[jboss-jira] [JBoss JIRA] (JBRULES-2773) Rule delayed although temporal operator within not() refers to past events

Rule delayed although temporal operator within not() refers to past events -------------------------------------------------------------------------- Key: JBRULES-2773 URL: https://issues.jboss.org/browse/JBRULES-2773 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 5.1.1.FINAL Reporter: Wolfgang Laun Assignee: Edson Tirelli Fix For: 5.4.0.Final The .drl: declare Leave @role( event ) @timestamp( timestamp ) end rule "XXX Leave not !=" when $leave: Leave() not Leave( this != $leave ) then System.out.println( "XXX only one Leave - not !=" ); end rule "YYY Leave not after" when $leave: Leave() not Leave( this before $leave ) then System.out.println( "YYY only one Leave - not before" ); end A) The pseudo-clock is advanced according to the timestamp; then exactly one event Leave is inserted; then fireAllRules() is called. 1) Running in CLOUD mode, both rules fire. 2) But running in STREAM mode, ONLY rule XXX fires. B) Like A, but the session clock is advanced by (at least) 1ms prior to calling fireAllRules(). 3) Either mode, both rules fire. I think that A2) is incorrect; why should passing another msec change the logic? Rule YYY matches by looking into the past, so the "rule activation delay" described in 2.5.2.2. Negative Patterns in Stream Mode should not apply because the default parameter for before is [1ms,...].