I'm trying to come up with a distributed event model that's
compatible with EJB's.
My first thought was to use JMS, but it seems there are almost
no implementations of JMS out there yet.
I've been considering building a publish-subscribe event mechanism
using Jini Distributed Events, but I'm concerned that the restriction
disallowing EJB's from starting their own threads may cause some
complications. I think I can get around this by having a non-EJB
event distributor that can start up other threads (so the event sender
doesn't have to wait) and the same type of thing on the receiving
end (EJB receives an event, and if necessary, sends it to a non-EJB
event handler that can start up another thread).
I saw an article in the Java Developer's Journal (vol.4 issue 1)
entitled "Event Management and Enterprise Java Beans", but it's
the 1st part of a 2 part article, and the interesting stuff (how to
make it distributed and actually work with EJB's) is in the second
part, which hasn't come out in the succeeding 3 issues. Can't
reach the author.
I know it must be possible to handle such things, because WebLogic
has their own event mechanism. I'd use that, but I'm trying to stay
away from a proprietary technology. I've been waiting for a year
for them to come out with JMS, but it hasn't happened.
Anyone else working on this problem?
Thanks,
Mark
--
Mark Kinzie
Johns Hopkins University Applied Physics Laboratory
[EMAIL PROTECTED]
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