I've scoured the web and haven't found a reference on how to do this.

I'd like to intercept an entity after it's been hydrated by nhibernate and modify the IsDirty flag of the entity.

My problem is I have an entity and in each setter I set the dirty flag for the entity. This allows presenter objects to enable buttons on the ui to let the user know that they can Save the object.

The only other way to do this would be to implement ILifecycle right? And that is discourage so it doesn't seem like the solution.

Usually when nobody replies it's because it cannot be done... is this where we are at?

But if you implement the IInterceptor, it gives you those kinds of hooks.. why is that not what you want?

This is exactly my situation too. IInterceptor does not help because it doesn't offer a PostLoad event where you can access the hydrated entity. I only see two solutions to this problem: 1) have your entities implement ILifeCycle 2) in mappings tell NH to access the class fields instead of properties.

I didn't like any of these solutions so I choose to set the flag to false manually after the load. For me it works because I have a service layer that can do this before returning the objects to clients. You could do this also in a Dao base class.

I understand that Hibernate 3.0 gives you the possibility to handle the PostLoad event by offering a new system of events. Maybe we'll have this in NH 1.2.0.

Anyone, please correct me if I'm wrong (I still hope there is a more ellegant solution...)

Oh yes, you guys are right. This is indeed a problem.
I use the instantiate hook to set a boolean (but it's not hydrated yet), so later on, I will call a method on each object that checks for this bool and act upon it.

Sergey is always in for implementing h 3.0 things, so you might want to make an issue in jira and point to the h 3 implementation. I would vote for it ;-)

This is exactly what I need, any news on this?

Me too I could use this... any news? What about the 1.2 version?

I had a need for OnPreLoad and OnPostLoad in both ILifeCycle and IInterceptor. I sent the patch to jira.

http://jira.nhibernate.org/browse/NH-970[/url]

I followed the above link, downloaded and compiled against the NHibernate 1.2GA but the OnPostLoad doesn't seem to be doing anything, is there something that I miss?

Cheers
Tien

Please disregard the above as I found the answer myself

Cheers