Re: [aspectj-users] how to intercept joinpoints ...

["Davi Pires" <inhodpr@xxxxxxxxx>]

Not very neat...

If you need a way to "name" your advices, I suggest using annotations. For example:

public aspect Aspect1 {
        pointcut pc(): execution(* Foo.m1(..));

        @BeforeAdvice
        before(): pc() {
                System.out.println("I'm before m1");
        }

        @AfterAdvice
        after(): pc() {
                System.out.println("I'm after m1");
        }

}

public aspect Aspect2 {

    pointcut beforeM1(): within(Aspect1) && @annotation(BeforeAdvice);
    pointcut afterM1(): within(Aspect1) && @annotation(AfterAdvice);
    
    before(): beforeM1() {
        System.out.println("I'm before before m1.");
    }
    
    after(): beforeM1() {
        System.out.println("I'm after before m1.");
    }
    
    before(): afterM1() {
        System.out.println("I'm before after m1.");
    }
    
    after(): afterM1() {
        System.out.println("I'm after after m1.");
    }

}

This works as expected, and generates a correct output.

Davi

On 10/20/06, Paulo Alexandre Corigo Zenida < paulo.zenida@xxxxxxxx> wrote:

Hello,

I believe the following Aspect would to what you wish:

public aspect Aspect2 {

    pointcut pc(): execution(* Foo.m1(..));

    before() :  adviceexecution() &&
        within(Aspect1) &&
        if(thisJoinPoint.toString().equals("adviceexecution(void
pt.iscte.ci.example1.Aspect1.before())")) {
        System.out.println("I'm before before m1");
    }

    before() :  adviceexecution() &&
        within(Aspect1) &&
        if( thisJoinPoint.toString().equals("adviceexecution(void
pt.iscte.ci.example1.Aspect1.after())")) {
        System.out.println("I'm before after m1");
    }

    after() :   adviceexecution() &&
        within(Aspect1) &&
        if(thisJoinPoint.toString().equals("adviceexecution(void
pt.iscte.ci.example1.Aspect1.before())")) {
        System.out.println("I'm after before m1");
    }

    after() :   adviceexecution() &&
        within(Aspect1) &&
        if(thisJoinPoint.toString().equals("adviceexecution(void
pt.iscte.ci.example1.Aspect1.after())")) {
        System.out.println("I'm after after m1");
    }
}

The output with this aspect and your code is:

I'm before before m1
I'm before m1
I'm after before m1
I'm on m1
I'm before after m1
I'm after m1
I'm after after m1


Hope this helps.

Best Regards,

Paulo Zenida



Citando Davi Pires <inhodpr@xxxxxxxxx>:

> I was wondering if the following pointcut could do this:
>
> pointcut x(): adviceexecution() && within(Aspect1);
>
> []'s,
> Davi Pires
>
> On 10/20/06, Fabio Fagundes Silveira <ffs@xxxxxx> wrote:
>>
>> Hello,
>>
>>   Is it possible to intercept an before, around or an after defined in
>> an aspect?
>>
>>   Let's suppose that method "m1" of class Foo is an advised method.
>>
>> public class Foo {
>>         public void m1() {
>>                 System.out.println("I'm on m1");
>>         }
>>
>>         public static void main(String[] args) {
>>                 Foo foo = new Foo();
>>                 foo.m1();
>>         }
>> }
>>
>> public aspect Aspect1 {
>>         pointcut pc(): execution(* Foo.m1 (..));
>>
>>         before(): pc() {
>>                 System.out.println("I'm before m1");
>>         }
>>
>>         after(): pc() {
>>                 System.out.println("I'm after m1");
>>         }
>>
>> }
>>
>>
>>    This way, m1 is correctly being intercepted, ok? The output is of
>> course:
>>
>> I'm before m1
>> I'm on m1
>> I'm after m1
>>
>> So far so good ... But I would like to implement an aspect that  could
>> print something like:
>>
>> I'm before before m1
>> I'm before m1
>> I'm after before m1
>>
>> I'm on m1
>>
>> I'm before after m1
>> I'm after m1
>> I'm after after m1
>>
>>
>> (ie. an before and an after of an before, and an before and a after of
>> an after)
>>
>> Is it possible?
>>
>> Thanks a lot
>> _______________________________________________
>> aspectj-users mailing list
>> aspectj-users@xxxxxxxxxxx
>> https://dev.eclipse.org/mailman/listinfo/aspectj-users
>>
>




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