Re: [aspectj-users] Calling super from around advice

[Walter Cazzola <cazzola@xxxxxxxxxxx>]

Hi,
you can dig the parent name out by using reflection on thisJoinPoint.

This aspect should do what you are looking for:

public aspect Test {
    String around(): execution(public String A+.getName()) && !within(A) {
      String text = thisJoinPoint.getThis().getClass().getSuperclass().getName() ;
      System.out.println(text);
      return proceed();
    }
}

You can shorten the chain of calls by using the this pointcut.

I hope this helps.
Walter

On Fri, 6 Oct 2017, Karl Sanders wrote:

> Thanks for your reply.
> So, there's no way to change the pointcut definition or something else
> to make my example work?
> I'm trying to intercept calls to a method in derived classes and then
> call the parent's base method.
>
> Regards,
> Karl
>
> On Fri, Oct 6, 2017 at 7:11 PM, Henrique Rebêlo <hemr@xxxxxxxxxxx> wrote:
> > Hi Sanders,
> >
> > This is just because the super you're calling is from the aspect's
> > supertype, which is the type object in this case...
> >
> > Em sex, 6 de out de 2017 às 13:37, Karl Sanders <karlsanders75@xxxxxxxxx>
> > escreveu:
> > > Hi,
> > > I have this example code:
> > >
> > >
> > > public class A {
> > >     public String getName() { return "A"; }
> > > }
> > >
> > > public class B extends A {
> > >     @Override
> > >     public String getName() { return "B";}
> > > }
> > >
> > > public aspect Test {
> > >     String around(): execution(public String A+.getName())
> > >                      && !within(A) {
> > >         String text = "advice";
> > >         // text = super.getName();
> > >         System.out.println(text);
> > >         return proceed();
> > >     }
> > > }
> > >
> > > public class Main {
> > >     public static void main(String[] args) {
> > >         System.out.println(new B().getName());
> > >     }
> > > }
> > >
> > >
> > > If I run the main method I get this output:
> > >     advice
> > >     B
> > >
> > > Now I hoped that by removing the comment from the line inside
> > > the advice I would get:
> > >     A
> > >     B
> > >
> > > But the code simply doesn't compile, with this message:
> > >     The method getName() is undefined for the type Object
> > >
> > > I found this message:
> > >     https://dev.eclipse.org/mhonarc/lists/aspectj-users/msg12163.html
> > > and it seems quite clearly to explain what's the issue with my example.
> > > Since some time has passed I would like to ask if it's still not possible
> > > to call the base method using super.
> > >
> > > Regards,
> > > Karl
> > > _______________________________________________
> > > aspectj-users mailing list
> > > aspectj-users@xxxxxxxxxxx
> > > To change your delivery options, retrieve your password, or unsubscribe
> > > from this list, visit
> > > https://dev.eclipse.org/mailman/listinfo/aspectj-users
> >
> > --
> > ...............................................................................................................................
> > Henrique Rebelo
> > http://www.cin.ufpe.br/~hemr
> > Centro de Informática
> > Universidade Federal de Pernambuco , Brazil
> >
> > _______________________________________________
> > aspectj-users mailing list
> > aspectj-users@xxxxxxxxxxx
> > To change your delivery options, retrieve your password, or unsubscribe from
> > this list, visit
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