The observer design pattern defines one-to-many relationship between objects so that changes to one object can be notified to the other dependent objects The Observer design pattern falls under ...

I currently have a program that polls a MySql database for changes. I'd like to switch to the Observer design pattern, but I'm not sure of the best way of implementing it. I was thinking maybe I'd ...

The Observer pattern lets you build extensible software with pluggable objects by allowing communication between loosely coupled objects. In his latest Java Design Patterns column, David Geary ...