This document provides an overview of NHibernate, an open source object-relational mapping framework. The presenter gives an introduction to ORM and what NHibernate is, demonstrates querying and managing relationships in NHibernate, and shows an example application built with it. The presenter emphasizes that NHibernate has a learning curve but becomes easier to use over time and is more powerful than the examples show. Resources for further information are also provided.

1. NHibernate
Open Source Object Relational Mapping (ORM)
Framework
@Ben_Hall
Ben@BenHall.me.uk
Blog.BenHall.me.uk

3. Learning Curve

4. Agenda
• Querying
• Mapping
• Relationships
• ‘Real’ application

5. What is ORM?

6. Mapping between objects and
database

7. Translates method calls into
queries

8. Objects vs Tables

9. Developers vs DBAs

11. Personal Choice

12. My choice is NHibernate

16. http://sourceforge.net/projects/nhibernate
http://teamcity.codebetter.com/overview.html

17. DEMO
QUERYING THE DATABASE

18. DEMO
CREATE, UPDATE, DELETE

19. DEMO
RELATIONSHIPS

21. The Real World

22. Testing ASP.net Web Applications
www.TestingASPnet.com

23. DEMO
WROX PIZZA

24. Sharp Architecture
http://code.google.com/p/sharp-architecture/

25. In summary...

26. Summary
• NHibernate has a learning curve
• After the initial hit, easy to continue
• A lot more powerful than I have shown today
• Fluent NHibernate over XML Mapping

27. Thank you
Ben Hall
Ben@BenHall.me.uk
Blog.BenHall.me.uk

28. Resources
• http://Blog.BenHall.me.uk
• http://www.TestingASPnet.com
• http://sourceforge.net/projects/nhibernate
• http://teamcity.codebetter.com/overview.htm
l
• http://nhforge.org
• http://www.castleproject.org/ActiveRecord/
• http://code.google.com/p/sharp-architecture/

29. Flickr Images
• http://www.flickr.com/photos/twenty_questions/2261
331590/
• http://www.flickr.com/photos/kaibara/2920616863/
• http://www.flickr.com/photos/mag3737/1914076277/
• http://www.flickr.com/photos/zen/2273186263/
• http://www.flickr.com/photos/frielp/6829509/
• http://www.flickr.com/photos/e_phots/2345645865/
• http://www.flickr.com/photos/leon_homan/28566287
78/
• http://www.wordle.net