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Re: [aspectj-users] Hi All ! Got a couple of questions regarding AspectJ
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Just a note: LTW as it is in AJ 1.2 relies on a Java 1.4 option, and
if you plan to use it for LTW in the context of an app server / web
server that will not do the job correctly due to the classloader
complexity.
Hence the AspectJ 5 plans.
Alex
On Wed, 16 Feb 2005 12:33:13 -0800, Wes Isberg <wes@xxxxxxxxxxxxxx> wrote:
> Hi Adrian,
>
> No harm, no problem, no need to reply...
>
> Just for the record, only the aspects need to be compiled with ajc.
>
> Without LTW:
>
> CLASSPATH="classes"
> java Main
>
> With LTW:
>
> ajc -sourceroots aspectj-src/ -outjar aspects.jar
> export ASPECTPATH=aspects.jar
> {aspectj-1.2.1}/bin/aj Main
>
> Enjoy -
> Wes
>
> ------------Original Message------------
> From: Adrian Powell <apowell@xxxxxxxxxx>
> To: aspectj-users@xxxxxxxxxxx
> Date: Wed, Feb-16-2005 12:16 PM
> Subject: Re: [aspectj-users] Hi All ! Got a couple of questions regarding AspectJ
>
> Wes,
>
> I haven't used the LTW in AspectJ, but from what I read, it requires that you compile the Java files with ajc (iajc ant task) which isn't what Reddy had asked. His question about providing pointcuts at runtime also sounded more like an AspectWerkz-like LTW feature with the XML-configuration file. I agree though, that your answer is more helpful.
>
> cheers,
> -adrian.
> --
> Adrian Powell
> Centre for IBM e-Business Innovation :: Vancouver
> apowell@xxxxxxxxxx / 604-297-3194
>
> "Wes Isberg" <wes@xxxxxxxxxxxxxx>
> Sent by: aspectj-users-admin@xxxxxxxxxxx
> 02/16/2005 11:52 AM Please respond to
> aspectj-users
>
> Toaspectj-users@xxxxxxxxxxx
> cc
> SubjectRe: [aspectj-users] Hi All ! Got a couple of questions regarding AspectJ
>
>
> Load-time weaving support has been in AspectJ since 1.2.
> See the bin directory and the examples in the AspectJ 1.2.1 release.
>
> Wes
>
> ------------Original Message------------
> From: Adrian Powell <apowell@xxxxxxxxxx>
> To: aspectj-users@xxxxxxxxxxx
> Cc: aspectj-users@xxxxxxxxxxx
> Date: Wed, Feb-16-2005 11:22 AM
> Subject: Re: [aspectj-users] Hi All ! Got a couple of questions regarding AspectJ
>
> Reddy,
>
> It sounds like you want support for Load-Time Weavers. There is some notes about the future direction of AspectJ to support this in the Developer's Notebook: http://dev.eclipse.org/viewcvs/indextech.cgi/~checkout~/aspectj-home/doc/ajdk15notebook/ltw.html. It will have notes about how to compile your source and drop in aspects at runtime, how to use XML files to configure the pointcuts and advice, and other handy features. AFAIK, this isn't well supported in AspectJ yet, but with the addition of AspectWerkz, we can expect to see this in the near future.
>
> cheers,
> -adrian.
> --
> Adrian Powell
> Centre for IBM e-Business Innovation :: Vancouver
> apowell@xxxxxxxxxx / 604-297-3194
>
> "Koduru, Rajendra Kumar Reddy" <rajendra.kumar.reddy.koduru@xxxxxxx>
> Sent by: aspectj-users-admin@xxxxxxxxxxx
> 02/16/2005 11:04 AM Please respond to
> aspectj-users
>
> To<aspectj-users@xxxxxxxxxxx>
> cc
> Subject[aspectj-users] Hi All ! Got a couple of questions regarding AspectJ
>
> HI AspectJ users,
>
> I am new to AOP, so just started to know info about aspectJ. Got
> a basic idea with FAQ'S and some paper online. However got few
> queries..Hope that you can help me in this regard.. The list follows
>
> ** Note:: Here my questions are related to development aspects.
> Production aspects can be neglected. Of course few are general
> questions.
>
> 1. I have compiled my application using javac. I develop few aspects
> for this application. I only want to compile the aspects nothing else.
> Is it possible?
>
> 2. If the answer to the above question is YES, can i use the new byte
> code weaver with this aspect binaries and normal .class files [javac
> output]??
>
> 3. If i want to instrument only few methods, which i dont know at
> compile time of the aspect, what should i do? i.e is it possible to
> provide pointcuts and advices for an aspect at run time??
> i.e. I want only few methods of a particular class to be
> instrumented, and i dont know these methods at compile time. I want the
> user to select the methods and packages/classes at runtime via UI.
> so that I can have a general aspect, which need not be
> recompiled.
>
> 4. I have compiled sources and aspects with ajc compiler, and if want to
> deliver to the customer, without the aspects that were introduced with
> the compilation..how can I remove those?? Is selective removal of
> aspects possible?? If so could you please let me know the option to be
> used.
>
> I hope that you will consider my queries and can help me in this
> regard
>
> Thank you
> Reddy
>
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