Re: [Repast-developer] aspect oriented programming

[Nick C. <vze...@ve...>]

Ah, I seem to remember you saying something about aspects during your
MAML presentation at the SwarmFest in L.A.=20

I agree. The aspect stuff should be as nearly completely hidden as
possible.

Nick

On Sat, 2001-12-15 at 11:13, Laszlo Gulyas wrote:Hi,

I must be growing old or something. We used aspect oriented=20
programming of some sort in MAML a few years ago, and I was
quite excited about it. But for some reason, the thought has=20
never occured me to use it for the space issue, even though=20
I am still subscribed to the AspectJ mailing list.

(We used aspects for the separation of the model and the=20
observer in MAML. For details, see:=20

L=E1szl=F3 Guly=E1s, Tam=E1s Kozsik: =84The Use of Aspect Oriented Programm=
ing=20
in Scientific Simulations", Proceedings of the 6th Fenno-Ugric Symposium
on=20
Software Technology (FUSST'99), August 19-21, 1999 Estonia.=20
http://www.sztaki.hu/~gulyas/Papers/AOPSS.zip)

I think, this could be a very good approach to our problem with
spaces, but one that needs careful implementation. I mean, we should
keep it as transparent to end-users as we can. (They'd almost
certainly run away if we start talking about aspect before they
actually grabbed the concepts of object-orientation... ;-))

Just my 2 cents.

Gulya

At 09:49 AM 12/15/01 -0500, Nick Collier wrote:

    Hi,
   =20
    Tom told me ages ago that I should take a look at some aspect
    oriented
    programming material and I finally did. I've been reading the docs
    that
    come with aspectj (http://www.aspectj.org). It looks like AspectJ's
    "introduction" might be a way to add some the functionality we are
    looking for, particularly with respect to spaces.=20
   =20
    What I'm thinking here is that we want agents to know about their
    spaces
    and act within them without the modeler doing so explicitly. The
    point
    being that agent mobility and spatial relationships can be seen as a
    kind of role (thanks David!) that cuts across agent hierarchies. The
    hierarchy expresses some model specific behavior or at least the
    behavior that is the point of the model. Mobility and spatial
    relationship are a means to achieving this behavior. Gulya has
    written
    about this previously, better than I have here so see the archives
    for
    more.=20
   =20
    So, does any one have any experience with aspectj or aspect oriented
    programming? Is this a crazy idea? It does make compilation more
    complicated by we can easily solve this with a batch or shell file
    for
    compilation.
   =20
    Comments?
   =20
    Nick
   =20
    --=20
    Nick Collier=20
    Social Science Research Computing
    University of Chicago=20
    http://repast.sourceforge.net
   =20
   =20
   =20
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Laszlo Gulyas, MSc              Phone: (617)
384-9216                          =20
Government Department   Weatherhead Center for International Affairs
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--=20
Nick Collier=20
Social Science Research Computing
University of Chicago=20
http://repast.sourceforge.net