Have you seen my more recent CQRS posts where I discuss simpler query options?

public class SubjectDAO : AbstractDAO, ISubjectDAO
{
public SubjectDAO(IRepository queries) : base(queries) { }

public Subject[] GetSubjectsBy(Status status)
{
ISubject_SelectByStatus selectSubjectsByStatus = Queries.Find();

return selectSubjectsByStatus.Execute(status == Status.Active ? true : false);
}
}

The SubjectDAO (in order to retrieve subjects by status) executes a ISubject_SelectByStatus (which in this particular example is a wrapper to a stored procedure) that receives the enumeration State by parameter, and behind the scenes opens a connection, gets an active transaction (or starts a new one), creates the paremeter(s) with the parameter received from the DAO and executes the query, converting the IDataReader to a Model “Subject” entity with a Converter class injected with IoC to the ISubject_SelectByStatus.

The nice thing about this example is that the query wrapper (the ISubject_SelectByStatus) is autogenerated with a home-made code generator, that “reads” the stored procedures and generate typed interfaces to be accessed from the DAOs.

Thanks