Re: [rules-users] CompositiveClassLoader$CachingLoader$load method intermittently hangs
We are also experiencing the same problems using 5.x and it is causing us big problems. I haven't had time to try it yet but do any developers know whether we would be safe to change the HashMap the CompositiveClassLoader is using to a ConcurrentHashMap? thanks Steve --- Steven Williams On Wed, Mar 19, 2014 at 12:31 AM, mikerod mjr4...@gmail.com wrote: I cannot easily reproduce an issue that I'm seeing. This is an intermittent issue that happens probably 3% of the time or less. This is observed behavior in * Drools v5.6.0.Final, using * Janino compiler v2.5.16 transitively Drools brings * mvel2 v2.1.8.Final We have an environment that loads around 10 different KnowledgeBases into a list. Then one-by-one a single StatefulKnowledgeSession is created for a single KnowledgeBase, facts are inserted, and then fireAllRules is called. Every so often, we noticed that we were getting what seemed to be ininite looping behavior for during either insertion time or fireAllRules time. When we subsequently re-run the *same* session with the *same* KnowledgeBase and the *same* facts inserted, it was successful and finished in milliseconds (the average for our successful runs). We have repeatedly seen this behavior of 1 failure, followed by a re-run that is successful. We were able to attach a profiler to several of these hung sessions to determine what was happening. It turns out that in both the scenario where we saw a hang up on fact insertion and on fireAllRules call, the thread dump was the same. The stack looks like: ``` main - Thread t@1 java.lang.Thread.State: RUNNABLE at java.util.HashMap.getEntry(HashMap.java:347) at java.util.HashMap.containsKey(HashMap.java:335) at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:244) at org.drools.util.CompositeClassLoader$CachingLoader.load(CompositeClassLoader.java:237) at org.drools.util.CompositeClassLoader.loadClass(CompositeClassLoader.java:88) at java.lang.ClassLoader.loadClass(ClassLoader.java:247) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:247) at org.mvel2.ParserConfiguration.checkForDynamicImport(ParserConfiguration.java:163) at org.mvel2.ParserConfiguration.hasImport(ParserConfiguration.java:191) at org.mvel2.ParserContext.hasImport(ParserContext.java:360) at org.mvel2.ParserContext.isVariableVisible(ParserContext.java:715) at org.mvel2.compiler.ExpressionCompiler.verify(ExpressionCompiler.java:394) at org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:250) at org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62) at org.mvel2.MVEL.compileExpression(MVEL.java:810) at org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:417) at org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238) at org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:224) at org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:208) at org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:175) at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:133) at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:302) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:254) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:366) at org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38) at org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:207) at org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:179) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:247) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:950) at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:263) at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:228) at org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:223) application-stack at some.drools.generated.rule.package.Rule_drools-generated2 at some.drools.generated.rule.package.Rule_drools-generated1 at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1282) - locked 656dd9a0 (a org.drools.common.DefaultAgenda
Re: [rules-users] Jetty NoSuchMethodError Lorg/eclipse/jdt/core/compiler/CategorizedProblem
I noticed this same error when attempting to use the Run Jetty Run eclipse plugin with Jetty 6.1.26. Changing it to use Jetty 7.5.1 fixed the problem. We still use version 6 on our test servers without a problem though so I just put it down to some classpath issue with the plug-in. --- Steven Williams On Wed, Nov 27, 2013 at 3:01 AM, captainrhino graeme.kitc...@axa-travel-insurance.com wrote: I am running some drools application code through Jetty and I get the following error. I'm guessing its something to do with a conflicting jar or dependency? Any help would be much appreciated. It does not happen when I run it through tomcat 7. java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler$3.acceptResult(EclipseJavaCompiler.java:375) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:335) at org.drools.compiler.commons.jci.compilers.EclipseJavaCompiler.compile(EclipseJavaCompiler.java:405) at org.drools.compiler.commons.jci.compilers.AbstractJavaCompiler.compile(AbstractJavaCompiler.java:49) at org.drools.compiler.rule.builder.dialect.java.JavaDialect.compileAll(JavaDialect.java:405) at org.drools.compiler.compiler.DialectCompiletimeRegistry.compileAll(DialectCompiletimeRegistry.java:46) at org.drools.compiler.compiler.PackageRegistry.compileAll(PackageRegistry.java:107) at org.drools.compiler.compiler.PackageBuilder.compileAll(PackageBuilder.java:1218) at org.drools.compiler.compiler.PackageBuilder.compileAllRules(PackageBuilder.java:955) at org.drools.compiler.compiler.PackageBuilder.addPackage(PackageBuilder.java:943) at org.drools.compiler.compiler.PackageBuilder.addPackageFromDrl(PackageBuilder.java:507) at org.drools.compiler.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:714) at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:51) at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:40) -- View this message in context: http://drools.46999.n3.nabble.com/Jetty-NoSuchMethodError-Lorg-eclipse-jdt-core-compiler-CategorizedProblem-tp4026946.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] How to use type-safe enums in rule condition
We use drools for validation rules in our application. Some of these rules are dependent on which CRUD operation is being performed at the time, so as part of our validation aspect we insert a CrudMode enum with the current action (by annotating the advised method). e.g. @Validate(validators = BusinessRulesValidator.class, mode = CREATE) public void create(@DTO SomeDTO incomingDto) In our rules we can then go: CrudMode(this == CrudMode.CREATE) The second way we use it (and this one I don't like so much) is that our validation aspect runs both before and after a method (PRE and POST). We use an agenda-group to to indicate which phase a rule should be included which works fine, however we were finding that some conditions were relatively expensive which had performance implications. Our solution was to also include a ValidationPhase enum as a fact and use that to short-circuit the rules. I reckon there is probably a better way to achieve this however we didn't spend a lot of time thinking about it. cheers Steve --- Steven Williams On Thu, Nov 14, 2013 at 12:40 AM, Wolfgang Laun wolfgang.l...@gmail.comwrote: Just curiosity. On 13/11/2013, Steven Williams stevearoo...@gmail.com wrote: I use something like the following in rules to good effect: Country( this == Country.USA ) Granted, you can add any number of attributes to an enum so that it's just another way of writing a static set of bean objects. But is there a good effect to be had from a pattern that merely ascertains the presence of an enum instance in the Working Memory? Other than this, a pattern like City( country == Country.USA ) doesn't require the insertion of the Country enums. Cheers Wolfgang ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] How to use type-safe enums in rule condition
I use something like the following in rules to good effect: Country( this == Country.USA ) --- Steven Williams On Wed, Nov 13, 2013 at 12:20 AM, droolster quant.co...@gmail.com wrote: Thanks Steve for the advice and code! Awesome. -- View this message in context: http://drools.46999.n3.nabble.com/How-to-use-type-safe-enums-in-rule-condition-tp4026739p4026745.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Classloading error with AspectJ and Drools 5.2.0.Final
FYI - https://issues.jboss.org/browse/JBRULES-3122 was raised for this. cheers Steve 2011/8/31 Wolfgang Laun wolfgang.l...@gmail.com This should be fixed by now on the way to 5.3.0, returning an empty collection - I've seen a confirming email from Mark Proctor. -W On 30 August 2011 13:27, Sammi sammi_t...@yahoo.com.hk wrote: We got exactly the same issue, but I think it could just return empty enumeration rather than null? Cited from the javadoc *EnumberationURL getResources(String name)* /An enumeration of URL objects for the resource. If no resources could be found, the enumeration will be empty. Resources that the class loader doesn't have access to will not be in the enumeration./ stevearoonie wrote: Clarification to this - it does also happen when we run our server. So this is preventing us from upgrading to 5.2 My guess is that getResources should return getParent().getResources() rather than null. regards Steve -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Classloading-error-with-AspectJ-and-Drools-5-2-0-Final-tp3143394p3295236.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Classloading error with AspectJ and Drools 5.2.0.Final
