May 2010 - rules-users - Jboss List Archives

by Puneet duggal

hi friends , I am getting the error while executing the business rule [2010-05-17 09:37:22,419] [FATAL] Error occured while creating rules package for parameter : 568 (BusinessRuleServiceImpl.java:2285) org.drools.RuntimeDroolsException: unable to determine ValueType for Class [class com.fpl.dsm.busrules.parameters.Para_568] what this mean?

14 years, 6 months

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Is it possible to access created Object inside RHS???

by Kuttiraja

Hi, I have some application using Drools. Sample rule rule "rule 1" when //some condition then Object a = new Object() //Do Something with Object end is it possible to use this newly created object from the Application? Thanks in advance Kutti -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Is-it-possible-to-acc... Sent from the Drools - User mailing list archive at Nabble.com.

14 years, 6 months

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gwt-console

by Shanika Wijerathna

Hi Im new to drools. Im trying to get gwt-console work with jboss server. So I downloaded the gwt-console code from svn ( http://anonsvn.jboss.org/repos/soag/bpm-console/trunk) and when I try excecute mvn install command from trunk it gives me following error. I tried googling but I couldn't find a way to get rid of this error. And also in forums they say that we need to change pom.xml to use drools as defult profile. Where I can change it? Thanks alot if some one can help me. Im trying to start learning jboss drools and i have already installed jboss and Guvnor. shanika@shanika-laptop:~/JBossDrools/gwtConsole$ mvn -version Maven version: 2.0.9 Java version: 1.6.0_0 OS name: "linux" version: "2.6.28-18-generic" arch: "i386" Family: "unix" shanika@shanika-laptop:~/JBossDrools/gwtConsole$ mvn install [INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [ERROR] FATAL ERROR [INFO] ------------------------------------------------------------------------ [INFO] Error building POM (may not be this project's POM). Project ID: org.jboss.bpm:gwt-console POM Location: /home/shanika/JBossDrools/gwtConsole/gui/war/pom.xml Reason: Cannot read project model from interpolating filter of serialized version. for project org.jboss.bpm:gwt-console at /home/shanika/JBossDrools/gwtConsole/gui/war/pom.xml [INFO] ------------------------------------------------------------------------ [INFO] Trace org.apache.maven.reactor.MavenExecutionException: Cannot read project model from interpolating filter of serialized version. for project org.jboss.bpm:gwt-console at /home/shanika/JBossDrools/gwtConsole/gui/war/pom.xml at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:378) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:292) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: org.apache.maven.project.InvalidProjectModelException: Cannot read project model from interpolating filter of serialized version. for project org.jboss.bpm:gwt-console at /home/shanika/JBossDrools/gwtConsole/gui/war/pom.xml at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:882) at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506) at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:198) at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:583) at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:461) at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:535) at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:535) at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:365) ... 11 more Caused by: org.apache.maven.project.interpolation.ModelInterpolationException: Cannot read project model from interpolating filter of serialized version. at org.apache.maven.project.interpolation.RegexBasedModelInterpolator.interpolate(RegexBasedModelInterpolator.java:114) at org.apache.maven.project.DefaultMavenProjectBuilder.processProjectLogic(DefaultMavenProjectBuilder.java:1016) at org.apache.maven.project.DefaultMavenProjectBuilder.buildInternal(DefaultMavenProjectBuilder.java:878) ... 18 more Caused by: org.codehaus.plexus.util.xml.pull.XmlPullParserException: markup not allowed inside attribute value - illegal < (position: TEXT seen ...<filter token="comment.left" value="<... @332:54) at org.codehaus.plexus.util.xml.pull.MXParser.parseAttribute(MXParser.java:2030) at org.codehaus.plexus.util.xml.pull.MXParser.parseStartTag(MXParser.java:1799) at org.codehaus.plexus.util.xml.pull.MXParser.nextImpl(MXParser.java:1127) at org.codehaus.plexus.util.xml.pull.MXParser.next(MXParser.java:1093) at org.codehaus.plexus.util.xml.Xpp3DomBuilder.build(Xpp3DomBuilder.java:187) at org.codehaus.plexus.util.xml.Xpp3DomBuilder.build(Xpp3DomBuilder.java:94) at org.apache.maven.model.io.xpp3.MavenXpp3Reader.parsePluginExecution(MavenXpp3Reader.java:3144) at org.apache.maven.model.io.xpp3.MavenXpp3Reader.parsePlugin(MavenXpp3Reader.java:2901) at org.apache.maven.model.io.xpp3.MavenXpp3Reader.parseBuild(MavenXpp3Reader.java:753) at org.apache.maven.model.io.xpp3.MavenXpp3Reader.parseModel(MavenXpp3Reader.java:2224) at org.apache.maven.model.io.xpp3.MavenXpp3Reader.read(MavenXpp3Reader.java:4422) at org.apache.maven.model.io.xpp3.MavenXpp3Reader.read(MavenXpp3Reader.java:4433) at org.apache.maven.project.interpolation.RegexBasedModelInterpolator.interpolate(RegexBasedModelInterpolator.java:105) ... 20 more [INFO] ------------------------------------------------------------------------ [INFO] Total time: < 1 second [INFO] Finished at: Tue May 18 09:48:47 IST 2010 [INFO] Final Memory: 2M/67M [INFO] ------------------------------------------------------------------------ Thanks Shanika

