Introduction to ORM Patterns with Code Samples in NHibernate

Mohamed Meligy

Who Am I ?

• 2005: Blogging, http://geekswithblogs.net/Mohamed, http://weblogs.asp.net/meligy, http://GuruStop.NET

• 2006: SilverKey Demo Day 1• 2007: SilverKey Demo Day 2• 2007: Several dotNETwork Gatherings• 2008: ITWorx Cutting Edge Club• 2008: Several dotNETwork Gatherings• 2009: doeNETwork Code Camp`09• Worked in SilverKey, Raya Experts Team• Currently Working in Abu Dhabi• 2010: doeNETwork Code Camp`10

THIS IS JUST OPEN TALK SESSION!

This is not to recommend Nhibernate or else…

Topics To Discuss

• ORMs!• Model First and Mapping Techniques• POCO and Active Record• Loading Techniques

Classic ApplicationsDatabase• Persistence (Tables,..)• Data Objects (SPROCs, etc…)

SQL Helper Classes

Create / Read / Update / delete

Business Logic (queries, conditions)

UI

http://tinyurl.com/meligy-orms

Database

ORM Layer

ORM Calling Code

Business Logic

UI

The Case With ORM

ORM

objects relational

http://www.kevinwilliampang.com/post/How-Fanboys-See-NET-ORMs.aspx

POCO

THE MAPPING

DEMO

Where to go…• ORM

– http://weblogs.asp.net/fbouma• http://llblgen.com

– http://en.wikipedia.org/wiki/Object-relational_mapping

• NHibernate– http://nhforge.org

• http://nhforge.org/blogs/nhibernate• http://nhforge.org/doc/nh/en/index.html

– http://blogs.hibernatingrhinos.com– http://sharparchitecture.net– http://groups.google.com/group/nhusers

• http://ayende.com• http://tekpub.com• http://dimecasts.net• http://www.slideshare.net/pagsousa/poeaa-by-example• http://GuruStop.NET

– Eng.Meligy@Gmail.com