Hi, I have just upgraded to Drools 5.2.0.Final and am getting a weird error when running unit tests. java.lang.NullPointerException at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.parseDefinitions( ClassLoaderWeavingAdaptor.java:251) at org.aspectj.weaver.loadtime.DefaultWeavingContext.getDefinitions( DefaultWeavingContext.java:130) at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.initialize( ClassLoaderWeavingAdaptor.java:161) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.initialize( Aj.java:271) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.getWeavingAdaptor( Aj.java:276) at org.aspectj.weaver.loadtime.Aj$WeaverContainer.getWeaver(Aj.java:254) at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:90) at org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform( ClassPreProcessorAgentAdapter.java:54) at sun.instrument.TransformerManager.transform(TransformerManager.java:169) at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:365 ) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass( JavaDialectRuntimeData.java:570) at org.drools.util.CompositeClassLoader$CachingLoader.load( CompositeClassLoader.java:258) at org.drools.util.CompositeClassLoader$CachingLoader.load( CompositeClassLoader.java:241) at org.drools.util.CompositeClassLoader.loadClass( CompositeClassLoader.java:88) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at org.drools.rule.JavaDialectRuntimeData.wire( JavaDialectRuntimeData.java:405) at org.drools.rule.JavaDialectRuntimeData.wire( JavaDialectRuntimeData.java:396) at org.drools.rule.JavaDialectRuntimeData.onBeforeExecute( JavaDialectRuntimeData.java:237) at org.drools.rule.DialectRuntimeRegistry.onBeforeExecute( DialectRuntimeRegistry.java:132) at org.drools.compiler.PackageBuilder.reloadAll(PackageBuilder.java:796) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:751) at org.drools.compiler.PackageBuilder.addPackageFromDrl( PackageBuilder.java:360) at org.drools.compiler.PackageBuilder.addKnowledgeResource( PackageBuilder.java:538) at org.drools.builder.impl.KnowledgeBuilderImpl.add( KnowledgeBuilderImpl.java:28) at au.com.promedicus.rules.KnowledgeBaseBuilder.addPackagesFromList( KnowledgeBaseBuilder.java:108) at au.com.promedicus.rules.KnowledgeBaseBuilder.build( KnowledgeBaseBuilder.java:69) at au.com.promedicus.rules.KnowledgeBaseBuilder.build( KnowledgeBaseBuilder.java:54) I have traced the problem to org.drools.rule. JavaDialectRuntimeData$PackageClassLoader.getResources. This returns null whereas AspectJ expects it to at least return an empty enumeration - hence the NPE. Interestingly the problem does not occur when running our server, however we can't upgrade unless our unit tests pass and we can't easily turn off aspectj for these. regards Steve ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Classloading error with AspectJ and Drools 5.2.0.Final
Clarification to this - it does also happen when we run our server. So this is preventing us from upgrading to 5.2 My guess is that getResources should return getParent().getResources() rather than null. regards Steve On Wed, Jul 6, 2011 at 1:42 PM, Steven Williams stevearoo...@gmail.comwrote: Hi, I have just upgraded to Drools 5.2.0.Final and am getting a weird error when running unit tests. java.lang.NullPointerException at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.parseDefinitions( ClassLoaderWeavingAdaptor.java:251) at org.aspectj.weaver.loadtime.DefaultWeavingContext.getDefinitions( DefaultWeavingContext.java:130) at org.aspectj.weaver.loadtime.ClassLoaderWeavingAdaptor.initialize( ClassLoaderWeavingAdaptor.java:161) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.initialize( Aj.java:271) at org.aspectj.weaver.loadtime.Aj$ExplicitlyInitializedClassLoaderWeavingAdaptor.getWeavingAdaptor( Aj.java:276) at org.aspectj.weaver.loadtime.Aj$WeaverContainer.getWeaver(Aj.java:254) at org.aspectj.weaver.loadtime.Aj.preProcess(Aj.java:90) at org.aspectj.weaver.loadtime.ClassPreProcessorAgentAdapter.transform( ClassPreProcessorAgentAdapter.java:54) at sun.instrument.TransformerManager.transform(TransformerManager.java:169 ) at sun.instrument.InstrumentationImpl.transform( InstrumentationImpl.java:365) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632) at java.lang.ClassLoader.defineClass(ClassLoader.java:616) at org.drools.rule.JavaDialectRuntimeData$PackageClassLoader.fastFindClass( JavaDialectRuntimeData.java:570) at org.drools.util.CompositeClassLoader$CachingLoader.load( CompositeClassLoader.java:258) at org.drools.util.CompositeClassLoader$CachingLoader.load( CompositeClassLoader.java:241) at org.drools.util.CompositeClassLoader.loadClass( CompositeClassLoader.java:88) at java.lang.ClassLoader.loadClass(ClassLoader.java:248) at org.drools.rule.JavaDialectRuntimeData.wire( JavaDialectRuntimeData.java:405) at org.drools.rule.JavaDialectRuntimeData.wire( JavaDialectRuntimeData.java:396) at org.drools.rule.JavaDialectRuntimeData.onBeforeExecute( JavaDialectRuntimeData.java:237) at org.drools.rule.DialectRuntimeRegistry.onBeforeExecute( DialectRuntimeRegistry.java:132) at org.drools.compiler.PackageBuilder.reloadAll(PackageBuilder.java:796) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:751) at org.drools.compiler.PackageBuilder.addPackageFromDrl( PackageBuilder.java:360) at org.drools.compiler.PackageBuilder.addKnowledgeResource( PackageBuilder.java:538) at org.drools.builder.impl.KnowledgeBuilderImpl.add( KnowledgeBuilderImpl.java:28) at au.com.promedicus.rules.KnowledgeBaseBuilder.addPackagesFromList( KnowledgeBaseBuilder.java:108) at au.com.promedicus.rules.KnowledgeBaseBuilder.build( KnowledgeBaseBuilder.java:69) at au.com.promedicus.rules.KnowledgeBaseBuilder.build( KnowledgeBaseBuilder.java:54) I have traced the problem to org.drools.rule. JavaDialectRuntimeData$PackageClassLoader.getResources. This returns null whereas AspectJ expects it to at least return an empty enumeration - hence the NPE. Interestingly the problem does not occur when running our server, however we can't upgrade unless our unit tests pass and we can't easily turn off aspectj for these. regards Steve ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Error opening dslr in Eclipse on Mac
Java 1.6, Drools 5.1.1 On Fri, Apr 29, 2011 at 7:46 PM, Benson Fung benson.red...@gmail.comwrote: What version of jdk and Drools plugin are you using? 2011/4/29 Steven Williams stevearoo...@gmail.com: Hi, I am running Eclipse Helios on Mac OS X 10.6.7 with the Drools 5.1.1 plugin and cannot open DSLR files with the error below. This error also occurs if I create a new Drools project, create a new rule resource and select the Use a DSL checkbox. DRL files open fine. Could not open the editor: 1 java.lang.ArrayIndexOutOfBoundsException: 1 at org.eclipse.swt.custom.StyledTextRenderer.calculateClientArea(StyledTextRenderer.java:230) at org.eclipse.swt.custom.StyledText.handleResize(StyledText.java:6169) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5662) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3783) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1398) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1379) at org.eclipse.swt.widgets.Control.resized(Control.java:2944) at org.eclipse.swt.widgets.Composite.resized(Composite.java:929) at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3428) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4975) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSView.setFrameSize(NSView.java:259) at org.eclipse.swt.widgets.Control.setBounds(Control.java:3171) at org.eclipse.swt.widgets.Control.setSize(Control.java:3668) at org.eclipse.jface.text.source.SourceViewer$RulerLayout.getVerticalScrollArrowHeights(SourceViewer.java:200) at org.eclipse.jface.text.source.SourceViewer$RulerLayout.layout(SourceViewer.java:157) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1183) at org.eclipse.swt.widgets.Composite.layout(Composite.java:703) at org.eclipse.swt.widgets.Composite.layout(Composite.java:661) at org.eclipse.jface.text.source.CompositeRuler.layoutTextViewer(CompositeRuler.java:611) at org.eclipse.jface.text.source.CompositeRuler.addDecorator(CompositeRuler.java:565) at org.eclipse.jface.text.source.projection.ProjectionViewer.addVerticalRulerColumn(ProjectionViewer.java:1289) at org.eclipse.jface.text.source.projection.ProjectionSupport.doEnableProjection(ProjectionSupport.java:310) at org.eclipse.jface.text.source.projection.ProjectionSupport$ProjectionListener.projectionEnabled(ProjectionSupport.java:143) at org.eclipse.jface.text.source.projection.ProjectionViewer.fireProjectionEnabled(ProjectionViewer.java:489) at org.eclipse.jface.text.source.projection.ProjectionViewer.enableProjection(ProjectionViewer.java:537) at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1441) at org.drools.eclipse.editors.AbstractRuleEditor.createPartControl(Unknown Source) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:241) at org.eclipse.ui.forms.editor.FormEditor.addPage(FormEditor.java:325) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:211) at org.eclipse.ui.forms.editor.FormEditor.addPage(FormEditor.java:308) at org.drools.eclipse.dsl.editor.DSLRuleEditor2.addPages(Unknown Source) at org.eclipse.ui.forms.editor.FormEditor.createPages(FormEditor.java:138) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:348) at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670) at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768) at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760) at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610) at org.drools.eclipse.wizard.rule.NewRulePackagePage.finish(Unknown Source) at org.drools.eclipse.wizard.rule.NewRulePackageWizard.performFinish(Unknown Source) at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:811
[rules-users] Error opening dslr in Eclipse on Mac
