Re: [aspectj-users] LTW without need for javaagent

[Matthew Webster <matthew_webster@xxxxxxxxxx>]

Andy,

In order to enable LTW you will have
to modify the behaviour of either the JBoss server or the underlying JVM.
This is needed to intercept class loading to give AspectJ an opportunity
to weave the code. The simplest mechanism is to use -javaagent because
no part of the system is replaced, instead the supplied AspectJ agent is
called by the JVM. Whatever approach you use there will be a need to modify
the server configuration because I don't believe there is a way to modify
class loading simply by configuring the deployment process. However only
those applications with an accompanying aop.xml file, i.e. yours, will
experience LTW so there should be no affect on anyone else.

Matthew Webster
AOSD Project
Java Technology Centre, MP146
IBM Hursley Park, Winchester,  SO21 2JN, England
Telephone: +44 196 2816139 (external) 246139 (internal) 
Email: Matthew Webster/UK/IBM @ IBMGB, matthew_webster@xxxxxxxxxx
http://w3.hursley.ibm.com/~websterm/

"Andrew Ochsner" <aochsner@xxxxxxxxxxxxxxx>
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18/09/2006 13:58

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Subject	Re: [aspectj-users] LTW without need for javaagent

I do not control the environment (so therefore, I don't
control the command line parameters to start it up).  Basically, the
container is already running and I just drop ears and wars into a directory
to deploy.  The container itself is managed by a completely separate
team (they manage farms of these) and are not very keen on changing they
way they do things. 

Andy O

On 9/18/06, Matthew Webster <matthew_webster@xxxxxxxxxx>
wrote:

Andy, 

What is being shared, the installation or the instantiation? So do you
share the definition of the system or the system itself. I am not familiar
with the JBoss environment. 

Matthew Webster
AOSD Project
Java Technology Centre, MP146
IBM Hursley Park, Winchester,  SO21 2JN, England
Telephone: +44 196 2816139 (external) 246139 (internal) 
Email: Matthew Webster/UK/IBM @ IBMGB, matthew_webster@xxxxxxxxxx
http://w3.hursley.ibm.com/~websterm/

"Andrew Ochsner" <aochsner@xxxxxxxxxxxxxxx>
Sent by: aspectj-users-bounces@xxxxxxxxxxx

15/09/2006 20:33

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Subject	[aspectj-users] LTW without need for javaagent

Hi:

Here's my scenario:
I'm running in a shared JBoss environment so I can't change the JVM command
line arguments to include a javaagent.

Is there any other way I could possibly enable LTW that anyone could possibly
think of?  Using Spring maybe? 

I know this might be a very specific JBoss question, but any ideas would
be appreciated.

Thanks
Andy O_______________________________________________
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