14 years, 6 months

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Guvnor M1 and jBOSS AS 5.1

by Kessler Bortoluzzi, Mariana

Hi everyone, I'm having trouble deploying Guvnor M1 in jBOSS AS 5.1.0.GA. When I start the AS I become a long list of errors and at the end there is the message: DEPLOYMENTS IN ERROR: Deployment "vfsfile:/C:/Programme/JBOSS/jboss-5.1.0.GA/server/default/deploy/d rools-guvnor.war/" is in error due to the following reason(s): javax.management. InvalidAttributeValueException: Set attribute has class class org.jboss.securit y.integration.JNDIBasedSecurityManagement loaded from BaseClassLoader@113ca76{vf sfile:/C:/Programme/JBOSS/jboss-5.1.0.GA/server/default/conf/jboss-servi ce.xml} that is not assignable to attribute class interface org.jboss.security.ISecurity Management loaded from BaseClassLoader@f47144{vfsfile:/C:/Programme/JBOSS/jboss- 5.1.0.GA/server/default/deploy/drools-guvnor.war/} Do any of you know what the problem might be? best regards, Mariana

14 years, 6 months

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NullPointerException @ modify()

by H.C.

Hi, I am getting a very puzzling NullPointerException when I call modify() on my object in working memory. I have the following rule: rule "Assign awardable activity to default context" ruleflow-group "select qualified activity" when $context : ResultContext( activity != null && activity.qualifiedActivity == null ) $candidate : CandidateMatch( member != null && match != null && $awardable : match && eval( match instanceof QualifiedActivity) && eval(((QualifiedActivity)$awardable).isAwardable())) $qa : QualifiedActivity() from $candidate.match then modify($context){ getActivity().setQualifiedActivity($qa); } end The NullPointerException happens right at modify($context). I can clearly see the $context object in working memory and this rule wouldn't fire without this object having a value anyway. Here is some activation info for what it's worth: [Activation rule=Assign awardable activity to default context, tuple=[fact 0:129:21218203:1244484333:141:QualifiedActivity[groupID=TRGT41,activityID=OHC.Self.Physical,evaluateGoal=false,shared=false,awardable=true]] [fact 0:54:30003599:-98318528:138:com.biperf.optumhealth.domain.CandidateMatch@fa2943b2] [fact 0:1:24821875:24821875:1:com.biperf.optumhealth.rules.ResultContext@17ac073] ] Stacktrace: org.drools.runtime.rule.ConsequenceException: java.lang.NullPointerException at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:23) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:980) at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:917) at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1126) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:697) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:663) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:200) at com.biperf.optumhealth.service.impl.RuleEngineSession.execute(RuleEngineSession.java:89) at com.biperf.optumhealth.rules.qualifiedactivity.TestQualifiedActivity.testFindQualifiedActivity(TestQualifiedActivity.java:88) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:59) at org.junit.internal.runners.MethodRoadie.runTestMethod(MethodRoadie.java:98) at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:79) at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:87) at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:77) at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:42) at org.junit.internal.runners.JUnit4ClassRunner.invokeTestMethod(JUnit4ClassRunner.java:88) at org.junit.internal.runners.JUnit4ClassRunner.runMethods(JUnit4ClassRunner.java:51) at org.junit.internal.runners.JUnit4ClassRunner$1.run(JUnit4ClassRunner.java:44) at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:27) at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:37) at