Re: [aspectj-dev] NPE with @args

[Oliver Böhm <boehm@xxxxxxxxxx>]

Andy Clement schrieb:
> Right.... last spam from me on this....  I've looked at the bug report
> and can see a failure when the program is in a package.
>
> However, I should have said in the first place that you cannot do
> parameter annotation matching with @args(), that is for matching an
> annotation on the type of the parameter.
>
> @Foo
> class MyAnnotatedType {}
>
> public void m(MyAnnotatedType mat) {}
>
> execution(* *.m(..)) && @args(Foo) // will match m
>
> The only way to match parameter annotations is to use the syntax I
> showed earlier:
>
> public void m(MyAnnotatedType mat) {}
> public void m2(@Foo String s) {}
>
> execution(* *.m*(@Foo (*)))  // will only match m2

ah, I see now, what I did wrong. My first try was

    execution(* *.m*(@Foo *))

(without the inner bracket) but this does not match the pointcut (I got 
a warning for that).

> For more information, see the 1.6.0 readme:
> http://www.eclipse.org/aspectj/doc/released/README-160.html

I was not aware of the different meaning for an annotation before a 
parameter in the AspectJ syntax. Now I know why the pointcut above (and 
my first try) do not match.

Thanks for your clarification
Oliver