[rules-users] usage of @startTimestamp

Hi everybody, I am delepoing an application using Drools to correlate events from a network management system. Can anyone recommend me a good tutorial which teaches how to use real time clock ? I am using the book of Michal Bali, which is very good indeed. The book examples uses the following code: clock.advanceTime(*xx seconds*, TimeUnit.SECONDS); However, I would like to use the property of an event called *startTime *and *endTime *which means the time on which the event starts and the time the event finishes. I know there is the property @startTimestamp mentioned at the book. But, where can I find more examples of usage of @startTimestamp in rule files ? Best Regards, * Lavoisier José Leite Farias* Skype: lavoisierfarias Twitter: http://twitter.com/LavoisierFarias