Re: [aspectj-users] due to interface not advised

[Michael Rogger <Michael.Rogger@xxxxxxx>]

Your suggestion was my workaround for this problem ;) I thought there
might be a cleaner way to do this..

Thanks for your competent answer, have a nice evening!

On Tue, May 12, 2009 at 7:11 PM, Andy Clement <andrew.clement@xxxxxxxxx> wrote:
> I see.  When the aspect is compiled, the reference to 'Context' will
> be resolved to either one or the other (your interface or your
> implementation - depending on what the aspect can see) and from then
> on it will only match on that.  It won't be re-resolved if the aspect
> is used in a different configuration.  If you need it to work with
> both, you probably need something more like this:
>
> after( Object con ) : selectSingletons() && this(con) && within(*Context*) {
> }
>
> and then in your advice you can work out what you are dealing with
> (the interface or the implementation).
>
> cheers,
> Andy
>
> 2009/5/12 Michael Rogger <Michael.Rogger@xxxxxxx>:
>> Thank you very much for your fast answer!
>>
>> Your example works fine for me, I think this has maybe something to do
>> with the fact that:
>> -Context interface and Context implementation have the same name
>> (different packages and different projects)
>> -Interfaces and Implementations are strictly decoupled (both in seperate
>> projects)
>> -aspectj is used using maven-plugins and compiling aspects into a jar,
>> afterwards the aspects are applied to the differents projects
>>
>> So maybe aspectj has problems with that?
>>
>> thank you
>> Michael
>>
>> Andy Clement schrieb:
>>> Hi Michael,
>>>
>>> i dont quite follow - can you flesh out the example?  I just wrote:
>>>
>>> ---A.java---
>>> interface Context {}
>>> class ContextImpl implements Context {}
>>>
>>> aspect X {
>>>   pointcut selectSingletons(): execution(* d*(..));
>>>
>>>   after(Context con): selectSingletons() && this(con) {
>>>   }
>>> }
>>>
>>> class A {
>>>   Context doSomething() { return null; }
>>>   ContextImpl doSomethingElse() { return null; }
>>> }
>>>
>>> ----
>>>
>>> ajc -showWeaveInfo A.java
>>> Join point 'method-execution(Context A.doSomething())' in Type 'A'
>>> (A.java:11) advised by after advice from 'X' (A.java:6) [with runtime
>>> test]
>>> Join point 'method-execution(ContextImpl A.doSomethingElse())' in Type
>>> 'A' (A.java:12) advised by after advice from 'X' (A.java:6) [with
>>> runtime test]
>>>
>>> What is different between what I did and what you are saying?
>>>
>>> Andy.
>>>
>>> 2009/5/12 Michael Rogger <Michael.Rogger@xxxxxxx>:
>>>> Hi,
>>>>
>>>> I have for example this aspect:
>>>>
>>>> after( Context con ) : selectSingletons() && this(con){
>>>> ...
>>>> }
>>>>
>>>> Where Context is an interface.
>>>>
>>>> -If a method has as return type Context (infterface) it will be advised
>>>> by aspectj.
>>>> -If a method has as return type Context (class which implements
>>>> interface) it will not be advised
>>>>
>>>> In theory this should work, any ideas?
>>>>
>>>> thanks
>>>>
>>>> --
>>>> Michael Rogger
>>>> STI Innsbruck (www.sti-innsbruck.at)
>>>> University of Innsbruck
>>>> ICT Technologiepark
>>>> Technikerstr. 21a
>>>> 6020 Innsbruck, Austria
>>>>
>>>> T +43 512 507 96844
>>>> F +43 512 507 9872
>>>> E michael.rogger@xxxxxxx
>>>>
>>>> Skype michael.rogger.work
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>>>>
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>>>
>>
>>
>> --
>> Michael Rogger
>> STI Innsbruck (www.sti-innsbruck.at)
>> University of Innsbruck
>> ICT Technologiepark
>> Technikerstr. 21a
>> 6020 Innsbruck, Austria
>>
>> T +43 512 507 96844
>> F +43 512 507 9872
>> E michael.rogger@xxxxxxx
>>
>> Skype michael.rogger.work
>> _______________________________________________
>> aspectj-users mailing list
>> aspectj-users@xxxxxxxxxxx
>> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>>
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