Java Tip 125: Set your timer for dynamic properties

Property files are widely used to control application configurations. One great advantage of property files: they let you change your application’s configuration without recompilation. However, you most likely need to restart your application for the new configuration to take effect. This might not be a constraint for client applications, where users stop and start the application. In fact, some GUI (graphical user inferface) programs even let you change properties through the user interface, without restarting the program.

However, for server applications, where often a GUI-deficient property file set controls the configuration, changing configuration parameters without restarting the application is more desirable — though more challenging.

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