[news.eclipse.platform.rcp] Using global data in several plugins

["Uwe Peuker" <info@xxxxxxxxxxxxxxxx>]

Hi all,
I am searching for the best way to access a data structure over several 
plugins.
My intention is an application as RCP plugin using a global data object 
(like a database).
In different use cases I want add other plugins to extent the 
functionallity.

What would be the best way to realize this "shared access". My only idea is 
a static function to access a singleton instance of the "base plugin" to get 
the "database".

Thanks for any hints
Uwe