Hi, I am running Eclipse Helios on Mac OS X 10.6.7 with the Drools 5.1.1 plugin and cannot open DSLR files with the error below. This error also occurs if I create a new Drools project, create a new rule resource and select the Use a DSL checkbox. DRL files open fine. Could not open the editor: 1 java.lang.ArrayIndexOutOfBoundsException: 1 at org.eclipse.swt.custom.StyledTextRenderer.calculateClientArea(StyledTextRenderer.java:230) at org.eclipse.swt.custom.StyledText.handleResize(StyledText.java:6169) at org.eclipse.swt.custom.StyledText$7.handleEvent(StyledText.java:5662) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3783) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1398) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1379) at org.eclipse.swt.widgets.Control.resized(Control.java:2944) at org.eclipse.swt.widgets.Composite.resized(Composite.java:929) at org.eclipse.swt.widgets.Control.setFrameSize(Control.java:3428) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4975) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSView.setFrameSize(NSView.java:259) at org.eclipse.swt.widgets.Control.setBounds(Control.java:3171) at org.eclipse.swt.widgets.Control.setSize(Control.java:3668) at org.eclipse.jface.text.source.SourceViewer$RulerLayout.getVerticalScrollArrowHeights(SourceViewer.java:200) at org.eclipse.jface.text.source.SourceViewer$RulerLayout.layout(SourceViewer.java:157) at org.eclipse.swt.widgets.Composite.updateLayout(Composite.java:1183) at org.eclipse.swt.widgets.Composite.layout(Composite.java:703) at org.eclipse.swt.widgets.Composite.layout(Composite.java:661) at org.eclipse.jface.text.source.CompositeRuler.layoutTextViewer(CompositeRuler.java:611) at org.eclipse.jface.text.source.CompositeRuler.addDecorator(CompositeRuler.java:565) at org.eclipse.jface.text.source.projection.ProjectionViewer.addVerticalRulerColumn(ProjectionViewer.java:1289) at org.eclipse.jface.text.source.projection.ProjectionSupport.doEnableProjection(ProjectionSupport.java:310) at org.eclipse.jface.text.source.projection.ProjectionSupport$ProjectionListener.projectionEnabled(ProjectionSupport.java:143) at org.eclipse.jface.text.source.projection.ProjectionViewer.fireProjectionEnabled(ProjectionViewer.java:489) at org.eclipse.jface.text.source.projection.ProjectionViewer.enableProjection(ProjectionViewer.java:537) at org.eclipse.jface.text.source.projection.ProjectionViewer.doOperation(ProjectionViewer.java:1441) at org.drools.eclipse.editors.AbstractRuleEditor.createPartControl(Unknown Source) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:241) at org.eclipse.ui.forms.editor.FormEditor.addPage(FormEditor.java:325) at org.eclipse.ui.part.MultiPageEditorPart.addPage(MultiPageEditorPart.java:211) at org.eclipse.ui.forms.editor.FormEditor.addPage(FormEditor.java:308) at org.drools.eclipse.dsl.editor.DSLRuleEditor2.addPages(Unknown Source) at org.eclipse.ui.forms.editor.FormEditor.createPages(FormEditor.java:138) at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:348) at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670) at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465) at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768) at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760) at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610) at org.drools.eclipse.wizard.rule.NewRulePackagePage.finish(Unknown Source) at org.drools.eclipse.wizard.rule.NewRulePackageWizard.performFinish(Unknown Source) at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:811) at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:430) at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3783) at
Re: [rules-users] execute particular rules programmatically and dynamically
I have actually used this method for the one valid case I have thought of - unit testing rules. Steve 2011/4/1 Swindells, Thomas tswinde...@nds.com Agreed, But if you really do want to you can setup an agenda filter so that only the activation for the rule you care about is fired – but I don’t think there are many valid cases where this is needed/desirable/appropriate. Thomas *From:* rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] *On Behalf Of *Michael Anstis *Sent:* 31 March 2011 10:08 *To:* Rules Users List *Subject:* Re: [rules-users] execute particular rules programmatically and dynamically Why would you want to execute a single rule? The logic you'd write to determine which rule to fire should itself be part of the rules: So, for example, if you want to validate facts of type Smurf then write a rule that matches on Smurf. When you insert a Smurf only the rules that match on this will become candidates for execution when you call fireAllRules. Perhaps use of a stateless session would simplify things so you need not worry about other facts in WM polluting the results you expect to see? More and more questions are posted here asking how to make individual rules execute; IMO the solution is to change your thinking about how Rules Engines work. If you give your use-case we might be able to advise a better approach. With kind regards, Mike 2011/3/31 Wolfgang Laun wolfgang.l...@gmail.com On 31 March 2011 07:58, Benson Fung benson.red...@gmail.com wrote: Hi, If there are 10 rules in the drools rulebase, and right now I would like to execute one of the particular rule. Is there any approach/way to execute particular rule programmatically? No. The right hand side of a rule (code between then and end) is executed whenever there is a set of fact objects in Working Memory satisfying the condition. If you insert such a set of facts and call fireAllRules(), then it will happen. I don't think agenda-group or activation-group can do that, right? Or is it possible to create an agenda programmatically ? No to both. -W Thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- ** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmas...@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ** ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Configure custom SystemEventListener via Drools Spring
Hi, I have just started using the drools-spring integration (5.1.1) and I would to use my own SystemEventListener instead of the default PrintStreamSystemEventListener however I am not sure if it is possible or how to configure it. thanks Steve ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] KnowledgeAgent Issue
Hi all,
I am trying to use a Knowledge Agent in 5.1.1 with a change set with a few
different packages and resource types in it, and I am running into a problem
where it is not adding all the packages. Looking at the code I can see that
KnowledegeAgentImpl.createPackageFromResource has the following code when it
loads a resource:
if (kbuilder.getKnowledgePackages().iterator().hasNext()) {
return (KnowledgePackageImp)
kbuilder.getKnowledgePackages().iterator().next();
}
and KnowledgeBuilderImpl.getKnowledgePackages does the following:
Package[] pkgs = pkgBuilder.getPackages();
ListKnowledgePackage list = new ArrayListKnowledgePackage( pkgs.length
);
and PackageBuilder.getPackages does the following:
for ( PackageRegistry pkgRegistry : this.pkgRegistryMap.values() ) {
Package pkg = pkgRegistry.getPackage();
// add package to array
}
pkgRegistryMap is implemented as a HashMap however so the order the packages
are returned in is not guaranteed. I seem to be hitting this problem.
This is a hard one to create a unit test for so I wanted to check that my
analysis is correct before raising a bug. Perhaps using a LinkedHashMap or
similar would fix it?
thanks
Steve
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Re: [rules-users] KnowledgeAgent Issue
I'm not sure whether they were added or not. I noticed the rules weren't
running when I expected them to though, so perhaps not. I have worked around
it by putting all my rules in the same package - luckily I only had about 30
different rule files, but it is a less than ideal solution.
Once I have everything working and checked in on my project I'll test
further to see what is going on.
Steve
On Tue, Mar 22, 2011 at 2:43 PM, Esteban Aliverti
esteban.alive...@gmail.com wrote:
Someone mentioned me the problem some time ago. I have a fix for it in my
local repo, butI was waiting for the trunk to be stable to test it.
The problem is that under certain circumstances, the kagent is reusing the
same kbuilder to compile all the resources present in a change-set (the
modifications I have force the agent to use a new kbuilder for each
resource).
The only difference between what you are reporting and the problem I'm
talking about is that in my case all the rules, functions, etc were added to
the kbase, but all within the same package. No matter the real package
definition. Is this your case also?
Please file a bug report and let me know.
Best Regards,
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2011/3/21 Steven Williams stevearoo...@gmail.com
Hi all,
I am trying to use a Knowledge Agent in 5.1.1 with a change set with a few
different packages and resource types in it, and I am running into a problem
where it is not adding all the packages. Looking at the code I can see that
KnowledegeAgentImpl.createPackageFromResource has the following code when it
loads a resource:
if (kbuilder.getKnowledgePackages().iterator().hasNext()) {
return (KnowledgePackageImp)
kbuilder.getKnowledgePackages().iterator().next();
}
and KnowledgeBuilderImpl.getKnowledgePackages does the following:
Package[] pkgs = pkgBuilder.getPackages();
ListKnowledgePackage list = new ArrayListKnowledgePackage(
pkgs.length );
and PackageBuilder.getPackages does the following:
for ( PackageRegistry pkgRegistry : this.pkgRegistryMap.values()
) {
Package pkg = pkgRegistry.getPackage();
// add package to array
}
pkgRegistryMap is implemented as a HashMap however so the order the
packages are returned in is not guaranteed. I seem to be hitting this
problem.
This is a hard one to create a unit test for so I wanted to check that my
analysis is correct before raising a bug. Perhaps using a LinkedHashMap or
similar would fix it?
thanks
Steve
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Re: [rules-users] Inserting collection of facts in rule Consequence
I normally do something like
when
$creditContract : CreditContract()
$o : Applicant() from $creditContract.coApplicantArray
then
insert($o);
end
retract would be something like
when
$o : Applicant( )
CreditContract( coApplicantArray contains $o )
then
retract($o);
end
cheers
Steve
On Tue, Feb 10, 2009 at 6:36 AM, k...@chryslerfinancial.com wrote:
There may be a better way but I did it using a function as below:
*function* *void* insertArray(WorkingMemory workingMemory, Object[] array)
{
*for* (*int* i=0;iarray.length;i++)
{
workingMemory.*insert*(array[i]);
}
*return*;
}
...
*rule* StarCoApplicants *ruleflow-group* STAR
*dialect* mvel
*when*
$creditContract : CreditContract ()
*then*
insertArray(drools.workingMemory,$creditContract.coApplicantArray);
*end*
Kent Symanzik
*techy techluver...@gmail.com*
Sent by: rules-users-boun...@lists.jboss.org
02/09/2009 10:15 AM
Please respond to
Rules Users List rules-users@lists.jboss.org
To
rules-users@lists.jboss.org
cc
Subject
Re: [rules-users] Inserting collection of facts in rule Consequence
I would appreciate If someone can clarify this.
Thanks in advance
techy wrote:
Hello,
Is there way to insert all facts from collection (similar to
session.execute(collection)) in the rule consequence ?
Thanks!
--
View this message in context:
http://www.nabble.com/Inserting-collection-of-facts-in-rule-Consequence-tp21814308p21914860.html
Sent from the drools - user mailing list archive at Nabble.com.
