[rules-users] Clarification of how the Persistence Manager works

Hello All I understand that Guvnor uses the PersistenceManager in JackRabbit to persist data but I would like confirmation of how it works. Namely the following. * What actions cause the PersistenceManager to persist data? * When a back end java process connects to the Guvnor server in terms of accessing the Knowledgebase is it through a Cache or direct database connection? * If a user updates the knowledge is it real time update or does the user need to click on Save and validate to persist the change. Thanks Denis A