sharedPlaces

A list of Places, which are shared across all Glok applications. The data is stored in Java preferences. If another application alters these preferences, the list is also updated (by reloading from Java preferences again). Whenever the list changes, the Java preferences are saved.

The net result is that multiple Glok applications can share the same list of favourite Places, and any changes in one application is also reflected in the other applications.

Warning

Java Preferences do NOT guarantee that node change fire when the node is changed from outside the current JVM. Therefore, syncing between applications cannot be guaranteed. I suspect that this feature is only implemented in Windows, but the documentation doesn't elaborate. Therefore, consider calling reloadSharedPreferences before adding/removing places. This will prevent changes in another application to be lost when favourite places are changed in your application.

Ideally, Glok would be able to use the "favourite" places supplied by your operating system, but I'm not aware of a cross-platform Java library which supports this. If you require this feature, you'll need to implement this yourself.