In this one case I think that I know what I'm doing... The DataReader would be good because in certain cases we will be pulling out a lot of data and simply displaying it in a WPF grid without applying much logic (or rather, there is a separate abstraction that applies logic). Rather than draw out a data-reader, map to entities and then have the WPF grid consume those, it would be nifty to simply pass off the DataReader directly from a query.
Why not just run SQL directly? Because I have absolutely zero desire to handle caching and concurrency manually. Oh and because this functionality has to be database agnostic. This is especially so because the domain model is completely up in the air. The user defines what the tables and columns will be during runtime and we're actually going to go and create them behind the scenes. Yes I'm not comfortable with this but there are several very good reasons why it should be this way. We're going to use the dynamic-component mappings to achieve some of this. What it means is since every "domain object" is going to be essentially an Id paired with an IDictionary it would be best to not have to worry about having these objects defined in code at all and only define them in xml where we can make changes by modifying the underlying mapping files in code and rebuilding the session factory. Yes this isn't quite what NH was meant for, but I'm willing to make the investment to bend it to my will if I can get caching, concurrency management, and db-agnosticism for free. On Mar 5, 4:53 pm, "Cesar Sanz" <[email protected]> wrote: > Why do you need the DataReader? > Is it not better to utilize Entities? > > slts > > > > ----- Original Message ----- > From: "George Mauer" <[email protected]> > To: "nhusers" <[email protected]> > Sent: Friday, March 05, 2010 2:41 PM > Subject: [nhusers] Is it possible to get at the underlying > DataReader/DataSet? > > > Hi, > > I would like to get at the underlying DataReader or DataSet that > > NHibernate uses to populate its entities. Ideally I would like to be > > able to do something like this: > > > DataReader customersReader = session.CreateQuery("from > > DynamicCustomers").DataReader(); > > > Is this possible? > > > It would be better if I didn't even have an actual DynamicCustomers > > class, only the hbm mappings. > > > I'm not above forking the NH source to achieve this but I'm hoping > > that there's an extensibility hook I can use. Can anyone point me > > down the right path? > > > -- > > You received this message because you are subscribed to the Google Groups > > "nhusers" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]. > > For more options, visit this group at > >http://groups.google.com/group/nhusers?hl=en. -- You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nhusers?hl=en.
