Is there a way to create a 'global' that is completely specific to a drl file rather than the working memory?  I only wish to use this in rhs notification/persistence operations, ie passing a user's unique id to a db or sms operation.

I know this does not work but perhaps it will help to better illustrate my question:

global int user_id = 123;

...
 then
   notification.sendSMS(user_id);