Implementing real time networking into existing app

Its been some time since I have delved into the depths of networking. Hopefully someone can direct me in the right direction.
I have a desktop application with a MySQL backend. The application manages athletes, events, competitions etc for an athletics club. We can currently run the application on a machine hosting the MySQL database. From here we can connect a second machine with a separate instance of the application, connected to the MySQL database on the previous host machine.
Records can be simultaneously added or modified in parallel on both machines. Unfortunately if a record is created for example on the host machine A, machine B (connected to the MySQL database on host A via a network) does not detect this modification until machine B does an action to update the current screen. In which case the new record is visually shown.
What I would like to implement in the cleanest way into this current application is real time networking. So that when a record is updated on any machine connected to the host (including the host). That a signal is sent to each client connected to the host to update current contents in application if required.
What relevant material would you recommend I cover?
Would simple sockets do the trick?
All views welcomed
Mel

cotton.m wrote:
JMS? Thanks cotton, I will look into JMS
Unless you just wanted to play with sockets for the experience in which case you can do as you like. If you want get better with Java networking then IMO you must get ejp's book. [http://www.amazon.com/Fundamental-Networking-Java-Esmond-Pitt/dp/1846280303]
It's more of a fix before we release it to the poor souls that will be using our software, oh how the public are blind...
Mel

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