Redefining a class on the fly -

[Naveen Kuppili <na...@flexetech.com>]

All,
 
Is there a way to redefine a class on the fly? I know that we could have
custom classloaders that could potentially modify byte code on the fly
while loading a class. But, would it be possible to dynamically unload
the class and redefine it? I want to have a way of "rolling back" my
changes that have been done to a class.
 
Any thoughts on this?
 
Thanks,
Naveen
Flexetech Solutions, Inc.
http://www.flexetech.com

Re: Redefining a class on the fly -

[Juozas Baliuka <ba...@centras.lt>]

No,  there is no way to do it.

----- Original Message ----- 
From: "Naveen Kuppili" <na...@flexetech.com>
To: <bc...@jakarta.apache.org>
Sent: Wednesday, August 27, 2003 9:44 PM
Subject: Redefining a class on the fly -


> All,
>  
> Is there a way to redefine a class on the fly? I know that we could have
> custom classloaders that could potentially modify byte code on the fly
> while loading a class. But, would it be possible to dynamically unload
> the class and redefine it? I want to have a way of "rolling back" my
> changes that have been done to a class.
>  
> Any thoughts on this?
>  
> Thanks,
> Naveen
> Flexetech Solutions, Inc.
> http://www.flexetech.com
> 

Re: Redefining a class on the fly -

[Bob Lee <cr...@crazybob.org>]

Sure, using the JPDA. Actually, Daniel Savarese wrote an article 
describing your exact case:

http://www.ftponline.com/javapro/2002_09/magazine/columns/proshop/

Bob

On Wednesday, August 27, 2003, at 01:44 PM, Naveen Kuppili wrote:

> All,
>
> Is there a way to redefine a class on the fly? I know that we could 
> have
> custom classloaders that could potentially modify byte code on the fly
> while loading a class. But, would it be possible to dynamically unload
> the class and redefine it? I want to have a way of "rolling back" my
> changes that have been done to a class.
>
> Any thoughts on this?
>
> Thanks,
> Naveen
> Flexetech Solutions, Inc.
> http://www.flexetech.com