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[rules-users] Eclipse guvnor plugin issue
Hi all, I am using the snapshot version of the eclipse plugin from Feb 5. When I attempt to drag a file from the repository explorer into the Navigator view I get the following exception: java.lang.Exception: Could not create directory C:\Documents and Settings\Administrator\workspace\.metadata\.plugins\org.guvnor.tools\623d8213:11f48a3ddff:-7fff at org.guvnor.tools.views.RepositoryView.prepareFileTransfer(Unknown Source) at org.guvnor.tools.views.RepositoryView.access$1(Unknown Source) at org.guvnor.tools.views.RepositoryView$2.dragSetData(Unknown Source) at org.eclipse.swt.dnd.DNDListener.handleEvent(DNDListener.java:54) ... I am using Windows and can drag the file from a mapped webdav directory on my computer. I think the problem is that the filename contains the invalid character : Should I raise a bug? thanks Steve ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] RuleFlow question
Hi guys, I am playing with the OrderExample in drools-examples and was wondering how I get access in my rules to the parameters that are sent to startProcess? e.g. MapString, Object parameters = new HashMapString, Object(); parameters.put(order, order); parameters.put(orderId, order.getOrderId()); parameters.put(email, emailTextField.getText()); ProcessInstance processInstance = ksession.startProcess(org.drools.examples.process.ruleset.RuleSetExample, parameters); I have access to the ProcessInstance but there doesn't seem to be any clear path to the parameters. thanks Steve ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] guvnor - cannot delete business rule assets
Hi Kent, I think if you archive your rule (with the archive button) you can then go into the archive area of Administration and delete them. cheers Steve On Wed, Jan 21, 2009 at 7:09 AM, k...@chryslerfinancial.com wrote: *Drools 5.0.0.M4 Guvnor Standalone* There does not appear to be an option for deleting business rule assets. The delete button does show up for technical assets. Is it based on some context that I am not aware of? Thanks Kent ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] KnowledgeBuilderConfiguration
Hi guys, It's no biggy but I was wondering whether KnowledgeBuilderConfiguration will get an addAccumulateFunction method, similar to PackageBuilderConfiguration? In our project we use Spring to configure Drools, which means we have a MapString, Class available for accumulate functions, so we could previously do: config.addAccumulateFunction(entry.getKey(), entry.getValue()); Now with KnowledgeBuilderConfiguration we had to change the Map to MapString, String and do the following: config.setProperty(drools.accumulate.function. + entry.getKey(), entry.getValue()); which seems like a retrograde step. -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools 5 Accumulate Function
Hi all, I am converting over to Drools 5 and have run into a problem with AccumulateFunction. I changed my classes to implement org.drools.runtime.rule.AccumulateFunction however this causes the ClassCastException below: Caused by: java.lang.ClassCastException: au.com.promedicus.rules.MaxPriceAccumulateFunction cannot be cast to org.drools.base.accumulators.AccumulateFunction at org.drools.compiler.PackageBuilderConfiguration.getAccumulateFunction(PackageBuilderConfiguration.java:489) at org.drools.rule.builder.dialect.java.JavaAccumulateBuilder.build(JavaAccumulateBuilder.java:108) ... My guess is this is a bug. For now I will just go back to implementing org.drools.base.accumulators.AccumulateFunction. cheers Steve -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] How to access data after rule fires
If you put an X or something in the cell (i.e. just don't leave it empty) it should also work. On Tue, Jan 13, 2009 at 10:57 AM, Edson Tirelli tire...@post.com wrote: The action is not being executed. I don't use decision tables frequently, but I think that it ignores empty cells and is generating an empty consequence for your rule. Usually, you would place the method call on the header prototype and the parameter in the cell. So your cell would be: | hoover | true | | xyz | false | The method prototype would be something like (please check the correct syntax in the manual): brand.setGoodBrand( $param ); Where the engine would replace $param by the value you write in the cell. []s Edson 2009/1/12 Costello, Robert rcos...@searshc.com I tried that and it returned false, which doesn't make sense to me since the rule firing is to set the value to true, and in the execution the rule does fire. StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession(); Product p = *new* Product(); p.setBrand(hoover); session.insert( p ); *int* u = session.fireAllRules(); System.*out*.println(u + many rules fired); System.*out*.println(is brand good? + p.isGoodBrand()); Here's a snippet of the rule (decision table) * * CONDITION ACTION * * Product * * brand setGoodBrand(true); *Cases* hoover match case *Brand Check* hoover * * And the console returns: 1 many rules fired is brand good? false Robert Costello Lead Systems Engineer IMA Performance E3- 279A 847.286.0910 -Original Message- *From:* rules-users-boun...@lists.jboss.org [mailto: rules-users-boun...@lists.jboss.org] *On Behalf Of *Edson Tirelli *Sent:* Monday, January 12, 2009 4:16 PM *To:* Rules Users List *Subject:* Re: [rules-users] How to access data after rule fires Can't you keep the reference to your object while firing the rules? MyObject x = ... ksession.insert( x ); ksession.fireAllRules(); boolean result = x.getBooleanAttribute(); []s Edson 2009/1/12 Costello, Robert rcos...@searshc.com So, how do I access data after the rules fire? If one has a rule which modifies a field on an object (a boolean, for example), and you want to return the object after the rules are complete, how do you do it? I tried this using a StatefulKnowledgeSession, getting an object collection after the rules fire, but I don't see that this works. Also googled the heck out of this and looked in all the documentation. I must be missing something, because the docs generally are pretty good. Any hints? Thanks in advance, Robert Costello ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Re: Drools nightly snapshot
Never mind. (I hate it when you post a question and then immediately find the answer!) For anybody else the correct dependency format is: dependency groupIdorg.drools/groupId artifactIddrools-core/artifactId version5.0.0.SNAPSHOT/version /dependency NOT dependency groupIdorg.drools/groupId artifactIddrools-core/artifactId version5.0.0-SNAPSHOT/version /dependency On Fri, Jan 9, 2009 at 2:01 PM, Steven Williams stevearoo...@gmail.comwrote: Hi all, I was wondering if anyone knows how to get the nightly snapshot for Drools 5 via maven? I am using the http://snapshots.jboss.org/maven2 repository but the snapshot jars have different names to what I was expecting (e.g. drools-core-5.0.0.20081110.114826-277.jar as opposed to drools-core-5.0.0-SNAPSHOT.jar). Can anyone tell me what settings I should use in my pom to get the latest version? thanks Steve -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools 5 migration
Hi guys, I have migrated my code over to Drools 5 and now regular expressions have to be escaped. e.g. where previously I had name matches ^\s*$ instead I have to put name matches ^\\s*$ Is this a bug or am I missing a setting or something? I am running against the 5 snapshot. thanks Steve -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 steven.willi...@objectconsulting.com.au www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] drools query
Have a look here http://www.jboss.org/community/docs/DOC-11909 (this is to find the max so just reverse it) cheers Steve On Thu, Dec 11, 2008 at 9:48 AM, tati-2 [EMAIL PROTECTED] wrote: How to extract min age of many objects of the same type People , which we inserted in the workspace ? Thank you very much in advance for help. -- View this message in context: http://www.nabble.com/drools-query-tp20945811p20945811.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] drools query
Yeah - that discussion was before drools had the accumulate function. On Thu, Dec 11, 2008 at 10:16 AM, Greg Barton [EMAIL PROTECTED] wrote: That approach looks a bit cartesian joiny. I'd be interested in seeing how it compares to using accumulate. --- On Wed, 12/10/08, Steven Williams [EMAIL PROTECTED] wrote: From: Steven Williams [EMAIL PROTECTED] Subject: Re: [rules-users] drools query To: Rules Users List rules-users@lists.jboss.org Date: Wednesday, December 10, 2008, 4:59 PM Have a look here http://www.jboss.org/community/docs/DOC-11909 (this is to find the max so just reverse it) cheers Steve On Thu, Dec 11, 2008 at 9:48 AM, tati-2 [EMAIL PROTECTED] wrote: How to extract min age of many objects of the same type People , which we inserted in the workspace ? Thank you very much in advance for help. -- View this message in context: http://www.nabble.com/drools-query-tp20945811p20945811.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] having counter in drl
Globals should only be used for data that is constant over the life of the working memory, which is not so in your case. Maybe you should just use a fact counter. If you don't want to affect your code you could insert it in a separate rule. when then On Tue, Dec 9, 2008 at 9:05 AM, techy [EMAIL PROTECTED] wrote: Hello, I would like to take 100 sampling facts for rule and persist it in the db and ignore other data. How Can I maintain the counter? as global variable? Please clarify with sample code. I tried following way and but it does not work as expected. Ex: global Integer counter; rule get sampling data when fact : Foo(some condition) eval(counter = 100) then counter++ // do some condition end -- View this message in context: http://www.nabble.com/having-counter-in-drl-tp20904469p20904469.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] having counter in drl
