Re: [aspectj-users] Beware abstract classes of declare parents

[Dean Wampler <dean@xxxxxxxxxxxxxxxxxxxxx>]

There are no stupid questions! ;)

This issue of qualifying types came up recently in another context 
(http://dev.eclipse.org/mhonarc/lists/aspectj-users/msg04561.html). I 
could use it myself. Currently, AJ doesn't support it although there is 
an enhancement request for it.

As discussed in Adrian's message in the link above, the best you can do 
is some sort of runtime test.

However, if you follow a naming convention for your abstract classes, 
e.g., something like "FooHelper" or "AbstractFoo", then you could write

public aspect A {
       declare parents:
       (foo.x.y..Abstract*) implements Finalize;
}

dean


Bjoern Seebeck wrote:
> Hi!
>
> I´m relatively new to AOP and AspectJ, so please excuse me, if question
> is too stupid...
>
> Following Problem:
> I want to do static crosscutting for all classes in a package.
> More specific, I want all the classes to implement an interface
> named Finalize which declares the finalize method to do something
> at the end of object livetime.
>
> For this I coded following aspect:
>
> public aspect A {
>        declare parents:
>        (foo.x.y..*) implements Finalize;
> }
>
> Now, I don´t want to introduce this implementation to abstract classes.
> Is there a way to make this declaring? I thought of something
> like this, but (of course) it does not work:
>
> public aspect A {
>        declare parents:
>        (foo.x.y..*) &&
>        (!abstract foo.x.y..*) implements Finalize;
> }
>
> Regardz,
> Bjoern
> _______________________________________________
> aspectj-users mailing list
> aspectj-users@xxxxxxxxxxx
> https://dev.eclipse.org/mailman/listinfo/aspectj-users

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Dean Wampler, Ph.D.
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