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I've forgot to attach the error message. I'm sorry.<br>
<br>
org.drools.runtime.rule.ConsequenceException:
java.lang.NullPointerException<br>
at
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23)<br>
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:943)<br>
at
org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:885)<br>
at
org.drools.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1065)<br>
at
org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:701)<br>
at
org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:678)<br>
at
org.drools.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(StatefulKnowledgeSessionImpl.java:195)<br>
at
org.drools.myexample.KnowledgeBaseManager.activate(KnowledgeBaseManager.java:75)<br>
at org.drools.myexample.Main.main(Main.java:51)<br>
Caused by: java.lang.NullPointerException<br>
at
org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedLeft(AfterEvaluatorDefinition.java:346)<br>
at
org.drools.rule.VariableRestriction.isAllowedCachedLeft(VariableRestriction.java:109)<br>
at
org.drools.rule.VariableConstraint.isAllowedCachedLeft(VariableConstraint.java:106)<br>
at
org.drools.common.TripleBetaConstraints.isAllowedCachedLeft(TripleBetaConstraints.java:205)<br>
at org.drools.reteoo.JoinNode.assertLeftTuple(JoinNode.java:114)<br>
at
org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:117)<br>
at
org.drools.reteoo.SingleLeftTupleSinkAdapter.createAndPropagateAssertLeftTuple(SingleLeftTupleSinkAdapter.java:78)<br>
at
org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:142)<br>
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:360)<br>
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:344)<br>
at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185)<br>
at
org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:146)<br>
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046)<br>
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001)<br>
at
org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:114)<br>
at
org.drools.base.DefaultKnowledgeHelper.insert(DefaultKnowledgeHelper.java:108)<br>
at
org.drools.myexample.rules.Rule_Insert_Watcher_Into_Knowledge_Base_0.consequence(Rule_Insert_Watcher_Into_Knowledge_Base_0.java:16)<br>
at
org.drools.myexample.rules.Rule_Insert_Watcher_Into_Knowledge_Base_0ConsequenceInvoker.evaluate(Rule_Insert_Watcher_Into_Knowledge_Base_0ConsequenceInvoker.java:18)<br>
at
org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:934)<br>
... 7 more<br>
13.08.2010 00:26:47 org.apache.activemq.ActiveMQMessageConsumer dispatch<br>
Exception while processing message: java.lang.NullPointerException<br>
java.lang.NullPointerException<br>
at
org.drools.base.extractors.BaseObjectClassFieldReader.getLongValue(BaseObjectClassFieldReader.java:136)<br>
at
org.drools.base.ClassFieldReader.getLongValue(ClassFieldReader.java:171)<br>
at
org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:323)<br>
at
org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:116)<br>
at
org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:112)<br>
at
org.drools.common.TripleBetaConstraints.isAllowedCachedRight(TripleBetaConstraints.java:216)<br>
at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:172)<br>
at
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:360)<br>
at
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:344)<br>
at
org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185)<br>
at
org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:146)<br>
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046)<br>
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001)<br>
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)<br>
at
org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:216)<br>
at
org.drools.myexample.KnowledgeBaseManager.addEvent(KnowledgeBaseManager.java:55)<br>
at org.drools.myexample.Main.insertEvent(Main.java:65)<br>
at
org.drools.myexample.jms.PublisherListener.onMessage(PublisherListener.java:40)<br>
at
org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1204)<br>
at
org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:131)<br>
at
org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:202)<br>
at
org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122)<br>
at
org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43)<br>
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
Source)<br>
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown
Source)<br>
at java.lang.Thread.run(Unknown Source)<br>
<br>
<br>
Am 12.08.2010 22:00, schrieb Mauricio Salatino:
<blockquote
cite="mid:AANLkTikv4WrEw8vEg2JVqC6wH8Yn+n1y2XKsZofTryz=@mail.gmail.com"
type="cite">can you explain what isn't working? can you share the
error with us??<br>
where are you doing the insert?in the RHS?<br>
<br>
<div class="gmail_quote">On Thu, Aug 12, 2010 at 4:56 PM, Tina
Vießmann <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:tviessmann@stud.hs-bremen.de">tviessmann@stud.hs-bremen.de</a>></span>
wrote:<br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi
again ...<br>
<br>
I would like to insert a new generated object into the knowledge base.<br>
It seems that<br>
insert (new Watcher())<br>
is working. But<br>
Watcher watcher = new Watcher();<br>
insert (watcher);<br>
isn't working?<br>
<br>
Why?<br>
<br>
Thank you for any explanations. :)<br>
<br>
Tina<br>
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<br clear="all">
<br>
-- <br>
- CTO @ <a moz-do-not-send="true" href="http://www.plugtree.com">http://www.plugtree.com</a>
<br>
- MyJourney @ <a moz-do-not-send="true"
href="http://salaboy.wordpress.com">http://salaboy.wordpress.com</a><br>
- Co-Founder @ <a moz-do-not-send="true" href="http://www.jbug.com.ar">http://www.jbug.com.ar</a><br>
<br>
- Salatino "Salaboy" Mauricio -<br>
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