething>();
it throws this exception:
NHibernate.QueryException : undefined alias or unknown mapping: NHibernate
[from Namespace.IDoSomething]
Can someone point me what I'm missing here?
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