Saving Bundle State Data

Problem number one is: Where to save the data?

Eclipse provides a bundle state location which can be obtain in various ways.

Eclipse Platform

The org.eclipse.core.runtime.Platform class has various methods for working with the application runtime.

Bundle bundle = Platform.getBundle(PLUGIN_ID);
IPath location = Platform.getStateLocation(bundle);

This returns the location to a directory the bundle can use to store some bundle specific data. The directory will exist if queried in this way.

Internal: The directory can be found at <workspace>/.metadata/.plugins/<my_plugin>