Re: [aspectj-users] Exposing state held in method annotations

[Ramnivas Laddad <ramnivas@xxxxxxxxxxxxxxx>]

Not tried, but the following should work:

pointcut constantArgumentMethods(ConstantArguments annot) 
   : call(@ConstantArguments * *.*(..))
     && @annotation(annot);

Then inside advice, you may access the value property of the "annot" context:

before(ConstantArguments annot) : constantArgumentMethods(annot) {
	System.out.println("Value is : " + annot.value());
}



Eric Bodden wrote:

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>
> Hi all.
>
> Today I came across an annotation problem which I don't know how to
> solve:
>
> I have a method annotated like this:
>
> @ConstantArguments({1}) public int foo(Wrapper a) {
> ..
> }
>
> Now I am matching on calls to it like this:
>
> pointcut constantArgumentMethods() : call(@ConstantArguments *
> *.*(..));
>
> But how can I expose the "value" state "{1}" that I passed in above?
> The following does *not* work:
>
> pointcut constantArgumentMethods(int[] value) :
> call(@ConstantArguments(value) * *.*(..));
>
> I guess @target will not help, since it returns annotations of the
> target *type*, not *method*, or am I wrong?
>
> Cheers,
> Eric
>
> P.S. Definition of the ynnotation type:
>
> public @interface ConstantArguments {
>
>    int[] value() default {};
>    
> }
>
> - -- 
> Eric Bodden
> Chair I2 for Programming Languages and Program Analysis
> RWTH Aachen University
>
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