org.junit.internal.runners.JUnit4ClassRunner.run(JUnit4ClassRunner.java:42) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:46) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.NullPointerException at org.drools.reteoo.RightInputAdapterNode.retractLeftTuple(RightInputAdapterNode.java:153) at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:131) at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:42) at org.drools.reteoo.ExistsNode.retractLeftTuple(ExistsNode.java:356) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.doPropagateRetractLeftTuple(CompositeLeftTupleSinkAdapter.java:159) at org.drools.reteoo.CompositeLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(CompositeLeftTupleSinkAdapter.java:80) at org.drools.reteoo.FromNode.retractLeftTuple(FromNode.java:176) at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:131) at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateRetractLeftTupleDestroyRightTuple(SingleLeftTupleSinkAdapter.java:54) at org.drools.reteoo.FromNode.retractLeftTuple(FromNode.java:176) at org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:234) at org.drools.reteoo.EntryPointNode.retractObject(EntryPointNode.java:195) at org.drools.common.AbstractWorkingMemory.modifyRetract(AbstractWorkingMemory.java:1296) at org.drools.base.DefaultKnowledgeHelper.modifyRetract(DefaultKnowledgeHelper.java:184) at org.drools.base.DefaultKnowledgeHelper.modifyRetract(DefaultKnowledgeHelper.java:180) at com.biperf.optumhealth.Rule_Assign_awardable_activity_to_default_context_0.consequence(Rule_Assign_awardable_activity_to_default_context_0.java:21) at com.biperf.optumhealth.Rule_Assign_awardable_activity_to_default_context_0ConsequenceInvoker.evaluate(Rule_Assign_awardable_activity_to_default_context_0ConsequenceInvoker.java:28) at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:971) ... 29 more -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/NullPointerException-... Sent from the Drools - User mailing list archive at Nabble.com.

14 years, 6 months

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Access to variables form sub-flows

by pvm

hi, i've create a working set of rules via the Eclipse IDE. I've now factored my rule set into a sub flow that i want to call twice - each time with differrent parameters. i've created the sub-flow .rf file, and added a sub-flow call to it in my main flow. I've defined variables for the sub flow by clicking on the background and using properties. BUT... I can't access the variable in the sub flow rule groups! e.g. i define "isManager" as a variable, and then i write: if Agent() // there are plenty of these objects in my knowledge base... then system.out.println("found an agent, and the local variable is " + isManager); i get an error "isManager cannot be resolved" ? How am i supposed to access a variable in the sub flow? thanks all... -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Access-to-variables-f... Sent from the Drools - User mailing list archive at Nabble.com.

14 years, 6 months

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get image of flow from xml

by Daniel Gimenes

I'm trying to show an image of a workflow on a web page, based on it's xml. I've first tried to do this by using drools-eclipse project functionality of export workflows as images, but gave up because the project has many dependencies. Then I tried the drools-guvnor, which do exactly what I want, but it's developed using GWT. My problem i'm having now is with using drools-guvnor jar in my GWT project, and then i'll still have to integrate it with SEAM. I want to know if this can be done. Have someone already done this before? Is there a better way?

14 years, 6 months

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Re: [rules-users] Drools5 in tomcat 5

