Hi Adrian, Thanks for the reply.
I had already try your ping/noop solution for testing if a stateful bean is alive. But here I came on the other error in some case: "Application Error: tried to enter Stateful bean with different transaction context" :(( because my stateful bean is already involved in another transaction. May be just 2 words about our app: It's an intranet build upon Tomcat/Jboss/Struts. The struts actions will access a stateful bean that serve to centralize and execute business actions. By the same time, there is a stateful bean (a controller) for each EntityBean of the system. The execution of the business actions may access the controllers. That's why if a web users send many requests, I can have multiple transaction on the same statefull bean. So I need to find a way to prevent my stateful beans to "be entered with different transaction context". I tryed to set the transaction attribute of the ping method to "Notsupported" but I still get this error. It's 2 full days now, I'm getting around looking for solutions, but I'm still stuck. Any help is appreciated! Alban. -----Original Message----- From: Adrian Brock [mailto:[EMAIL PROTECTED] Sent: mercredi, 29. octobre 2003 16:03 To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] Transactions on Stateful beans On Wed, 2003-10-29 at 14:18, Alban Soupper wrote: > Hi all, > > I have some difficulties with the transactions on Stateful beans. > My client may spawn many requests in a very short time, and the request > processing accesses some controllers (My stateful beans). > This leads sometimes to an exception: "Application Error: tried to enter > Stateful bean with different transaction context", due to the fact my > request processors > access all at the same moment to my controllers. > > 1- Is there a way, to specify in JBoss, that we can have concurrent access > on the stateful beans ? > - if yes, what could the traps? No, concurrent access is not supported. But, you can provide your own synchronized wrapper. > 2- Is there a way, to check if a stateful is currently involved in a > transaction? > > Bonus: > 3- Is there a way, to know if a stateful bean is still alive ? > A simple ping/noop() method on the interface will tell you whether it still exists. You get a Remote/EJBException if the session was removed due to it being idle too long (default 30 minutes). Regards, Adrian > Thanks by advance, > Alban. > > > **************************************************************************** ******* > > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please notify > the system manager to [EMAIL PROTECTED] > > **************************************************************************** ******* > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SF.net Giveback Program. > Does SourceForge.net help you be more productive? Does it > help you create better code? SHARE THE LOVE, and help us help > YOU! Click Here: http://sourceforge.net/donate/ > _______________________________________________ > JBoss-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/jboss-user -- xxxxxxxxxxxxxxxxxxxxxxxx Adrian Brock Director of Support Back Office JBoss Group, LLC xxxxxxxxxxxxxxxxxxxxxxxx ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. Does SourceForge.net help you be more productive? Does it help you create better code? SHARE THE LOVE, and help us help YOU! Click Here: http://sourceforge.net/donate/ _______________________________________________ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
