[aspectj-users] ITD based on annotations

[Paulo Alexandre Corigo Zenida <paulo.zenida@xxxxxxxx>]

Hello,

Currently, in order to do ITD based on annotations, we have to use 
interfaces, injecting code in the interface and not in the class 
itself, directly, like this:

declare parents : (@MyAnnotation *) implements MyInterface;

public void MyInterface.foo() { ... }

So, it's not possible to do ITD based on an annotation type, in the 
class itself... Something like this:

public void (@MyAnnotation *).foo() { ... }

And I was just wondering if there is any particular reason for it. Can 
you help me, please? :)

By the way, another issue, which is just a curiousity, is related to 
garbage collection for Aspects, when using the pertypewithin 
instantiation mechanism. So, with that kind of instantiation, we get a 
new instance of an aspect for each type, right? So, let us suppose we 
have an aspect that matches for a class called A and we create three 
instances of that class (creating only one instance of the aspect); and 
after a while, all those instances are garbage collected; what happens 
to the Aspect? Is it garbage collected too?

Thanks for your interest.

Cheers,

Paulo Zenida

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