NHibernate 4.0.1.GA released with Firebird fixes

NHibernate 4.0.1 General Availability is now available for download from Sourceforge and Nuget.

http://sourceforge.net/projects/nhibernate/?source=directory

This includes fixes for regressions in NH 4.0.0, and some fixes for mapping-by-code and Firebird issues.
Please see the full release notes for more information:
https://github.com/nhibernate/nhibernate-core/blob/4.0.1.GA/releasenotes.txt

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Dozens of new options for Firebird and .NET Framework

Hey!

If you have ever worked with Firebird or Interbase using the standard .NET provider for OLE DB (System.Data.OleDb), you will have likely encountered issues like this:

  • The necessity to add ALL parameters manually.
  • Even though the OLE DB provider supports parameter generation for commands, the .NET provider doesn’t use it, so you as the programmer must do that work on your own.
  • The lack of support for named parameters. Although they actually exist, using them in reality requires a whole set of complex manipulations (the steps needed to add a parameter to a collection, etc.).
  • The impossibility of using multiple DataReader objects at the same time (Multiple Active Result Sets).
  • No execution of SQL scripts which contain several SQL expressions per command. This list of difficulties a .NET developer has to deal with is far from complete. Now it’s all different in a fundamentally new .NET Data Provider for OLE DB

IBProvider Team

Firebird driver

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FBCon 2009 München – #.NET + Firebird will be there

Jiří {x2} Činčura wrote on his blog

You can find info about conference at firebird-conference.com. I’ll be speaking there too, hence if you’re interested in Firebird and .NET you should definitely come. Every day I have one session. I’ll be covering new (2.5+) protocol implementation in .NET client for Firebird 2.1, Entity Framework support (also new in 2.5) and finally you’ll see how to create Windows phone (formely PocketPC, …) application and accessing Firebird database.

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New articles about Entity Framework and Firebird

You can see two new blog posts about Entity Framework : OnValidate-Like Validation

Yesterday, while doing Entity Framework training, I got a good question. LINQ to SQL has a nice event called OnValidate, where you can validate your data. But Entity Framework classes don’t. As the only one good point to do the validation of entities in Entity Framework is during in SaveChanges in SavingChanges event, we have to utilize this event and build validation there.

You may wonder how to use usefull coalesce operator in Firebird Entity Framework.

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