Maarten Bosteels wrote:
The codecfactory in the tutorial is stateless :
http://mina.apache.org/tutorial-on-protocolcodecfilter-for-mina-2x.html
Well, if you create new instances of encoder/decoder per session, it
doesn't matter too much that the factory is stateless or not. In fact,
the factory being statefull or stateless is irrelevant. It's the
encoder/decoder state which is important. As soon as you have new
instances of those guys for each new session, and as soon as you have a
guarantee that you can't enter the encoder/decoder in two different
threads for the same session, then you are safe.
FWIK, if you encoder/decoder are stateless, you should never instanciate
them for each session. If they are statefull, then again, you have to
think about the consequences. I don't think it's a good idea to design a
stateful codec by storing data into the encoder/decoder. I would rather
store those data in a context object, stores within the session. This is
what we do for the LDAP protocol. So at the end of the day, I don't
think it make any sense to instanciate encoder/decoder at all ...
Thanks Marteen for the pointers !
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cordialement, regards,
Emmanuel Lécharny
www.iktek.com
directory.apache.org
