[rules-users] timestamps fusion

Hi Guys, I am using last version of fusion. do events in stream mode get automatic timestamps ? do I need to change my Event class like in the broker example (in the way of Event<stockTick> ) ? class Event{ int symbol; int load; } say if I have a simple code : ..drools initiation.. (stream mode) session.insert(event(1,10)) session.insert(event(1,20)) session.insert(event(1,30)) should I for every new event fireallRules ? What about salience , where can I get documentation about it ? Thank you, h-