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Re: [aspectj-users] around two methods ?
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Can't you just write it in a regular Java program and use AJ to weave it
in where you want it to happen? Doesn't look like a crosscutting problem
to me.
Charles Zhang (http://www.eecg.utoronto.ca/~czhang)
Candidate of M.A.Sc. Computer Group, Dept. of Elec. & Comp. Engineering
U. of Toronto, Ontario, Canada
*********************************************************
" Yawn!!" (Charles Zhang)
On Fri, 28 Mar 2003, [iso-8859-1] julien bieren wrote:
> N.B.: I posted this message two weeksago. I dare to
> re-post it becasue i would really need help. Thanks.
>
> Hi,
>
> A question that may sound stupid to someone:
>
> 1) The simple case
>
> Let's assume i have a Java program such as:
> ...
> method1();
> method2();
> ...
>
> and i want to add an aspect and get the result:
> ...
> if (cond) {
> method1();
> } else {
> method1bis();
> }
> method2();
>
> It is fine, i only need an around call (void
> method1()), i test the cond then proceed() or execute
> method1bis().
>
> 2)
> But let's assume i have this:
> method1();
> method2();
> method3();
>
> and i want to add an aspect to get the result:
> if (cond) {
> method1();
> method2();
> } else {
> method1bis();
> method2bis();
> //method4(); as many as wanted
> }
> method3();
>
> And here i don't know. At the moment i have two
> solutions:
> - i encapsulate method1 and method2 into void
> method12 { method1(); method2();} and use the same
> kind of around advice as before. But for some reasons
> (in complex cases) this method is not convenient,
> - i use one around advice for method1 and one for
> method2. In this around i execute as many methods of
> the "else" path and keep trace of which branch i am in
> with a boolean or int. In that case for instance:
>
> boolean elsePath = false;
>
> void around(): call (void method1()) {
> if (cond) {
> proceed();
> } else {
> elsePath = true;
> method1bis();
> method2bis();
> //method4(); as many as wanted
> }
> }
>
> void around(): call (void method2()) {
> if (elsePath) {
> return;
> } else {
> proceed();
> }
> }
>
> But this solution would look very ugly in complex
> cases.
>
> Does anybody have another solution to do this ?
>
> OK, i hope the question won't be harder to understand
> (due to unclearness) than the problem to solve.
>
> Thank you everybody.
>
> Julien BIEREN
> Computer Science Student.
>
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