Re: [aspectj-users] Is this possible with AspectJ (or AOP in general)?

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

Hello Ernii,

As far as I know, it is not possible for AspectJ to do weaving in JDK  
classes. From what you have described, I suppose what you are defining  
in your pointcut is something like:

public pointcut myPointcut() :
    execution(public void java.awt.Component+.paint(java.awt.Graphics));

before() :
    myPointcut() {
    ...
}

The previous will try to do weaving on the callee code, i.e., on the  
Swing class that, if belongs to the JDK, will not be weaved. You will  
only have success for your own classes extending Swing ones or calls  
to Swing methods that occur within your own project.

I hope this helps. Regards,

Paulo Zenida


Citando ernii <ernii_23@xxxxxxx>:

> Hello,
>
> I'm new to AOP and trying to understand wether I can do the thinks I want to
> do with AOP (especially AspectJ wich seems to be the most complete solution
> - and I really like eclipse ;)
>
> I would like to add some general behaviour while painting to all swing
> components that I am using in my program ... not only the onces I create in
> my project.
>
> So I tried to make a pointcut at void
> java.awt.Component.paint(java.awt.Graphics) and that worked only with
> classes within my project that have overriden the paint method.... is there
> a way (I thought with load- or runtime weaving it should be possible) to do
> that? Do I need to configure the LTW or is it just not possible?
>
> Thanks
>
> ernii
> --
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