[
http://jira.codehaus.org/browse/ESPER-402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=192873#action_192873 ]
Thomas Bernhardt commented on ESPER-402:
----------------------------------------
i received the ConcurrentMoficationException using esper 3.1.0 for the
following simple pattern. will there a quick patch for this exception?
what is the alternative to achieve the same output from the following
pattern? thanks!
pattern:
every a=A -> (not b=B(a.stringAttr=b.stringAttr) and not
c=C(a.stringAttr=c.stringAttr)) and timer:interval(10)
events:
event[A0]: longAttr(0),doubleAttr(0), stringAttr(1), timeAttrInMilli(0)
event[B0]: longAttr(0),doubleAttr(0), stringAttr(1), timeAttrInMilli(0)
event[A1]: longAttr(0),doubleAttr(0), stringAttr(11), timeAttrInMilli(0)
event[C0]: longAttr(0),doubleAttr(0), stringAttr(11), timeAttrInMilli(0)
event[A2]: longAttr(0),doubleAttr(0), stringAttr(111), timeAttrInMilli(0)
> Pattern with two NOT-operators connected by AND-operator throws ConcurrentModificationException (1 thread)
> ----------------------------------------------------------------------------------------------------------
>
> Key: ESPER-402
> URL:
http://jira.codehaus.org/browse/ESPER-402> Project: Esper
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.2
> Reporter: Thomas Bernhardt
> Priority: Minor
> Attachments: TestCoModificationException.java
>
>
> Can be reproduced as below.
> Note that a NOT-operator does not likely have meaningful behavior unless combined with a timer, since looking for the absence of an event makes sense only when given a time period how long to look for, see doc. There assigned "minor" priority.
> public void testIt()
> {
> EPServiceProvider engine = EPServiceProviderManager.getDefaultProvider();
> engine.getEPAdministrator().getConfiguration().addEventType("CallWaiting", SupportBean_A.class);
> engine.getEPAdministrator().getConfiguration().addEventType("CallFinished", SupportBean_B.class);
> engine.getEPAdministrator().getConfiguration().addEventType("CallPickedUp", SupportBean_C.class);
> String pattern = " insert into NumberOfWaitingCalls(calls)\n" +
> " select count(*)\n" +
> " from pattern[every call=ConcurrentModificationExceptionCallWaiting ->\n" +
> " (not CallFinished(id=call.id) and\n" +
> " not CallPickedUp(id=call.id))]";
> engine.getEPAdministrator().createEPL(pattern);
> engine.getEPRuntime().sendEvent(new SupportBean_A("A1"));
> engine.getEPRuntime().sendEvent(new SupportBean_B("B1"));
> engine.getEPRuntime().sendEvent(new SupportBean_C("C1"));
> }
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://jira.codehaus.org/secure/Administrators.jspa-
For more information on JIRA, see:
http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe from this list, please visit:
http://xircles.codehaus.org/manage_email
