[rules-users] A question about use sliding window with and without entry point

Hi, everyone, I just find that, insert an event into a entry point or insert it directly into session will cause different behaviour, is this expected? Here is the details: 1. drools run in stream mode and use pseudo clock 2. insert a MyEvent into entry-point "stream" and a MyEvent into session directly every 1 seconds, start at 500ms. 3. call fireAllRules every 1seconds, at second 1, second 2, etc 4. drools version 5.5.0.Final Below is the rule: package me.ycy.drools.test1.data import java.util.List declare MyEvent @role(event) @timestamp(timestamp) end rule "over 0.3s" when $list: List() from collect(MyEvent() over window:time(300ms)) then System.out.println("Rule: with in 0.3s --> " + $list); end rule "over 1s" when $list: List() from collect(MyEvent() over window:time(1s)) then System.out.println("Rule: with in 1s --> " + $list); end rule "over 3s" when $list: List() from collect(MyEvent() over window:time(3s)) then System.out.println("Rule: with in 3s --> " + $list); end rule "over 0.3s ep" when $list: List() from collect(MyEvent() over window:time(300ms) from entry-point "stream") then System.out.println("Rule: with in 0.3s use ep --> " + $list); end rule "over 1s ep" when $list: List() from collect(MyEvent() over window:time(1s) from entry-point "stream") then System.out.println("Rule: with in 1s use ep --> " + $list); end rule "over 3s ep" when $list: List() from collect(MyEvent() over window:time(3s) from entry-point "stream") then System.out.println("Rule: with in 3s use ep --> " + $list); end // ------- end of rule Finally, the output(just run 5 seconds) -------------- fire at 1000 --------------- Rule: with in 3s use ep --> [MyEvent(event 0,500)] Rule: with in 1s use ep --> [MyEvent(event 0,500)] Rule: with in 0.3s use ep --> [MyEvent(event 0,500)] Rule: with in 3s --> [MyEvent(event 0,500)] Rule: with in 1s --> [MyEvent(event 0,500)] Rule: with in 0.3s --> [] -------------- fire at 2000 --------------- Rule: with in 3s use ep --> [MyEvent(event 0,500), MyEvent(event 1,1500)] Rule: with in 1s use ep --> [MyEvent(event 0,500), MyEvent(event 1,1500)] Rule: with in 0.3s use ep --> [MyEvent(event 0,500), MyEvent(event 1,1500)] Rule: with in 3s --> [MyEvent(event 0,500), MyEvent(event 1,1500)] Rule: with in 1s --> [MyEvent(event 1,1500)] Rule: with in 0.3s --> [] -------------- fire at 3000 --------------- Rule: with in 3s use ep --> [MyEvent(event 0,500), MyEvent(event 1,1500), MyEvent(event 2,2500)] Rule: with in 1s use ep --> [MyEvent(event 0,500), MyEvent(event 1,1500), MyEvent(event 2,2500)] Rule: with in 0.3s use ep --> [MyEvent(event 0,500), MyEvent(event 1,1500), MyEvent(event 2,2500)] Rule: with in 3s --> [MyEvent(event 0,500), MyEvent(event 1,1500), MyEvent(event 2,2500)] Rule: with in 1s --> [MyEvent(event 2,2500)] Rule: with in 0.3s --> [] -------------- fire at 4000 --------------- Rule: with in 3s use ep --> [MyEvent(event 1,1500), MyEvent(event 2,2500), MyEvent(event 3,3500)] Rule: with in 1s use ep --> [MyEvent(event 1,1500), MyEvent(event 2,2500), MyEvent(event 3,3500)] Rule: with in 0.3s use ep --> [MyEvent(event 1,1500), MyEvent(event 2,2500), MyEvent(event 3,3500)] Rule: with in 3s --> [MyEvent(event 1,1500), MyEvent(event 2,2500), MyEvent(event 3,3500)] Rule: with in 1s --> [MyEvent(event 3,3500)] Rule: with in 0.3s --> [] -------------- fire at 5000 --------------- Rule: with in 3s use ep --> [MyEvent(event 2,2500), MyEvent(event 3,3500), MyEvent(event 4,4500)] Rule: with in 1s use ep --> [MyEvent(event 2,2500), MyEvent(event 3,3500), MyEvent(event 4,4500)] Rule: with in 0.3s use ep --> [MyEvent(event 2,2500), MyEvent(event 3,3500), MyEvent(event 4,4500)] Rule: with in 3s --> [MyEvent(event 2,2500), MyEvent(event 3,3500), MyEvent(event 4,4500)] Rule: with in 1s --> [MyEvent(event 4,4500)] Rule: with in 0.3s --> [] -- Best regards, Changyuan