This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I am trying to design an appllication that using dynamic notification to clients upon data store updates (i.e. background threads a,b & c update an event database, and then another ejb notifies gui Z that updates have occurred and either provides the updates or indicates that updates have occurred. Gui Z (could be stand alone java app or applet) then calls an ejb to retrieve the updates for display). The general purpose is to eliminate continually polling the database for new updates.
Is there a design pattern for client registration, update notification, etc for this. I had envisioned using message ejbs for this.
A good question is never answered. It is not a bolt to be tightened into place but a seed to be planted and to bear more seed toward the hope of greening the landscape of the idea. John Ciardi
Joined: May 20, 2004
Looking on the net I haven't found a design pattern that pulls both JMS publish/suscribe and notification/registration. I've seen the later for ejbs, but not incorporating JMS. Short of buying the eai patterns book, is there another resource out there?