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If creating an IM platform in Java, which would be a better way to implement communications between the clients and server?
I was thinking either RMI or just a socket connection…
Advice please,
Thanks
I would use straight socket connection, using a well known protocol such as XMPP. You can use a library (like smack) to avoid implementing the whole protocol yourself.
The main advantage of XMPP over RMI or your self-made protocol is that is a well established protocol used for exactly that purpose: IM.
Some chat services already using XMPP include Google Chat (GTALK) and Facebook.