Esper and list and window in esper

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anjanishrivastava
Posts: 17
Joined: Fri Jan 18, 2013 2:34 am

Esper and list and window in esper

Post by anjanishrivastava » Tue Mar 05, 2013 6:12 am

Hi ,
Matt Sir/friends
I am stuck in one place I need ur help

1>>> running my application Prevatest
2>>>running fine without any error
3>>>Requirement is Read all data of ReadCycle

Then For that One client is ruuning perfectly ok (I think)

Now In ESPER I have created ine window put all data in window then running from Statement AwareUpdate as listener
but I am getting one error =======================like this==




///////////////////////anjani prevatagPrevaTagEvent [id=10017]
\\\\\\\\\\\\anjani tag[B@1364b53
15:27:53,746 ERROR com.espertech.esper.core.service.StatementResultServiceImpl:395 - Unexpected exception invoking listener update method on listener class '' : NullPointerException : null
java.lang.NullPointerException
at org.preva.sensor.PrevaApp$1.update(PrevaApp.java:153)
at com.espertech.esper.core.service.StatementResultServiceImpl.dispatchInternal(StatementResultServiceImpl.java:389)
at com.espertech.esper.core.service.StatementResultServiceImpl.processDispatch(StatementResultServiceImpl.java:249)
at com.espertech.esper.core.service.StatementResultServiceImpl.execute(StatementResultServiceImpl.java:235)
at com.espertech.esper.core.service.UpdateDispatchViewBase.execute(UpdateDispatchViewBase.java:75)
at com.espertech.esper.core.service.UpdateDispatchFutureSpin.execute(UpdateDispatchFutureSpin.java:85)
at com.espertech.esper.dispatch.DispatchServiceImpl.dispatchFromQueue(DispatchServiceImpl.java:52)
at com.espertech.esper.dispatch.DispatchServiceImpl.dispatch(DispatchServiceImpl.java:31)
at com.espertech.esper.core.service.EPRuntimeImpl.dispatch(EPRuntimeImpl.java:1238)
at com.espertech.esper.core.service.EPRuntimeImpl.processThreadWorkQueue(EPRuntimeImpl.java:816)
at com.espertech.esper.core.service.EPRuntimeImpl.processWrappedEvent(EPRuntimeImpl.java:477)
at com.espertech.esper.core.service.EPRuntimeImpl.processEvent(EPRuntimeImpl.java:438)
at com.espertech.esper.core.service.EPRuntimeImpl.sendEvent(EPRuntimeImpl.java:197)
at org.rifidi.edge.services.EsperReceiver.run(EsperReceiver.java:81)
at java.lang.Thread.run(Unknown Source)
15:27:53,746 INFO org.preva.edge.adapter.udp.autonomous.PrevaTagHandler:40 - Event:[TAG READ EVENT: tag:PrevaTagEvent [id=10017]|readerID:1|antennaID:0|timestamp:1362477473746]
=events==org.rifidi.edge.notification.ReadCycle@b7ad3
15:27:53,746 INFO org.preva.edge.adapter.udp.autonomous.PrevaAutoMessageProcessingStrategy:199 - Date and Time Tue Mar 05 15:27:53 IST 2013
15:27:53,746 INFO org.preva.edge.adapter.udp.autonomous.PrevaAutoMessageProcessingStrategy:200 - ReaderID---------1
15:27:53,746 INFO org.preva.edge.adapter.udp.autonomous.
PrevaAutoMessageProcessingStrategy:201 - Tag seen--------- 10018



WHY?

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