Sorry - I accidentally hit send. Something like: when then insert(new Integer(0)); end when $i: Integer(value 100) Foo(some condition) then retract($i); insert(new Integer($i.intValue() + 1)); ... end On Tue, Dec 9, 2008 at 10:54 AM, Steven Williams [EMAIL PROTECTED]wrote: Globals should only be used for data that is constant over the life of the working memory, which is not so in your case. Maybe you should just use a fact counter. If you don't want to affect your code you could insert it in a separate rule. when then On Tue, Dec 9, 2008 at 9:05 AM, techy [EMAIL PROTECTED] wrote: Hello, I would like to take 100 sampling facts for rule and persist it in the db and ignore other data. How Can I maintain the counter? as global variable? Please clarify with sample code. I tried following way and but it does not work as expected. Ex: global Integer counter; rule get sampling data when fact : Foo(some condition) eval(counter = 100) then counter++ // do some condition end -- View this message in context: http://www.nabble.com/having-counter-in-drl-tp20904469p20904469.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] how to find the rule name
try String ruleName = ... On Thu, Jul 3, 2008 at 7:09 AM, Marina [EMAIL PROTECTED] wrote: Hello, I need to know the rule name of the rule that fired in the consequence part of the rule. I tried something like the following, just trying to see if I can get it this way: package mode.simple; import java.lang.String; import java.util.List; import com.emptoris.ecm.domain.ContractRulesData; global java.util.Set approverList; rule testOR_1 dialect java when $data : ContractRulesData (sum 500 || name matches .*important) then approverList.add(approver3, approver4, Level5); ruleName = drools.getRule().getName(); System.out.println(ruleName + is TRUE); end When I'm trying to compile the rule, I'm getting the following error: Builder errors: Rule Compilation error : [Rule name=testOR_1, agendaGroup=MAIN, salience=0, no-loop=false] mode/simple/Rule_testOR_1_0.java (8:391) : ruleName cannot be resolved mode/simple/Rule_testOR_1_0.java (9:452) : ruleName cannot be resolved java.lang.RuntimeException: Unable to compile rules file: testOR_1.drl I must be doing something wrong here... ? thanks! Marina ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] No accumulator function found for identifier
Hi Jarek, I have had a similar problem. For the moment I have put the drools.packagebuilder.conf file in my home directory (e.g. c:\documents and settings\username on windows). Whilst not ideal it works. cheers Steve On Tue, May 20, 2008 at 10:36 PM, Jaroslaw Kijanowski [EMAIL PROTECTED] wrote: Hi, when I create my own accumulate function, I add it to src/main/java/META-INF/drools.packagebuilder.conf and it works fine. However, eclipse is showing one error: No accumulator function found for identifier: ... I've found this http://lists.jboss.org/pipermail/rules-users/2007-December/004349.html and tried to move META-INF to the root dir, but then my app doesn't work (and eclipse shows the same error). Any thoughts? Thanks, Jarek ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] BRMS Security in Websphere 6.1
) at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(Applica tionMgrImpl.java:948) at com.ibm.ws.runtime.component.ApplicationMgrImpl$AppInitializer.run(Appli cationMgrImpl.java:2114) at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(W sComponentImpl.java:340) at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1510) Caused by: java.security.AccessControlException: Access denied (java.lang.reflect.ReflectPermission suppressAccessChecks) at java.security.AccessController.checkPermission(AccessController.java:104 ) at java.lang.SecurityManager.checkPermission(SecurityManager.java:547) at com.ibm.ws.security.core.SecurityManager.checkPermission(SecurityManager .java:189) at java.lang.reflect.AccessibleObject.setAccessible(AccessibleObject.java:1 19) at org.jboss.seam.Component.scanMethod(Component.java:797) at org.jboss.seam.Component.initMembers(Component.java:548) at org.jboss.seam.Component.init(Component.java:254) at org.jboss.seam.Component.init(Component.java:217) at org.jboss.seam.init.Initialization.addComponent(Initialization.java:949) ... 19 more This email and/or any files or attachments transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the intended recipient, or the employee or agent responsible for delivering the message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this e-mail and/or any files or attachments transmitted with it is strictly forbidden. If you have received this email in error, please delete the e-mail and/or any files or attachments, and also notify the system manager ( [EMAIL PROTECTED]) of the error. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Finally, the recipient should check this email and any attachments for the presence of ! viruses. The company accepts no liability for any damage caused by any virus transmitted by this email and/or any files or attachments transmitted with it. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Collection Emptyness
use sousVenues.empty == true On Wed, Apr 23, 2008 at 5:32 PM, vdelbart [EMAIL PROTECTED] wrote: Hi, I have an object 'VenueGlobal' with a property 'sousVenues' who is a List of SousVenue. I try to test the emptyness of this list in on sentence but i don't know why it doesn't work : I try this : VenueGlobal( sousVenues == null || sousVenues.empty ) but I have this error : org.drools.rule.InvalidRulePackage: [11,53]: unknown:11:53 Unexpected token ')' at org.drools.rule.Package.checkValidity(Package.java:424) I try this : VenueGlobal( sousVenues == null || sousVenues.size == 0 ) but I have this error : Caused by: org.mvel.PropertyAccessException: unable to resolve property: size at org.mvel.optimizers.impl.refl.ReflectiveAccessorOptimizer.getBeanProperty(ReflectiveAccessorOptimizer.java:382) I don't know what the solution ? regards, V. -- View this message in context: http://www.nabble.com/Collection---Emptyness-tp16833060p16833060.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Re: Is this scenario suitable for using Drools?
change DBUtils to return a Collection and it should work I think.
On Wed, Apr 23, 2008 at 5:50 PM, Anstis, Michael (M.) [EMAIL PROTECTED]
wrote:
So, in my usual helpful manner I thought Drools would be a perfect match
and put together what I thought would be a simple example:-
package com.sample
global com.sample.DBUtils dbutils;
rule a1
when
$max : Integer() from accumulate( Integer( $v : intValue ) from
dbutils.getNumbers(), max($v) )
then
System.out.println($max);
end
public class DBUtils {
public Integer[] getNumbers() {
Integer[] numbers = new Integer[10];
for (int i = 0; i numbers.length; i++) {
numbers[i] = (int) (Math.random() * 100);
}
return numbers;
}
}
However this led to some errors:-
org.drools.RuntimeDroolsException: java.lang.ClassCastException:
[Ljava.lang.Integer; incompatible with java.lang.Integer
at org.drools.rule.Accumulate.accumulate(Accumulate.java:131)
at org.drools.reteoo.AccumulateNode.assertTuple(AccumulateNode.java:127)
at
org.drools.reteoo.CompositeTupleSinkAdapter.createAndPropagateAssertTuple(CompositeTupleSinkAdapter.java:73)
at
org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:116)
at
org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22)
at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:153)
at org.drools.reteoo.Rete.assertObject(Rete.java:177)
at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192)
at
org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:179)
at
org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1292)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:891)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:858)
at
org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:659)
at com.sample.DroolsTest.main(DroolsTest.java:36)
Caused by: java.lang.ClassCastException: [Ljava.lang.Integer; incompatible
with java.lang.Integer
at
org.drools.base.java.lang.Integer968047027$intValue.getIntValue(Unknown
Source)
at
org.drools.base.ClassFieldExtractor.getIntValue(ClassFieldExtractor.java:197)
at org.drools.rule.Declaration.getIntValue(Declaration.java:230)
at
com.sample.Rule_a1_0AccumulateExpression0Invoker.evaluate(Rule_a1_0AccumulateExpression0Invoker.java:16)
at
org.drools.base.accumulators.JavaAccumulatorFunctionExecutor.accumulate(JavaAccumulatorFunctionExecutor.java:74)
at org.drools.rule.Accumulate.accumulate(Accumulate.java:123)
... 13 more
Have I done something really stupid and is Drools a fit?
Cheers,
Mike
--
*From:* [EMAIL PROTECTED] [mailto:
[EMAIL PROTECTED] *On Behalf Of *Cheng Wei Lee
*Sent:* 22 April 2008 17:27
*To:* rules-users@lists.jboss.org
*Subject:* [rules-users] Re: Is this scenario suitable for using Drools?
I've 2 algorithms to calculate the cost of a product. At any one time,
there is only 1 algorithm in use. Initially algorithm 1 will be the default.
Subsequently, the decision to use which algorithm will depend on customers
feedback. The algorithms are:
Algorithm 1:
Cost = MAX(P1, T1, P2, T2, P3, T3, ...)
Algorithm 2:
Cost = MIN(P1, P2, P3, ...) + MIN(T1, T2, T3, ...)
The values of P1, P2, ... are stored within a database. The number of Ps
Ts are unknown but can be determined by querying the database, Would drools
be a good option to use to store the algorithms? If so, how could I be able
to retrieve the values of P1, P2, etc from the database from within drools?
Thanks!
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Steven Williams
Supervising Consultant
Object Consulting
Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
[EMAIL PROTECTED]
www.objectconsulting.com.au
consulting | development | training | support
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Re: [rules-users] Re: Is this scenario suitable for using Drools?
