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NHibernate: utilizzare lo 0 per rappresentare l’assenza di entità

Quando si ha a che fare con database legacy, potrebbe saltar fuori la necessità di non inserire nel database valori nulli per le relazioni many-to-one nulle, ma bensì il valore zero. Questo post su NHForge, discute la problematica e definisce una soluzione. Per chi avesse bisogno della versione in VB...

Posted to ExternalBlogs (Weblog) by Anonymous on 22 Feb 2011
NH Day: annullamento iscrizione ?

Causa spostamento matrimonio e del relativo viaggio di nozze, non potrò partecipare al prossimo NH Day (mannaggia alla pupazza!!!). Devo annullare semplicemente l'iscrizione o è possibile girare il posto a qualcun altro? Qualcuno mi sa dare informazioni?

Posted to ExternalBlogs (Weblog) by Anonymous on 23 Aug 2010
NHibernate 3 Alpha 2

Le ferie sono già un ricordo per me, ma almeno qualche buona notizia c'e'! Durante questo periodo di inattività è stata rilasciata l'alpha 2 di NHibernate 3. Qui il link per il download: http://sourceforge.net/projects/nhibernate/files/

Posted to ExternalBlogs (Weblog) by Anonymous on 18 Aug 2010
NHDay: Iscrizione completata!

Stavo quasi per scordarmi, ma fortunatamente i posti sono ancora disponibili e l'iscrizione al prossimo NHDay è stata fatta! Ci si vede li per chi ci sarà!

Posted to ExternalBlogs (Weblog) by Anonymous on 15 Jun 2010
Linq to NHibernate: how to query on a property without setter

Recently I’ve started to play with Linq to NHibernate and I have to say it work pretty well for the scenarios I’m facing. It also helped me to ‘re-learn’ some things on NHibernate I usually forget. Let’s consider the case in which we have a class that have some properties without setters, the usual way...

Posted to ExternalBlogs (Weblog) by Anonymous on 22 Dec 2009
Show NHibernate query in the trace of asp.net pages

When you use NHibernate and asp.net one of the most interesting stuff is looking at sql generated for each page call. While NHProf is the best tool to accomplish this task, it is interesting to trace issued sql queries using asp.net trace engine. To accomplish this task is really straightforward thanks...

Posted to ExternalBlogs (Weblog) by Anonymous on 13 Oct 2009
NHibernate ICriteria and filters

I have a project where I need to access tables with millions of rows, the project was born without nhibernate so the database was not designed with ORM in mind. I decided to improve performances with an Indexed view that materialized a join between five tables, wrapped with another view that does a left...

Posted to ExternalBlogs (Weblog) by Anonymous on 13 Oct 2009
Theta join in HQL – join with unrelated entities

NHibernate HQL language is really powerful, and work in many scenario. Suppose you have those two classes. Action is an object capable of executing something, while ActionLog stores the result of the execution of an action. There is no direct relation between the two, so in ActionLog we have not a...

Posted to ExternalBlogs (Weblog) by Anonymous on 04 Sep 2009
Browse NHibernate metadata to validate property Length

One of the most basic validation rule for Entities that are stored in databases, is to be sure that String Properties are not too long for the corresponding field in database. There are a lot of validation framework over there, most of them using attributes to specify constraints on properties or fields...

Posted to ExternalBlogs (Weblog) by Anonymous on 23 Aug 2009
Manage Scope or Execution Context of Repository

In a project I’m working with Guardian, we are using NHibernate behind a Repository Pattern. Despite the question if is good or not good to shield the session behind a Repository,we encountered a classic problem. The software is structured as service, we use Castle Nhibernate Facility and Wcf Integration...

Posted to ExternalBlogs (Weblog) by Anonymous on 07 Aug 2009

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