Sorry, forgot to reply to this earlier.
Do you plan to apply HA fonctionnality to @Singleton bean, i mean ability to restart the singleton bean on others server instance on a failure ?
Right now, the main priority is to get the EJB3.1 spec compliant singleton implementation available ASAP. Although, i haven't looked into the details about HA functionality for Singleton, i guess we could do/use the same infrastructure as what we have for providing HA for @Stateful beans. So yes, i think this should be possible. More on this, once we have the @Singleton implementation out. So stay tuned!
I am very happy to see part of the EJB 3.1 in the current version, many thanks.
Good to know
A little up .
Is it possible to declare @Singleton bean as HA artefact ? Is there some guides or articles that we can use in order to try it ?
i'm a newby in the EJB world. i'm testing the singleton bean using jboss AS 6.0.0.M4
i already tested functionalities specified in the spec but some issues are not specified and i didn't find the answer in discussions.
it's related to the behaviour of singletons in a clustered environment. i knew that an application singleton instance will be provided per JVM.
does @singleton guarantee propagating changes made on one instance to others? i would be greatful if you tell what mecanisms jboss uses to deal with that.