there is a controller webimpl that acts as a facade, and that method is synchronized...
[EMAIL PROTECTED] wrote: >I haven't seen the history on this issue, but it interests me. I had a >quick look at the ShoppingClientControllerEJB class that is given as an >example by Sun in the Session Facade design pattern, but couldn't see where >they are synchronizing calls. Can you provide some more clues? > >Thanks, > >John H. > > > > > "The elephantwalker" > > <[EMAIL PROTECTED]> To: >[EMAIL PROTECTED] > Sent by: cc: > > owner-orion-interest@orion Subject: RE: Concurrent >calls to Session bean methods > server.com > > > > > > 03/19/02 10:31 PM > > Please respond to > > Orion-Interest > > > > > > > > > >Vani, > >You can use the petstore trick. Use a facade class which sychronizes each >call to your session bean. That should do the trick. > >This is a _famous_ problem with session beans. > >regards, > >the elephantwalker >www.elephantwalker.com > > >-----Original Message----- >From: [EMAIL PROTECTED] >[mailto:[EMAIL PROTECTED]]On Behalf Of Vani H.S. >Sent: Wednesday, March 20, 2002 12:04 AM >To: Orion-Interest >Subject: Concurrent calls to Session bean methods > > >Hello All, > > I have been trying to deploy an application consisting of session beans >and mdbs onto orion1.5.4. > But I seem to run into deadlocks, because my session bean gets called >concurrently. Please can anybody can tell me if there is a setting to allow >concurrent calls so that, when a session bean method is called at one time, >the EJB container blocks the concurrent method call and allows it to >proceed >when the previous call has completed? > If not, how should this problem of concurrent calls be handled in orion? > Please help. >Thanks, >Vani > > > > > >The allow-concurrent-calls element specifies whether a stateful session >bean >instance allows concurrent method calls. By default, >allows-concurrent-calls >is false. However, when this value is set to true, the EJB container blocks >the concurrent method call and allows it to proceed when the previous call >has completed. > > > > > >_________________________________________________________________ >Join the world's largest e-mail service with MSN Hotmail. >http://www.hotmail.com > > > > > > >
