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Here is the "drl generated string":<br><br>package com.tarification<br>import java.util.Date ;<br>import tarification.Produit ;<br>import java.text.SimpleDateFormat;<br><br>function Date getDate(String pStrDate)<br>{<br> SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");<br> return sdf.parse(pStrDate) ;<br>}<br><br>rule "Periode2"<br> when<br> $p : Produit(id == 1, eval( dDeb.before( getDate("01/06/2010") ) ) )<br> then<br> $p.setId(2) ; <br> $p.setPrix(100) ;<br> update( $p ); <br>end<br><br>rule "Periode1"<br> when<br> $p : Produit(id == 1, eval( dDeb.before( getDate("01/06/2010") ) ) )<br> then<br> $p.setId(2) ; <br> $p.setPrix(50) ;<br> update( $p ); <br>end<br><br><br>> Date: Wed, 10 Mar 2010 11:41:36 +0100<br>> From: wolfgang.laun@gmail.com<br>> To: rules-users@lists.jboss.org<br>> Subject: Re: [rules-users] Template rules & eval<br>> <br>> Can you post the "drl generated string" you are referring to?<br>> -W<br>> <br>> 2010/3/10 Bertrand Grottier <b_grottier@hotmail.com>:<br>> > Hello,<br>> ><br>> > I want to use template rules. Here is my .drt file:<br>> ><br>> > template header<br>> > ddeb<br>> > dfin<br>> > prix<br>> ><br>> > package com.tarification<br>> ><br>> > import java.util.Date ;<br>> ><br>> > import tarification.Produit ;<br>> > import java.text.SimpleDateFormat;<br>> ><br>> > function Date getDate(String pStrDate)<br>> > {<br>> > SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");<br>> > return sdf.parse(pStrDate) ;<br>> > }<br>> ><br>> > template "tarification_produit"<br>> ><br>> > rule "Periode@{row.rowNumber}"<br>> > when<br>> > $p : Produit(id == 1, eval( dDeb.before( getDate("@{ddeb}") ) ) )<br>> > then<br>> > $p.setId(2) ;<br>> > $p.setPrix(@{prix}) ;<br>> > update( $p );<br>> > end<br>> > end template<br>> ><br>> ><br>> > I modified an example provided with Drools but encounter the following<br>> > exception:<br>> ><br>> > Exception in thread "main" org.drools.RuntimeDroolsException: Exception<br>> > executing predicate<br>> > com.tarification.Rule_Periode2_0Predicate0Invoker@2110b61d<br>> > at<br>> > org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:279)<br>> > at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:143)<br>> > at<br>> > org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:42)<br>> > at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:147)<br>> > at<br>> > org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:42)<br>> > at<br>> > org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:185)<br>> > at<br>> > org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:146)<br>> > at<br>> > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046)<br>> > at<br>> > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001)<br>> > at<br>> > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)<br>> > at tarification.TestTemplate.executeExample(TestTemplate.java:49)<br>> > at tarification.TestTemplate.main(TestTemplate.java:26)<br>> > Caused by: java.lang.NullPointerException<br>> > at com.tarification.Rule_Periode2_0.predicate0(Rule_Periode2_0.java:9)<br>> > at<br>> > com.tarification.Rule_Periode2_0Predicate0Invoker.evaluate(Rule_Periode2_0Predicate0Invoker.java:23)<br>> > at<br>> > org.drools.rule.PredicateConstraint.isAllowed(PredicateConstraint.java:272)<br>> > ... 11 more<br>> ><br>> > I am puzzle because when I copy the drl generated string in a drl file,<br>> > everything works fine.<br>> ><br>> > Any idea ? Thank you in advance.<br>> ><br>> > Regards,<br>> > Benoît<br>> ><br>> ><br>> > ________________________________<br>> > Commander un cadeau en ligne discrètement? Voir la solution offerte par<br>> > Internet Explorer8<br>> > _______________________________________________<br>> > rules-users mailing list<br>> > rules-users@lists.jboss.org<br>> > https://lists.jboss.org/mailman/listinfo/rules-users<br>> ><br>> ><br>> <br>> _______________________________________________<br>> rules-users mailing list<br>> rules-users@lists.jboss.org<br>> https://lists.jboss.org/mailman/listinfo/rules-users<br> <br /><hr />Envie de naviguer sur Internet sans laisser de trace? <a href='http://clk.atdmt.com/FRM/go/207186970/direct/01/' target='_new'>La solution avec Internet Explorer 8</a></body>
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