Comments on: Clean code: Register additional event listeners in NHibernate

By: mazhou blog

mazhou blog — Tue, 29 Nov 2011 04:01:15 +0000

mazhou blog…

[...]Clean code: Register additional event listeners in NHibernate « Valeriu Caraulean[...]…

By: Yong Bursey

Yong Bursey — Tue, 01 Feb 2011 02:15:27 +0000

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By: felipe

felipe — Tue, 10 Nov 2009 15:10:47 +0000

clean code all

By: Ricardo Peres

Ricardo Peres — Wed, 09 Sep 2009 10:54:37 +0000

Thanks for your reply!
Yes, I know what you mean, and I wouldn’t do it in real-life scenarios, I just wanted find out if it can be done. I came up to interceptors, and the IInterceptor.OnLoad event, but I can’t cancel it…

By: Valeriu Caraulean

Valeriu Caraulean — Wed, 09 Sep 2009 07:46:31 +0000

I’m not sure you can achieve that by using an event listener.

What about “removing” items from a list before making it available to the rest of application I think it’s not a good idea: you’re loading thousands of rows from database to filter only hundreds of it? Why don’t do that directly in database?
From the top of my mind you can use two things:
– using filters & setting them to filter rows
– enrich your queries, so that you’ll get back from database only relevant rows
For second approach take a look how it’s done in Rhino.Security (his API). It’s a great example how you can create a flexible security infrastructure with NHibernate.

By: Ricardo Peres

Ricardo Peres — Tue, 08 Sep 2009 18:06:00 +0000

Interesting. Is it possible to cancel the default processing using an event listener?
For example, suppose I’m loading a list of entities, but I want to remove some of them from the list, for example, because the current user is not authorized to access them. Is this possible?