AOP and code weaving

omar avatar
Posts: 569
Joined: 15-Oct-2004
# Posted on: 21-Oct-2009 21:48:17   

I just wanted to simplify communication between UI and BL. That took me to POCO objects and from FRANS's detailed thread about the issue I arrived to AOP (Aspect Oriented Programming) and code weaving (or as FRANS describes it IL manipulation).

I always felt that Security, Auditing, and even exception handling pollute the functional logic we carefully build in our BL classes. No matter what base/interface classes we try to design, the code ends up with intermixed business/infrastructure stuff (security, ...) that only makes maintenance harder and more expensive.

I wanted to start separating the security code from my functional code so AOP seemed a natural fit. Investigating around I came across PostSharp ( and Cecil (

I really like PostSharp but hoped to hear some feedback from people who have ventured along this road before me.