<br> Seems like a bug, yes. Wanna try to fix and provide patch?<br><br>drools-core/src/main/java/org/drools/base/extractors/BaseObjectClassFieldExtractor.java<br><br> []s<br> Edson<br><br><br><div class="gmail_quote">
2008/12/2 techy <span dir="ltr"><<a href="mailto:techluver007@gmail.com">techluver007@gmail.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Hello Mark,<br>
Is this a bug?<br>
<div><div></div><div class="Wj3C7c"><br>
<br>
<br>
techy wrote:<br>
><br>
> I use <a href="http://4.0.7." target="_blank">4.0.7.</a><br>
><br>
><br>
> Mark Proctor wrote:<br>
>><br>
>> techy wrote:<br>
>>> I have rule that logical comparison with two Float fields(like price <<br>
>>> bidPrice || price >= bidPrice ). I get following exception if one of<br>
>>> field<br>
>>> is null. Is this expected behaviour? Please clarify. Thanks<br>
>>><br>
>> what version of drools are you using? Nullpointers on direct fields<br>
>> should not happen on drools 4.0.5, or 5.0M3.<br>
>><br>
>> Mark<br>
>>><br>
>>> Caused by: java.lang.NullPointerException<br>
>>> at<br>
>>> org.drools.base.extractors.BaseObjectClassFieldExtractor.getFloatValue(BaseObjectClassFieldExtractor.java:84)<br>
>>> at<br>
>>> org.drools.base.ClassFieldExtractor.getFloatValue(ClassFieldExtractor.java:191)<br>
>>> at<br>
>>> org.drools.base.evaluators.FloatFactory$FloatLessEvaluator.evaluate(FloatFactory.java:250)<br>
>>> at<br>
>>> org.drools.rule.VariableRestriction.isAllowed(VariableRestriction.java:73)<br>
>>> at<br>
>>> org.drools.rule.VariableConstraint.isAllowed(VariableConstraint.java:67)<br>
>>> at org.drools.rule.AndConstraint.isAllowed(AndConstraint.java:47)<br>
>>> at org.drools.rule.OrConstraint.isAllowed(OrConstraint.java:50)<br>
>>> at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)<br>
>>> at<br>
>>> org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22)<br>
>>> at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145)<br>
>>> at<br>
>>> org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:318)<br>
>>> at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145)<br>
>>> at<br>
>>> org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22)<br>
>>> at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:145)<br>
>>> at<br>
>>> org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:318)<br>
>>> at<br>
>>> org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:162)<br>
>>> at org.drools.reteoo.Rete.assertObject(Rete.java:175)<br>
>>> at<br>
>>> org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192)<br>
>>> at<br>
>>> org.drools.reteoo.ReteooWorkingMemory.doInsert(ReteooWorkingMemory.java:71)<br>
>>> at<br>
>>> org.drools.common.AbstractWorkingMemory.update(AbstractWorkingMemory.java:1287)<br>
>>> at<br>
>>> org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:103)<br>
>>><br>
>><br>
>><br>
>> _______________________________________________<br>
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>> <a href="mailto:rules-users@lists.jboss.org">rules-users@lists.jboss.org</a><br>
>> <a href="https://lists.jboss.org/mailman/listinfo/rules-users" target="_blank">https://lists.jboss.org/mailman/listinfo/rules-users</a><br>
>><br>
>><br>
><br>
><br>
<br>
--<br>
</div></div>View this message in context: <a href="http://www.nabble.com/NullPointerException-with-float-field-tp20740799p20798617.html" target="_blank">http://www.nabble.com/NullPointerException-with-float-field-tp20740799p20798617.html</a><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br> Edson Tirelli<br> JBoss Drools Core Development<br> JBoss, a division of Red Hat @ <a href="http://www.jboss.com">www.jboss.com</a><br>