by Rubén Marrero

thanks a lot! I'm trying to setup a decision service, _without_ having to code in java. I'm kind of swamped at the moment in other stuff but will get back to this ASAP and report back. Thanks again, Rubén De: "Jervisliu" <jliu(a)redhat.com> Para: "Rules Users List" <rules-users(a)lists.jboss.org> Enviados: Lunes, 17 de Mayo 2010 1:25:32 Asunto: Re: [rules-users] Drools5 in tomcat 5 Examples below shows how to use drools Camel integration. With Camel integration, you can host drools rule engine as a Camel service. The service can be based on Web services, REST, JMS or whatever capabilities Camel offers. http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-pipeline... You can also use Drools pipeline to expose a drools rule engine as service. For example, example below is exposing Drools through JMS: http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-pipeline... If you do a google search, you can also find some nice docs on how to use drools-pipeline to expose drools engine as web services etc. Hope this helps, Jervis Rubén Marrero wrote: > Oh! > > I'm tempted to ask _why_ did anyone think that having a great web > interface where you can create, test, store & version (I would think > that at least exposing and securing) business tulers simply should > fall short of _executing_ said rules? If Guvnor (or some other > component, I'm learning here) could help me outsource my business > rules, I could use in no matter what platform/ language. All the java > coders could embed it and the rest of us could just execute it. > > But I won't ask :) > > Instead let me rephrase my original question. What's the best way to > setup a remote server, that can receive my data, go through the rules, > and return a response? That does not involve java coding? drools-server? > > Thanks, > Rubén > ------------------------------------------------------------------------ > *De: *"Esteban Aliverti" <esteban.aliverti(a)gmail.com> > *Para: *"Rules Users List" <rules-users(a)lists.jboss.org> > *CC: *"Diego Fabian Lopez Ruiz" <diego(a)lingo.mx> > *Enviados: *Viernes, 14 de Mayo 2010 12:09:35 > *Asunto: *Re: [rules-users] Drools5 in tomcat 5 > > Bad news! Guvnor doesn't execute the rules! It only acts as a > repository! You can create your rules, test your rules and versioning > them too, but if you want to execute them in a real business scenario, > you have to code it. I know Drools already has some modules to do what > you are trying to achieve, they are drools-pipeline (Which can use > camel) or even drools-server (which is a simple servlet that executes > commands). Unfortunately I'm not an expert on those modules, but you > can always ask here for help. > > Best, > > 2010/5/14 Rubén Marrero <ruben(a)lingo.mx <mailto:ruben@lingo.mx>> > > The idea is to use Guvnor as a REST-accessible BRMS. > > We'll design, edit, test rules in guvnor, then execute them from > the PHP web app in the background (with cURL or something ) or > maybe we'll use proper webservices, as long as we can keep thing > simple. > > Since we are already using tomcat 5 as our reporting endpoint, > we'd like to just add the guvnor as a web app, as long as guvnor > can execute the rules we setup in the nice web interface and > respond with a json package to a REST json request. > > Guvnor _does_ execute rules, right? :-) > > I'll try removing the jars you mention and then report back. > > Thx, > Rubén > ------------------------------------------------------------------------ > *De: *"Esteban Aliverti" <esteban.aliverti(a)gmail.com > <mailto:esteban.aliverti@gmail.com>> > *Para: *"Rules Users List" <rules-users(a)lists.jboss.org > <mailto:rules-users@lists.jboss.org>> > *Enviados: *Viernes, 14 de Mayo 2010 6:49:53 > *Asunto: *Re: [rules-users] Drools5 in tomcat 5 > > > I didn't test Guvnor in Tomcat 5, but I did it in Tomcat 6. The > only thing you need to do is to remove el-ri-xxx.jar and > el-api-xxx.jar from Guvnors libraries (open the war file, browse > to WEB-INF/lib and remove the files). This is because Tomcat > already provides this libraries. That is the only thing I have to > do when I want to use Guvnor deployed in a Tomcat. > And remember that Drools is just a framework (a bunch of jars if > you want), so you can use it everywhere: console app, desktop app, > web app. Guvnor is a BRMS that you can use to create your rules, > manage their life cycle and set as main repository (You can do > more things too). It is important to make this distinction, maybe > you just want to use drools expert/flow/fusion and not Guvnor. > > Best, > > 2010/5/14 Rubén Marrero <ruben(a)lingo.mx <mailto:ruben@lingo.mx>> > > Hi all: > > I want to add drools to a php application. Currently we are > using Tomcat 5 to execute BIRT reports and works great. > > We want to keep using Tomcat (this version in particular) and > just drop the Drools WAR so to disturb as little as possible > our current setup. > > Is Tomcat 5 a supported platform to run Drools 5? any pointers > to current docs? > > Thanks in advance, > Rubén > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > -- > XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX > > Esteban Aliverti > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > -- > XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX > > Esteban Aliverti > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > ------------------------------------------------------------------------ > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

