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Re: [aspectj-users] How to obtain the crosscutting relationship information between an advice and base code? 
Unfortunately that information is not preserved in an easily
accessible way in woven class files.  You can collect the weaveinfo
messages at weaving time, which give you everything you need, but once
weaving is complete you can only determine what aspects are affecting
a type (but you'd still need to dig into the attributes the weaver
attached to the bytecode).  To recognize the affected join points
you'd need to unpick the advice calls, which wouldn't be trivial, but
is doable - this too would require going through the bytecode, you
can't just do it via any kind of reflection.   ITDs on the other hand,
you can use a weave time flag that will attach annotations to the
affected types which can then be reflected upon via the AjType system
( http://www.eclipse.org/aspectj/doc/next/aspectj5rt-api/org/aspectj/lang/reflect/AjType.html
).

And when I mean the bytecode, I mean the bytecode for the affected
class.  The aspect itself doesn't store a list of places where it
applies - if it did then everytime a new type was affected the aspect
would need modifying (even if the source for it hadn't changed) and we
try to avoid doing that.

It would be possible to turn weave info messages into some kind of
file that travelled alongside the woven code that could then be loaded
by Java code later (to discover what was woven were).

Sorry I don't have an easy solution for you.

cheers,
Andy

On 2 November 2011 00:07, Reza Parizi <r.m.parizi@xxxxxxxxx> wrote:
> Hi,
>
> Given an advice A, how is it possible to write a Java program (perhaps by
> using the current AspectJ and/or AJDT APIs) to find out what classes and
> within each class, what elements (i.e. join points) are advised by A?
>
> Technically, the pointcut(s) associated with the advice A is able to tell us
> what the advised join points and their affected classes are. However,
> obtaining this kind of crosscutting relationships information in automated
> manner is probably non-trivial, where I am looking a solution for it.
>
> Thanks in advance,
>
> ~parizi
>
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