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Asked: 2026-05-10T13:49:01+00:00

I’ve been using some basic AOP style solutions for cross-cutting concerns like security, logging,

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I’ve been using some basic AOP style solutions for cross-cutting concerns like security, logging, validation, etc. My solution has revolved around Castle Windsor and DynamicProxy because I can apply everything using a Boo based DSL and keep my code clean of Attributes. I was told at the weekend to have a look at PostSharp as it’s supposed to be a ‘better’ solution. I’ve had a quick look at PostSharp, but I’ve been put off by the Attribute usage.

Has anyone tried both solutions and would care to share their experiences?

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1 Answer

  1. I only looked at castle-windsor for a short time (yet) so I can’t comment on that but I did use postsharp.

    Postsharp works by weaving at compile time. It ads a post-compile step to your build where it modifies your code. The code is compiled as if you just programmed the cross cutting concerns into you code. This is a bit more performant than runtime weaving and because of the use of attributes Postsharp is very easy to use. I think using attributes for AOP isn’t as problematic as using it for DI. But that’s just my personal taste.

    But…

    If you already use castle for dependency injection I don’t see a good reason why you shouldn’t also use it for AOP stuff. I think though the AOP at runtime is a bit slower than at compile time it’s also more powerful. AOP and DI are in my opinion related concepts so I think it’s a good idea to use one framework for both. So I’ll probably look at the castle stuff again next project I need AOP.

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