Return the internal object factory of this application context.
Can be used to access specific functionality of the factory.
CAUTION This is just guaranteed to return an instance that is not a null reference (Nothing in Visual Basic)after the context has been refreshed at least once.
CAUTION Do not use this to post-process the object factory; singletons will already have been instantiated. Use an IObjectFactoryPostProcessor to intercept the object factory setup process before objects even get touched.