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Re: [aspectj-users] adding and working with local variables using aspect J
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Hi
Arvind,
AspectJ does not support crosscutting on local variables. Ther are only few works related to them. You can check these works:
Énfasis, a framework that uses bytecode instrumentation to implement a basic model for crosscutting on local variables. Currently, this framework has been complementing with a layer to provide a specific domain language for defining aspects related to local variables.
http://portal.acm.org/citation.cfm?id=1363752Bugdel, a tool based on AOP for debugging. This tool uses local variables.
http://www.csg.is.titech.ac.jp/projects/bugdel/index-e.shtml
Fine-grained generic aspects, an approach that uses Logic Meta-Variables
http://www.eecs.ucf.edu/FOAL/papers-2006/RhoKnieselAppeltauer.pdf
There are other approaches, but (from my knowledge) without implementations. Also note that local variable crosscutting is extremely fragile.
Best regards
Ulises
On Sun, Mar 14, 2010 at 4:19 AM, Arvind Krishnaswamy
<k_arvind_shankar@xxxxxxxxx> wrote:
Hello All,
I am very new to AOP and aspectj. I have a little background in bytecode instrumentation where I am freely able to intercept classes during load time and add some local variables to selected methods to maintain my instrumentation state during method execution. I know there is something called inter type declaration in aspectj using which I can declare fields/methods of classes that I know the names of. I really need to be able to maintain some working state inside selected methods using local variables (so that I don't have to worry about threads overwriting each others' state). Can I accomplish this using aspectJ and if so, how? This
would be very helpful. I searched the forums and the net and there is surprisingly less discussion around this topic. Also, how can I add members to classes if I don't know their names in advance (while intercepting them during load time). Please help. Thanks in advance
-Arvind |
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