Re: [ajdt-dev] documentation for @DeclareParents

[Oliver Böhm <boehm@xxxxxxxxxx>]

short addition to my mail before: without "static" it also doesn't
compile - I get the error message "@DeclareParents: can only be used on
a public static field whose type is an interface" - so the documentation
seems to be correct.

But with "static" I get "No enclosing instance..." as error message :-(

Any remarks?
Oliver


Oliver Böhm wrote:
> Hello,
> 
> as mentioned here on the list the @DeclareParents syntax changed a
> little bit but is implemented now (when I remember right). Today I
> checked the documentation in CVS and found the following comment in
> ataspectj.xml:
> 
> // here is the actual ITD syntax when using @AspectJ
> // public static is mandatory
> // the field type must be the introduced interface. It can't be a class.
> @DeclareParents("org.xzy..*")
> public static Moody introduced = new MoodyImpl();
> 
> But when I tried it with my example and the newest build
> (1.5.0.200510241400) I get the error message
> "No enclosing instance of type GefuehlsAspekt is accessible. Must
> qualify the allocation with an enclosing instance of type GefuehlsAspekt
> (e.g. x.new A() where x is an instance of GefuehlsAspekt)."
> (you'll find the GefuehlsAspekt at the end of this mail)
> I think the "static" is wrong here - without it, it seems to compile. So
> here my questions, before I dig deeper into the problem:
> 
> 1) is the documentation wrong here?
> 
> 2) will @DeclareParents work without the "static"?
> 
> regards
> Oliver
> 
> 
> 
> For completness here my example aspect, which is very similar to the
> Mood example in the documentation:
> 
> public class GefuehlsAspekt {
> 
>     public interface Feeling {
>         String getSense();
>     }
> 
>     public class FeelingImpl implements Feeling {
>         private String sense = "I feel good";
> 
>         public String getSense() {
>             return sense;
>         }
>     }
> 
>     @DeclareParents("verwaltung.Person")
>     public static Feeling introduced = new FeelingImpl();
> 
>     @After("execution(* *.*(..)) && this(f) && !within(GefuehlsAspekt)")
>     public void howdoyoufeeltoday(Feeling f) {
>         System.out.println(f.getSense());
>     }
> 
> }


-- 
Oliver Böhm
http://www.javatux.de