Jim Beam [https://community.jboss.org/people/jamesbeam] created the discussion
"Waiting for events to occur in a flow?" To view the discussion, visit: https://community.jboss.org/message/762276#762276 -------------------------------------------------------------- I'm a flow noob (...obviously) using 5.3. I have a few examples working and am trying to integrate some rules. I think I have a fundamental misunderstanding of rule tasks (maybe flow). Basically, I want to have a more complicated process and I want to only advance to the next node when a certain set of conditions are met. To set up a simple test, I have a flow, *start node->rule task->script task (writes "Done")-> end node*. I don't want to get to the script task until the process receives a message with text='hi' or text='yo'. I set up the following ruleflow group (I have a Message and MessageB class): rule "waitforit rule" ruleflow-group "waitforMessage" dialect "mvel" when not ($m : Message()) then System.out.println("no message yet"); end; rule "dotone" ruleflow-group "waitforMessage" dialect "mvel" when $m : Message(text=='hi' || text=='yo') then System.out.println("got message:"+$m.text); end; I tried: 1) I start the process and insert a MessageB object (i see hibernate update the session). I expected the first rule to fire, but it does not. Then I insert a Message object and the process/app just exits (WITHOUT) giving me the "Done" message (i have a thread.sleep after the insert - and no dispose). 2) So, I start the process and do a fireallrules, wait 10 seconds then insert a Message object. But, as soon as I fireallrules, I get the "no message yet" message AND the "Done" message. Nothing happens for 10 seconds and then the process ends. So, I have just one question....in 6 parts: a) in #1, why doesn't the first rule fire? b) and Why/How does the process exit without a "Done" message? (I don't dispose of the ksession in my code) c) in #2, why does the fireallrules immediatly trigger the "Done" message? d) as I read it in the documentation, the rule task should keep the process from advancing until all of the rules are no longer active. However, I thought the first rule would ensure that the group was active until a Message arives. Is that wrong? e) what is the right way to do this sort of thing? f) Can someone clue me into what I am doing wrong? Am I thinking about this in the wrong way? Thanks very much for your thoughts/comments. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/762276#762276] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034]
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