without knowing how you are accessing the database your two algorithms come down to something like: Alg. 1 max(select max(p) from y, select max(t) from z) Alg. 2 select min(p) from y + select min(t) from z which is basically the same as what Michael has proposed. Personally I think if you are already using Drools then this would fit, but it wouldn't seem like enough of a reason to introduce Drools on its own. cheers Steve On Wed, Apr 23, 2008 at 2:27 AM, Cheng Wei Lee [EMAIL PROTECTED] wrote: I've 2 algorithms to calculate the cost of a product. At any one time, there is only 1 algorithm in use. Initially algorithm 1 will be the default. Subsequently, the decision to use which algorithm will depend on customers feedback. The algorithms are: Algorithm 1: Cost = MAX(P1, T1, P2, T2, P3, T3, ...) Algorithm 2: Cost = MIN(P1, P2, P3, ...) + MIN(T1, T2, T3, ...) The values of P1, P2, ... are stored within a database. The number of Ps Ts are unknown but can be determined by querying the database, Would drools be a good option to use to store the algorithms? If so, how could I be able to retrieve the values of P1, P2, etc from the database from within drools? Thanks! ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Modifying fact object during rules execution
You could then have a rule that checks not (Currency type == USD) and a RHS with that inserts a new converted amount. If your conversion is rules-based then just have a rule per currency conversion. Your processing rules could then act on the converted amounts. On Mon, Apr 14, 2008 at 2:33 AM, vmuthupal [EMAIL PROTECTED] wrote: Hi, Currently we have a rule defined like this When Currency value = 300 Currency type = USD Condition 3 = something Condition 4 = something Then do this If the input values are not of the same currency then we need to do a currency conversion and then evaluate the above rule. For example if the input value says Currency value = 250 and currency type = Euro. then we need to convert the currency value from Euro to USD and then execute the rule. Is this possible by using functions on the LHS. If possible is there a better way to do this as we are currently looking at 10,000 rules to go through this routine. Thanks. -- View this message in context: http://www.nabble.com/Modifying-fact-object-during-rules-execution-tp16659936p16659936.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Error on access variable in workingmemorylogger
This may be http://jira.jboss.org/jira/browse/JBRULES-1415 cheers Steve On Wed, Apr 9, 2008 at 5:37 PM, vdelbart [EMAIL PROTECTED] wrote: Hello, I have an error on WorkingMemoryLogger with this rule : package example import mcmipih.rules.demo.model.*; global Param param; rule Your Third Rule dialect mvel when Param( iep : IEP ) from param then System.out.println(Iep de param + iep); end The error : java.lang.NullPointerException at org.drools.base.mcmipih.rules.demo.model.Param22676229$getIEP.getValue(Unknown Source) at org.drools.base.ClassFieldExtractor.getValue(ClassFieldExtractor.java:127) at org.drools.rule.Declaration.getValue(Declaration.java:198) at org.drools.audit.WorkingMemoryLogger.extractDeclarations(WorkingMemoryLogger.java:265) at org.drools.audit.WorkingMemoryLogger.activationCreated(WorkingMemoryLogger.java:199) at org.drools.event.AgendaEventSupport.fireActivationCreated(AgendaEventSupport.java:75) at org.drools.reteoo.RuleTerminalNode.assertTuple(RuleTerminalNode.java:331) at org.drools.reteoo.RuleTerminalNode.assertTuple(RuleTerminalNode.java:137) at org.drools.reteoo.SingleTupleSinkAdapter.propagateAssertTuple(SingleTupleSinkAdapter.java:20) at org.drools.reteoo.FromNode.assertTuple(FromNode.java:90) at org.drools.reteoo.SingleTupleSinkAdapter.createAndPropagateAssertTuple(SingleTupleSinkAdapter.java:55) at org.drools.reteoo.LeftInputAdapterNode.assertObject(LeftInputAdapterNode.java:116) at org.drools.reteoo.SingleObjectSinkAdapter.propagateAssertObject(SingleObjectSinkAdapter.java:22) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:153) at org.drools.reteoo.Rete.assertObject(Rete.java:175) at org.drools.reteoo.ReteooRuleBase.assertObject(ReteooRuleBase.java:192) at org.drools.reteoo.ReteooWorkingMemory$WorkingMemoryReteAssertAction.execute(ReteooWorkingMemory.java:179) at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1315) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:462) at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:433) at execute.ExecReglesWorkingMemory.testExecReglesWorkingMemory(ExecReglesWorkingMemory.java:107) 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:585) at junit.framework.TestCase.runTest(TestCase.java:154) at junit.framework.TestCase.runBare(TestCase.java:127) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196) The workingmemorylogger wants to show the value of the variable iep even if my 'param' is not present in the working memory ! Is it a bug ? thanks for your help, regards, V. -- View this message in context: http://www.nabble.com/Error-on-access-variable-in-workingmemorylogger-tp16581343p16581343.html Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Feature request
I also have this requirement. I spoke to Michael Neale about it and he thought that it shouldn't be too difficult. Michael, I wasn't sure if you were going to add the feature request or if you want me to do it? cheers Steve On Thu, Apr 10, 2008 at 9:30 AM, Brian Trezise [EMAIL PROTECTED] wrote: This is a feature request, or if the feature already exists, a request that somebody let me know :) I have a set of rules that heavily depend on regular expressions to operate. The regular expression is matched on the LHS of the rule, and then passed to another object for additional processing in the RHS of the rule. We're looking at a few hundred rules here. Here's the problem – because of needing to use the regexes twice, I have stored them in a separate container class as public static final String variables; however what we really want to do is to be able to make a modification to either the regex or the rules themselves, hot deploy the changes to the rule, and have everything work. We specifically do not want to have to try hot-deploying or re-compiling classes due to the potential issues that can arise. As it stands now it's looking like we are going to have to endure a pretty heavy maintenance burden by changing the rule, hot deploying, then later in the evening redeploying the java code and rebooting the server whenever we make a change. The ideal solution for this problem would be if we could set package-scoped variables in the .drl file, outside of the rules. For example, at the top of the drl file, below the import statements, if we could write something like the following: let String THIS_STRING = this regular expression; and then in the background when the rule classes are generated, have them be declared as static final/constant variables. This way they could be used on either side of the rule, but if a change is made the RuleAgent will see that and overwrite the old version of the rule package and fact processing would be able to continue uninterrupted. If anybody has any suggestions on a work around, I would be appreciative. Oh, and thanks to everybody for helping me get the RuleAgent to work :) *___ Brian Trezise Staff Software Engineer IntelliData, Inc *3173 s. uravan way aurora, colorado 80013 T: 720.524.4864 [EMAIL PROTECTED] ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Missing mvel class after upgrade 4.0.4 = 4.0.5
Hi Christian, I also ran into this problem. The mvel library on repo1.maven.org is wrong. Try using the jboss or codehaus repos. cheers Steve On Wed, Mar 26, 2008 at 10:28 PM, Christian Gorbach [EMAIL PROTECTED] wrote: hi , I am using maven, I tried to upgrade to the latest release be just changing the dools pom version number to 4.0.5 After the upgrade execution fails with the following stack trace: ... java.lang.NoClassDefFoundError: org/mvel/AbstractParser at org.drools.rule.builder.dialect.mvel.MVELDialect.setLanguageLevel( MVELDialect.java:128) at org.drools.rule.builder.dialect.java.AbstractJavaBuilder.clinit( AbstractJavaBuilder.java:26) at org.drools.rule.builder.dialect.java.JavaDialect.init(JavaDialect.java :78) at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.getDialect( JavaDialectConfiguration.java:62) at org.drools.compiler.PackageBuilderConfiguration.buildDialectRegistry( PackageBuilderConfiguration.java:175) at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:142) at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:86) .. has anyone successfully switched to the latest version using the maven2 poms? thanks in advance, c)hristian ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Can we do this with drools ?
There are some undocumented classes in drools-decisiontables that should let
you do this. Have a look at DataProviderCompilerIntegrationTest.java
cheers
Steve*
*
On Tue, Mar 25, 2008 at 12:03 PM, ferry97 [EMAIL PROTECTED] wrote:
Thanks Mark for the info.
Could you show me how to do it using mvel ? or refer me a link that
explaining all this ?
Mark Proctor wrote:
ferry97 wrote:
Hi,
I don't know how to ask this in words.
But can we do something like :
rule define trx type
when
Transaction(code == ${type1.code)
sorry no. But it's a nice idea, maybe submit a patch? You could probably
do this yourself already if you use MVEL templating as a pre-parser.
then
doSomething
So, we define the type.code in a properties file.
Thanks
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Re: [rules-users] Re: Fire Rules in DT based on a rule in DT
I'm not sure if it made its way into the doco. I don't have the code with me but will check for you what the value is. cheers Steve On Nov 16, 2007 1:21 PM, Arjun Dhar [EMAIL PROTECTED] wrote: Steven Williams stevearoonie at gmail.com writes: I added agenda-group to decision tables in September 2006.cheersSteve 2006, or 2007? Because it was not there in JBoss Rules 4.0.0 (at least not documented). Either way, it means it exists now. So will look at the latest release documentation. Thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Fire Rules in DT based on a rule in DT
I added agenda-group to decision tables in September 2006. cheers Steve On Nov 14, 2007 6:50 PM, Arjun Dhar [EMAIL PROTECTED] wrote: Hi, I have the following scenario. SCENARIO (simplified for discussion from actual blown up scenario) - 1. A decision table (DT) with rules for all types of employees - Call it Common DT 2. The DT mentioned in Point 1 has a condition that fetched data depending on Type Of Employee 3. There are other decision tables that would like to use the the rules from Common DT, but here are the challenges: Challenges -- 1. Decision does not support Agenda Groups 2. Using a fact; to hold the evaluated result from a DT can pass it from a child to a parent; but it requires an update(); which can cause infinite recursion if i dont have a Execute ONE Rule Only from Table decision variable. (Parent) DT - Condition 1, condition 2, Condition 3 (Actually result of Child DT) (Child DT) ... The relation is maintained using decision variables. This relation works perfenctly good (been working for 3 months now), but issue is it creates a Sort of a Tree (with each node a DT); in shich I cannot fire a common set of rules from Any Node. As an alternative; I'm suggesting to the client to write replicated DT's for each type of employee instead of 1 generic DT. Can anyone help? I've been begging for agenda Groups in decision tables but I guess you guys are tied up. So at a design level can you suggest a work around? Thanks, Arjun ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] custom defined types in setter and getters
No - you can use any java object as a fact, so both of your classes are
fine. For instance you could do:
when
Car($p: paint)
then
System.out.println($p.getName());
end
and using MVEL you could do:
when
Car(paint.name == red)
then
...
On 10/4/07, jack wu [EMAIL PROTECTED] wrote:
Hi, i suppose the second form of fact is not supported. but i'd like to
confirm.
in other words, you can only have setters and getters that return basic
java types. is that right? can i return java collections such as array and
map? the documentation is not clear on that.
thanks.
public class Paint
{
String getName();
String getColor();
}
public class Car
{
int getSize();
Paint getPaint();
}
jack.
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Re: [rules-users] NoMuchMethod - But there is!
