Is this related to AOP?

[raja05]

I may be way off-base on this, but from what i understand in the JBoss front page, you can write a piece of code and insert that into an already compiled bytecode using javassist. Isnt this the same as AOP Cross cutting where you can write a piece of functionality(For e.g. logging before calling an ejbActivate()) and make the container call this before the function?

TIA
Raj

[chiba]

Roughly to say, yes. Javassist allows you to
write an aspect in Java as AspectJ allows you
in an extended Java language.

Because of this difference, Javassist is suitable
for describing a complex crosscutting concern
and automatic aspect weaving.

[bill.burke]

JBoss AOP framework is built on top of Javassist.

http://www.jboss.org/index.html?module=html&op=userdisplay&id=developers/projects/jboss/aop

[marc.fleury]

yes that is precisely the whole point of bringing prof chiba on board, it is a core piece of our instrumentation and we want him right here with us.

If you are coming to JavaONE be sure to check out our talk JBossTWO where we will be talking about all this and much more

[jeffgrigg2]

See "jAdvise", an Aspect Oriented Programming (AOP) framework built on top of javassist.

http://crazybob.org/downloads/