NHibernate Futures returns Proxy sometimes, Entity others

Question

I have a database fetch that handles a full object graph using multiple future queries. It looks something like this (class names have been changed to protect the innocent): ``` Foo foo; var fooFuture = Session.QueryOver() .Where(f => f.Id == id) .Future(); // load up the Blah collection for the Foo Session.QueryOver() .Fetch(f => f.Blahs).Eager .Where(f => f.Id == id) .Future(); // do a separate query for the BlahOptions -- this is needed // because if we did a Join and Join off of Foo, we'd get duplicate Blah // results and that's not good Session.QueryOver() .Fetch(b => b.Options).Eager .Where(b => b.Foo.Id == id) .Future(); // load up the Attributes for the Foo Session.QueryOver() .Fetch(f => f.Attributes).Eager .Where(f => f.Id == id) .Future(); foo = fooFuture.SingleOrDefault(); ``` NOTE: I can implement this in NHibernate LINQ, but the behavior remains the same. The weirdness: `foo` will sometimes be of type `FooNamespace.Foo` (the correct, concrete type) a…

Accepted Answer

The reason why this would generally happen is because a Foo is loaded elsewhere in the session prior to this point and you are getting the proxy created on that previous query.

I have had some success with the following

```
var fooProxy = foo as INHibernateProxy;
if(fooProxy != null) {
   var context= Session.GetSessionImplementation().PersistenceContext;
   foo = context.Unproxy(fooProxy);
}
```

Though, In most cases the process of serialization seems to convert the Proxy to the correct type.

NHibernate Futures returns Proxy sometimes, Entity others

Solution

Problem