Hi Steven, Looks like you are picking up the wrong org.eclipse.jdt.core jar at runtime. cheers Steve On 6/19/07, Steven Waldren [EMAIL PROTECTED] wrote: Hello, I downloaded the JBoss Rules 4.0 Eclipse IDE. I built a small project with about 120 rules. My test asserts around 500 objects. When I try to add one more rule (regardless of the content of the rule) I get the error below, stating no such method error. Even if I add the following rule, I still get the error: rule new rule when Object() then System.out.print(test); end What other problems can throw these errors? Thanks, Steven -- Steven E. Waldren, M.D., M.S. OpenHealth Data Skype: steven.waldren === THE ERROR == java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getProblems ()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; at org.apache.commons.jci.compilers.EclipseJavaCompiler$2.acceptResult( EclipseJavaCompiler.java:295) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:454) at org.apache.commons.jci.compilers.EclipseJavaCompiler.compile( EclipseJavaCompiler.java:332) at org.drools.rule.builder.dialect.java.JavaDialect.compileAll( JavaDialect.java:311) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:237) at org.drools.compiler.PackageBuilder.addPackageFromDrl( PackageBuilder.java:157) at com.sample.DroolsTest.readRule(DroolsTest.java:78) at com.sample.DroolsTest.main(DroolsTest.java:37) java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getProblems ()[Lorg/eclipse/jdt/core/compiler/CategorizedProblem; at org.apache.commons.jci.compilers.EclipseJavaCompiler$2.acceptResult( EclipseJavaCompiler.java:295) at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:454) at org.apache.commons.jci.compilers.EclipseJavaCompiler.compile( EclipseJavaCompiler.java:332) at org.drools.rule.builder.dialect.java.JavaDialect.compileAll( JavaDialect.java:311) at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:237) at org.drools.compiler.PackageBuilder.addPackageFromDrl( PackageBuilder.java:157) at com.sample.DroolsTest.readRule(DroolsTest.java:78) at com.sample.DroolsTest.main(DroolsTest.java:37) ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] How to stop a rule from firing?
One simple way is: [when] condition3 = not condition2 \\someCondition; [then] assert the Object2 into Working Memory; [when] condition4 = not condition2 \\someCondition; [then] Set the Error Message. Generally you should keep your rules independent of each other. If this is just a naive example of a more complex problem maybe you should look at the RuleFlow (in v4) or agenda groups. On 6/22/07, McShiv [EMAIL PROTECTED] wrote: Hi, I am using Drools 3.0.6. The rule is given below. Rule: [when] condition1 = \\someCondition; [then] assert the Object1 into Working Memory; [when] condition2 = \\someCondition; [then] set the Error Message. [when] condition3 = \\someCondition; [then] assert the Object2 into Working Memory; [when] condition4 = \\someCondition; [then] Set the Error Message. By requirement is when the condition2 is satisfied, the error code should be set and the following rules should not fire. If the condition2 is not satisfied, it goes to the condition3 and condition4. If condition4 satisfies, it should set the error code and stop firing the rules again. I dont know how to stop the rules from firing after the error code is set in the condition2. Can someone help me on this issue. Thanks Regards McShiv. -- View this message in context: http://www.nabble.com/How-to-stop-a-rule-from-firing--tf3961519.html#a11242241 Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] FW: Newbie: using a spreadsheet
In your Action column you should have: ACTION blank singleStatus.setAnswer($param); cheers Steve On 5/1/07, Hehl, Thomas [EMAIL PROTECTED] wrote: OK, here's my rules table: *RuleTable Court*** CONDITION CONDITION ACTION singleStatus: SingleParticipantStatus singleStatus: SingleParticipantStatus singleStatus: SingleParticipantStatus statusType value singleStatus.setAnswer($param); And this generates a rule that looks like this, for example: then singleStatus: SingleParticipantStatus.singleStatus.setAnswer (statusOnly);; This generates an error b/c it doesn't know how to resolve SingleParticipantStatus.singleStatus.setAnswer, which is where the error below is coming from. So I changed the rule table to simply say: setAnswer($param); Which generates: then singleStatus: SingleParticipantStatus.setAnswer (statusOnly);; Which causes the non-static method error since setAnswer is an instance method. Can anyone tell me what I'm doing wrong? Thanks. -- *From:* Hehl, Thomas *Sent:* Monday, April 30, 2007 8:42 AM *To:* 'rules-users@lists.jboss.org' *Subject:* Newbie: using a spreadsheet I've been following the ExamplePricePolicy example and am attempting to build my own rules using a spreadsheet. In my spreadsheet rules, I have the following: ACTION singleStatus: SingleParticipantStatus singleStatus.setAnswer($param); This throws: org.drools.rule.InvalidRulePackage: Rule Compilation error SingleParticipantStatus.singleStatus cannot be resolved Rule Compilation error SingleParticipantStatus.singleStatus cannot be resolved Rule Compilation error SingleParticipantStatus.singleStatus cannot be resolved Rule Compilation error SingleParticipantStatus.singleStatus cannot be resolved Rule Compilation error SingleParticipantStatus.singleStatus cannot be resolved When I googled on this error, most of the occurrences appeared to be related to an import issue, but if I change the third line to: setAnswer($param); It blows up because it knows that setAnswer is not a static method, which tends to tell me that it found my class. I think I've parroted the example exactly and so I'm confused as to where to go with this issue. Thanks! ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Fetching Facts from WM...
Two ways you could do it: List list = workingMemory.getObjects(Target.class); or use a query: drl: query target objects Target() end code: QueryResults results = workingMemory.getQueryResults( target objects ); cheers Steve On 4/10/07, jdepaul [EMAIL PROTECTED] wrote: Suppose my client code initially asserts two Facts into WorkingMemory instance: one Source object and one TargetOne object. As the rules get applied, some of the rules may assert additional Target facts into WM. How can I retrieve all of the Target facts (however many were created) from the WorkingMemory after fireAllRules() method was called (regardless of how many Target objects were created as a result)?! I will not know the concrete type of the target object types that were asserted into WM instance, as they can be as many as 7 class sub-types (TargetOne, TargetTwo, TargetThree), though they will all share a common super-class (com.mypackage.Target). Can someone show an example on how to fetch the resulting Target objects after fireAllRules() is called and filter out the Target objects? Thanks in advance - James -- View this message in context: http://www.nabble.com/Fetching-Facts-from-WM...-tf3550451.html#a9912199 Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Help : drools implementing
J2EE does not allow File I/O so it may be that your app server does not allow it by default and you need to give your application permission to do it. This would generally be done in a policy file (in WebSphere it is was.policy). Steve On 4/5/07, vista2007 [EMAIL PROTECTED] wrote: I want to call rules from session bean. I implement this by calling a utility callss from the Session bean method. That Utility class load the rule file as final Reader source = new InputStreamReader(BaseRuleImpl.class.getResourceAsStream(rulefile)); this gives the result as expected. But it throws an exception in the server as follows,(Server log) java.lang.Throwable at com.sun.enterprise.loader.EJBClassLoader$SentinelInputStream.init( EJBClassLoader.java:1123) at com.sun.enterprise.loader.EJBClassLoader$InternalJarURLConnection.getInputStream (EJBClassLoader.java:1216) at java.net.URL.openStream(URL.java:1009) at java.lang.ClassLoader.getResourceAsStream(ClassLoader.java :1161) at com.sun.enterprise.loader.EJBClassLoader.getResourceAsStream( EJBClassLoader.java:782) at java.lang.Class.getResourceAsStream(Class.java:2030) at org.drools.semantics.java.RuleBuilder.clinit(Unknown Source) at org.drools.compiler.PackageBuilder.addRule(Unknown Source) at org.drools.compiler.PackageBuilder.addPackage(Unknown Source) at org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown Source) at com.argosoftware.rules.impl.BaseRuleImpl.readRule(BaseRuleImpl.java:29) at com.argosoftware.rules.impl.RuleImpl.fireRule(RuleImpl.java:54) at com.argosoftware.rules.ejb.session.LogicHandlerBean.ruleHandler( LogicHandlerBean.java:42) I think this is because of the IO operation. Can anybody kindly suggest a solution for this.? -- View this message in context: http://www.nabble.com/Help-%3A-drools-implementing-tf3530032.html#a9851208 Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] java.lang.NoSuchMethodError:org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[
you also need stringtemplate-2.3b6.jar Steve On 2/19/07, Nagabhushanam B [EMAIL PROTECTED] wrote: hi I am facing a problem while deployed it in websphere community edition. My application is working fine when it is running in tomcat using jBoss Rules... but the same thing if I deployed in Webspehere then its throwing exception. i thought its because of antlr jar version mismatch , then i replaced new version on antlr-2.7.6 antlr-3.0ea8... still its giving the following exception... CharScannar : Parse ClassNotFoundException : org.antlr.stringtemplate.language.ChunkTocken Can any of you solve my problem. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] conditional insert of 'exist' or 'not' keywords in decision table s
Hi Vlad,
There is a very basic wiki page on it
(http://wiki.jboss.org/wiki/Wiki.jsp?page=DecisionTableTemplates
).
In terms of the functionality you mention you have your data having
knowledge of the rule templates whereas the current implementation is such
that the data has no knowledge of the templates. You can apply multiple rule
templates to the same data however (as in
ExternalSpreadsheetCompilerIntegrationTest):
final ExternalSpreadsheetCompiler converter = new
ExternalSpreadsheetCompiler();
final List listeners = new ArrayList();
ExternalSheetListener l1 = new ExternalSheetListener(10, 3,
/templates/test_pricing1.drl);
listeners.add(l1);
ExternalSheetListener l2 = new ExternalSheetListener(30, 3,
/templates/test_pricing2.drl);
listeners.add(l2);
converter.compile(/data/ExamplePolicyPricing.xls, InputType.XLS,
listeners);
This example assumes two sets of data in the one sheet, however they could
both have been applied to the same set (ie. the second listener could also
point to row 10, column 3). Would that accomplish what you need?
Steve
On 2/20/07, Olenin, Vladimir (MOH) [EMAIL PROTECTED] wrote:
Thanks, Steve. That really seems to do the trick. Are there any wiki
pages on this new functionality? Or for now one should refer to the source
code unit tests?
I also wonder what other functionality the new templating engine has? Is
it possible to define different 'types' of rules in the same 'rule' template
and refer to these types from 'Excel' data fields (eg, have one column per
rule where you can refer 'rule template XXX' from drl file; this value can
override some default value for example). If not, how such situations can be
handled? (ie, when one needs several type of rules driven by the same data?)
