[jboss-user] [JBoss Seam] - Re: AspectJ/Jboss Seam integration ?

jacob.orshalick do-not-reply at jboss.com
Wed Oct 31 10:51:05 EDT 2007


"jayzaw" wrote : a) for using reflection, I have to be able to reference the class' name. Unfortunately, "this" - within an aspect's advice means a reference to the aspect or the advice. But not the class in which the operation currently executes. 

This is more of an AspectJ question, but yes, you will have to use the reflection utilities provided by AspectJ to retrieve the class name.  Something like:


  | thisJoinPointStaticPart.getSignature().getDeclaringType().getName();
  | 

"jayzaw" wrote : 
  | b1) AspectJ and Jboss Seam components will have conflicts (Seam uses annotations and maybe other technologies which might conflict with AspectJ)
  | 

There should not be any conflicts as far as I know.  I used annotations with an AspectJ implementation in a previous project and there where not any issues (of course I was using Spring/Hibernate so I could not speak to Seam specifically).  The only time annotations should come into the picture is if you want to act on the annotation within your aspect.

"jayzaw" wrote : b2) how to integrate AspectJ in a Jboss Seam project - when trying to create an aspect in my Jboss Seam project, it complains that this is not an AspectJ project 

Hmm... sounds like this is your IDE complaining?  You should be able to add an aspect without any issues, simply use ajc for compilation.

"jayzaw" wrote : b3) what I should look out for when deploying the project (the aspects should be "weaved" into the code at precompile- or compile-time. 

Yes, simply make sure to use ajc for compilation and the classes become plain-old Java byte code.  Of course make sure you have the appropriate AspectJ libraries available at run-time for calls to the AspectJ APIs (reflection calls, etc).

Hope that helps.

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