I've been using ITDs as a big time saver in defining common actions
that can be performed on objects. This is great in that the default
code defined in the aspect applies a majority of the time. The
problem is that in the cases where it doesn't apply, almost every time
what I want to do is extend the code defined in the ITD and do
something before and/or after the default rather than completely
replace it, like a typical object hierarchy would do with a call to
super.method(), and I can't find a good way to do that with ITDs. The
best way I've come up with to handle this is to create an abstract
superclass from which the interfaces are implemented so the abstract
class inherits the default functionality and then in the concrete
subclass I can call super.method().
I had posted a similar message a few months ago and someone suggested
placing a second method in each ITD interface that would just be used
to inherit the default functionality, ie:
public void method();
public void _method();
and then in the ITD _method would define the code and method() would
just delegate to _method(), but that just seems like an awful lot of
ugly code to perform a simple pattern, which is very anti AspectJ.
So I guess my question is.... is there a better way to do this? If
not, shouldn't their be? I'd be satisfied with a way to call the
method on the aspect, but since it's written out as something like
public static void ajc$interMethod$... even if I knew the naming
pattern and it wasn't subject to change those calls wouldn't lead to
very readable code. I realize I could also use before/after/around
advise on the method but that adds a whole new issue of what order the
advice will fire in if the object structure becomes complex. So has
this been an issue for anyone else? If there isn't a good solution,
is there interest from any one else in a new feature to make this type
of thing easier?
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