14 years, 6 months

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issue with drools-container and related (in it's classpath) projects

by kicho

Hi all! I have a question regardless drools-container eclipse projects from svn trunk (drools-spring project to be precise). I've noticed that that particular project is now missing .classpath and .project files. I have been reading posts about drools and spring integration and found them interesting, but now i don't know what projects from the svn i need to checkout, since the mentioned files are missing. Is there any particular reason for that? Thanks in advance, kicho -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/issue-with-drools-con... Sent from the Drools - User mailing list archive at Nabble.com.

14 years, 6 months

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CHR 2010: Call for Participation

by Peter Van Weert

CALL FOR PARTICIPATION CHR 2010 7th International Workshop on Constraint Handling Rules associated with ICLP 2010 (part of FLoC 2010) Edinburgh, Scotland, 20 July 2010 http://dtai.cs.kuleuven.be/CHR/CHR2010/ HIGHLIGHTS * newcomers' welcome to CHR tutorial by Thom Frühwirth * invited talk on the JBoss Drools business rules platform by Mark Proctor * invited talk by Matt Lilley of SecuritEase, a leading stock broking system * introduction to CHRiSM, a CHR-based probabilistic formalism, by Jon Sneyers * presentation of the six accepted papers + two demos INTRODUCTION The Constraint Handling Rules (CHR) language has become a major declarative specification formalism and implementation language for constraint reasoning algorithms and applications. Algorithms are often specified using inference rules, rewrite rules, sequents, proof rules, or logical axioms that can be directly written in CHR. Its clean semantics facilitates program design, analysis, and transformation. See the CHR website for more information: http://dtai.cs.kuleuven.be/CHR/ PROGRAM The CHR 2010 workshop offers a very attractive and varied program. Next to our accepted technical papers, we have two invited speakers: Mark Proctor from the JBoss Drools project, a major open-source business rule platform, and Matt Lilley from SecuritEase, a leading stock broking dealing and settlement system, and one of the most prominent industry users of Prolog and CHR. Other highlights are the first practical confluence checker for CHR, and several application-oriented presentations, including two demos by students from the University of Ulm on using CHR with a multi-touch interface: one for automated music generation, and one aimed at providing long-term routing for fully autonomous sailing boats (in cooperation with the Roboat project). Because many FLoC attendants will be new to CHR, we included two additional introductionary presentations: Thom Frühwirth will give a broad tutorial on CHR in general, and Jon Sneyers will introduce the recent CHR-based probabilistic formalism CHRiSM (also presented at the main ICLP conference). The full workshop's program is available at: http://dtai.cs.kuleuven.be/CHR/CHR2010/programme.shtml REGISTRATION Registration for the workshop can be done online at: http://www.floc-conference.org/registration.html Early registration ends 17 May. ORGANIZATION Program Committee: * Sebastian Brand, NICTA and University of Melbourne, Australia * Henning Christiansen, Roskilde University, Denmark * Verónica Dahl, Simon Fraser University, Canada * Leslie De Koninck, NICTA and University of Melbourne, Australia (co-chair) * Thom Frühwirth, Ulm University, Germany * Marco Gavanelli, University of Ferrara, Italy * Rémy Haemmerlé, Universidad Politécnica de Madrid, Spain * Maria-Chiara Meo, "Gabriele d'Annunzio" University, Italy * Paolo Pilozzi, K.U.Leuven, Belgium * Frank Raiser, Ulm University, Germany * Peter Van Weert, K.U.Leuven, Belgium (co-chair) * Jairson Vitorino, Federal University of Pernambuco, Brazil * Armin Wolf, Fraunhofer FIRST, Germany Workshop Coordinators: Contact: chr2010(a)easychair.org Peter Van Weert Department of Computer Science, K.U.Leuven Leuven, Belgium http://people.cs.kuleuven.be/~peter.vanweert/ Leslie De Koninck National ICT Australia, Victoria Research Laboratory Dept of Computer Science and Software Engineering, University of Melbourne Melbourne, Australia

14 years, 6 months

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rules-users May 2010