Thanks,
Vlad
--
*From:* [EMAIL PROTECTED] [mailto:
[EMAIL PROTECTED] *On Behalf Of *Steven Williams
*Sent:* 17 February 2007 04:25
*To:* Rules Users List
*Subject:* Re: [rules-users] conditional insert of 'exist' or 'not'
keywords in decision table s
Hi Vlad,
With the new decision table handling you could use the following template
to do it:
Given a table as follows:
exists, 21, 25
, comprehensive
not, 64, 100
exists, comprehensive
the following template does what you want:
template header
driver[]
policy[]
package This_is_a_ruleset;
#generated from Decision Table
import example.model.Driver;
import example.model.Policy ;
template Driver policy
driver
policy
rule driver policy $row.rowNumber$
when
$driver0$
Driver(age = $driver1$, age = $driver2$)
$policy0$
Policy(type = $policy1$)
then
//do smth
end
end template
the code to call it was:
public void testColumnKeywords() {
final ExternalSpreadsheetCompiler converter = new
ExternalSpreadsheetCompiler();
final String drl = converter.compile( /data/TestWorkbook.xls,
/templates/test_keywords.drl,
InputType.XLS, 1, 1 ); // DT
starts at Row 1, Column 1
System.out.println(drl);
}
cheers
Steve
On 2/17/07, *Olenin, Vladimir (MOH)* [EMAIL PROTECTED]
wrote:
Hi,
I wonder if it's possible to pass some Column keywords as parameters from
template values, eg:
Condition
Condition
$1 Driver
$1 Policy
age = $2, age = $3
type
exists, 21, 25
, comprehensive
not, 64, 100
exists, comprehensive
I'd expect the above table would generate two rules like:
Rule 1
When
exists Driver (age = 21, age = 25)
Policy(type == comprehensive)
Then
// do smth
End
Rule 2
When
not Driver (age = 64, age = 100)
exists Policy (type == comprehensive)
then
// do smth
End
The above example is just a mock up derived from one of the examples in
the documentation to demonstrate the point (meaning, the rules themselves
might not make sense from business point of view or can be implemented
differently for this particular case).
So, any way to achieve this? Whether in current version (3.0.x) or the
upcoming release (3.2)
Thanks,
Vlad
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Object Consulting
Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
[EMAIL PROTECTED]
www.objectconsulting.com.au
consulting | development | training | support
our experience makes the difference
Re: [rules-users] conditional insert of 'exist' or 'not' keywords in decision table s
Hi Vlad,
With the new decision table handling you could use the following template to
do it:
Given a table as follows:
exists, 21, 25
, comprehensive
not, 64, 100
exists, comprehensive
the following template does what you want:
template header
driver[]
policy[]
package This_is_a_ruleset;
#generated from Decision Table
import example.model.Driver;
import example.model.Policy;
template Driver policy
driver
policy
rule driver policy $row.rowNumber$
when
$driver0$
Driver(age = $driver1$, age = $driver2$)
$policy0$
Policy(type = $policy1$)
then
//do smth
end
end template
the code to call it was:
public void testColumnKeywords() {
final ExternalSpreadsheetCompiler converter = new
ExternalSpreadsheetCompiler();
final String drl = converter.compile( /data/TestWorkbook.xls,
/templates/test_keywords.drl,
InputType.XLS, 1, 1 ); // DT
starts at Row 1, Column 1
System.out.println(drl);
}
cheers
Steve
On 2/17/07, Olenin, Vladimir (MOH) [EMAIL PROTECTED] wrote:
Hi,
I wonder if it's possible to pass some Column keywords as parameters from
template values, eg:
Condition
Condition
$1 Driver
$1 Policy
age = $2, age = $3
type
exists, 21, 25
, comprehensive
not, 64, 100
exists, comprehensive
I'd expect the above table would generate two rules like:
Rule 1
When
exists Driver (age = 21, age = 25)
Policy(type == comprehensive)
Then
// do smth
End
Rule 2
When
not Driver (age = 64, age = 100)
exists Policy (type == comprehensive)
then
// do smth
End
The above example is just a mock up derived from one of the examples in
the documentation to demonstrate the point (meaning, the rules themselves
might not make sense from business point of view or can be implemented
differently for this particular case).
So, any way to achieve this? Whether in current version (3.0.x) or the
upcoming release (3.2)
Thanks,
Vlad**
___
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
--
Steven Williams
Supervising Consultant
Object Consulting
Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501
[EMAIL PROTECTED]
www.objectconsulting.com.au
consulting | development | training | support
our experience makes the difference
___
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Re: [rules-users] Convert logic to DRL rules
In trunk I think you can use connective constraints: $a : Person(age 35 | 25, zipCode == 23546 | == 68590) then $a.setStatus(KT); On 2/18/07, Bill Zhang [EMAIL PROTECTED] wrote: Hello, I am a new Drools user trying to convert the following simple logic into DRL: IF (Person.Age 35 OR Person.Age 25) AND (Person.ZipCode = 23546 or Person.ZipCode = 68590) THEN Person.Status = KT; I found that it is not easy to convert the above logic into ONE DRL rule. I tried something like this when $a: Person(age35) or Person (age25) $b: Person(Zipcode==23456) or Person (ZipCode == 68590) $c: $a and $b Then $c.setStatus(KT) But looks like I can not use $c: $a and $b becaue in Drools, you can only bind variable to column, not to other varaibles. Please advise how to do this. I would imagine this should be quite simple, maybe I missed something quite obvious. I know that I can write custom Java method to do this, but if I do that, I suppose I lose the power of RETEOO pattern matching (pattern resuing, etc.). So I prefer not to do that. I also understand I can break the above logic into 4 rules and that would be quite easy, but our business user is not used to think in that way. Also, we have more complex logic than the above. So what I want is to see if there is a way to convert this kind of logic in ONE DRL rule. Thanks in advance. Bill ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] How to generate rules from decision tables whereLHS has no field constraints
Hi Martin, The decision tables on trunk do what you want and should be available in the 3.1 release (I think). The new code separates the rule template from the data and is more flexible than the current version. There are some integration tests that demonstrate how to use it (have a look at ExternalSpreadsheetCompilerIntegrationTest). For your example you would use the following template: template header cheese smell package com.cheese; template calculateSmell smell rule calculateSmell $row.rowNumber$ when cheese:Cheese() then cheese.setSmell($smell$); end end template I will put up some further doco on the wiki tonight. cheers Steve On 2/15/07, Martin Weidner [EMAIL PROTECTED] wrote: Hi Michael, Thanks for your reply. Leaving a cell empty results in the condition not being added to the rule at all. Which is fine, cause then you're more flexible in grouping rules with different conditions together in one decision table I actually found a way yesterday, which seems to me more like a workaround. But it works: | 1 | RuleTable calculateSmell | | 2 |CONDITION| ACTION | | 3 | | cheese | | 4 | cheese:Cheese() | setSmell($param); | | 5 | for every cheese| set smell to stinky | | 6 | somevalue | stinky | By declaring the variable not in the row right underneath below the CONDITION cell, but in the row where you normally declare the conditions ( i.e. second row underneath the condition row AND putting in some random value in the cell, that holds the parameter value, you can generate the desired rule: #From row number: 6 rule calculateSmell_6 when cheese:Cheese() then cheese.setSmell(stinky);; end Leaving out the parameter value results in the when line being blank, so you gotta fill in something. I can live with that, but it seems to me more like a workaround, so I would be kinda curious whether there is (or will be) an official way of achieving this Best regards, Martin Van: Michael Neale [mailto:[EMAIL PROTECTED] Verzonden: donderdag 15 februari 2007 01:05 Aan: Rules Users List Onderwerp: Re: [rules-users] How to generate rules from decision tables whereLHS has no field constraints you should be able to do that - just leave the constraint cells empty, or put some comment in them. On 2/14/07, Martin Weidner [EMAIL PROTECTED] wrote: Hello, Maybe I have overlooked something, but I couldn't find a way to generate a simple rule from an excel decision table, where the left hand side contains no field constraints? i.e. rule do we have cheese WHEN cheese: Cheese() THEN RHS End Is there a way to achieve this? Thanks in advance, Martin _ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Focus before assertion - for pattern matching
I am pretty sure that all rules in all agenda groups run pattern matching and only those in the current agenda-group execute (at least that is the default behaviour). You can see this by using the audit logging feature. cheers Steve On 2/15/07, Michael Neale [EMAIL PROTECTED] wrote: not quite sure what you are asking, but I think the answer is yes, or it *should* be yes and there is a current limitation. On 2/14/07, Nirmal.R [EMAIL PROTECTED] wrote: Hi, Can i set the focus to a particular agenda group where in the engine tries to match the asserted object only to those set of rules Thank you Nirmal -- View this message in context: http://www.nabble.com/Focus-before-assertion---for-pattern-matching-tf3227311.html#a8965077 Sent from the drools - user mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Help Needed
Hi Shilpa, You can pass your DAOs (or any other object) into the working memory as globals and then use them in the consequence of your rules. cheers Steve On 2/13/07, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Hi, I am using Drools 3.0 in our business logic. I need help in the below situation I will take the records from the database on daily basis and each record is fact in the rule engine I will check the fact against some constant value; if it satisfies the condition then I need to update one field in the database. I am using Ibatis as DAO framework. How I can connect to database in *.drl* file? Please help me. Thanks Regards Shilpa The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- Steven Williams Supervising Consultant Object Consulting Office: 8615 4500 Mob: 0439 898 668 Fax: 8615 4501 [EMAIL PROTECTED] www.objectconsulting.com.au consulting | development | training | support our experience makes the difference ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
