JBossDeveloper

Thanks for the tip.  I wonder how difficult it would be for JBAS to support this.

I looked at EasyBeans.  I would rather not switch EJB3 implementations.

I guess it is not that simple to get a SMPC that behaves like a CMPC and I am stuck with this for now.

Any other suggestions are welcome.

Hi..

Hi buddy...sorry because my reply is not related with the question which is being discussed right now..but will u please devote some time of yours to me..because..i am an amature to seam and not getting the essence of .page.xml files in Seam 2.1.0... I will be thankfull if  you can help me out..

Thanks and regards
Prasad.

Hmmm! You know it is it not related and yet you post it in this thread. :)

Please create a new topic and please refrain using unrelated topics.

Jason Long wrote on Feb 13, 2009 19:57:


Really.

How is this different from JVM HotSwap?

The differences

Willy S wrote on Feb 13, 2009 18:49:


Jason, have you looked at JavaRebel? we have an ejb3 seam app and find JavaRebel helps a lot.  It doesn't pick up new functions or variables in a class, but often with debugging etc the changes are going on inside a function and JavaRebel gives us instant hot deployment of entity and session beans for this scenario.

JavaRebel does pick up  functions or variables in a class. Sun JVM HotSwap does not.

Francisco Peredo wrote on Feb 15, 2009 03:02:


JavaRebel does pick up  functions or variables in a class. Sun JVM HotSwap does not.

Francisco, have you tried JavaRebel with EJBs? or did you try it only with POJOs?

Mmm, only on POJOs, and only for a few days... (only trial period, super low budget here).

So I am no expert, but it did pick up functions or variables in classes.... of course it could be that it failed with EJBs (another reason no to use them ;). But it seems like they believe it works.

We use JavaRebel with EJB.  it doesn't pick up new functions on entity or session beans, but as stated earlier we still find it helpful as it handles code changes inside functions.  Just hit explode and a few seconds later the change is live.

Have you reported this problem to the JavaRebel guys ( support@zeroturnaround.com )? Maybe you are doing something wrong and because of that missing some nice features...

According to this article, JavaRebel 2.0 ( released March 25th, 2009 )  has support for WAR and EAR hot-deployments.

The reson why it cannot add business methods to ejb's is because the ejb's are accessed through a proxy generated by the ejb container. The proxy has to be updated as well as the base class,  so someone whould have to write a javarebel plugin that updates the proxy.

Francisco Peredo wrote on Apr 07, 2009 23:08:


According to this article, JavaRebel 2.0 ( released March 25th, 2009 )  has support for WAR and EAR hot-deployments.

I just watched the JR demo (petclinic spring, funny how Seam is not even listed :) and read the infoq article, etc.

So does JR support EJB (session bean, message driven bean and entity class) hot deploy or not???

Stuart Douglas wrote on Apr 08, 2009 00:22:


The reson why it cannot add business methods to ejb's is because the ejb's are accessed through a proxy generated by the ejb container. The proxy has to be updated as well as the base class,  so someone whould have to write a javarebel plugin that updates the proxy.

so that's a deal-breaker for me, esp. if it's not open-source (free)...

I want 100% hot deployment for all EJB components and entity classes!

why doesn't zeroturnaround write that plugin that updates the proxy?  if that a very difficult task?  there's a pretty big market out there for EJB hot-deployment...

so is it worthwhile to buy this JR plugin for Seam development or not if you're using lots of SFSBs, for example and need hot-deployment (2.0 features WAR/EAR hot deploy)?