Re: [rules-users] drools-spring dependency on drools-grid-impl
I resolved this by simply removing the jar and add dummy implementations in my own project for the required classes that are in drools-grid-impl. This is not pretty, but it works :) -- View this message in context: http://drools.46999.n3.nabble.com/drools-spring-dependency-on-drools-grid-impl-tp3541271p3541726.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
Re: [rules-users] drools-spring dependency on drools-grid-impl
Hi Kenny, extract the grid classes that drools-spring is dependent on out into a drools-grid artifact that instead of depending on the full impl Can you file a JIRA for this issue? http://issues.jboss.org - JBRULES Op 28-11-11 10:11, kennywest schreef: I resolved this by simply removing the jar and add dummy implementations in my own project for the required classes that are in drools-grid-impl. This is not pretty, but it works :) -- View this message in context: http://drools.46999.n3.nabble.com/drools-spring-dependency-on-drools-grid-impl-tp3541271p3541726.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 -- With kind regards, Geoffrey De Smet ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] facts custom sort
I don't want to sort facts outside of drools rules. The sorting is part of
business requirements. My opinion is that is not a good thing to keep parts
of business logic in different places.
I spent some time to figure out how it is possible to sort a collection of
facts and here is my solution:
---
function String factKey(Fact f)
{
return String.format( %010d~~%s~~%s, f.getRank(), f.getName(),
f.getValue() );
}
query sortFactsQuery
$factsMap: HashMap()
from accumulate( $f: Fact(),
init( HashMap map = new HashMap(); ),
action( map.put(factKey($f), $f); ),
reverse( map.remove(factKey($f)); ),
result( map ) )
$sortedKeyList: TreeSet()
from collect( String() from $factsMap.keySet() )
$sortedFacts: List()
from accumulate( $key: String() from $sortedKeyList,
collectList( $factsMap.get( $key ) ) )
end
---
--
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http://drools.46999.n3.nabble.com/facts-custom-sort-tp3538410p3541805.html
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[rules-users] Call query from other query
I read in Drools guide, that queries can now call other queries. But the guide doesn't give much details, mostly paying attention to a rather specific case. I have two queries having common parts and try to figure out how to get rid of duplicate code. Here is the simplified form of queries I'd like to have: - query query1 $facts: List() from collect( Fact( name == name1 ) ) end query query2 $l: List() from collect( Fact( value == 1 ) from ?query1() ) end - query2 syntax is invalid and and it is not clear for me how $facts from query1 can be accessed in query2. -- View this message in context: http://drools.46999.n3.nabble.com/Call-query-from-other-query-tp3542082p3542082.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
Re: [rules-users] drools-spring dependency on drools-grid-impl
Yes we can do that pretty quickly. It was in that way in the past but now with the new refactorings it becomes a single module again. On Mon, Nov 28, 2011 at 6:23 AM, Geoffrey De Smet ge0ffrey.s...@gmail.com wrote: Hi Kenny, extract the grid classes that drools-spring is dependent on out into a drools-grid artifact that instead of depending on the full impl Can you file a JIRA for this issue? http://issues.jboss.org - JBRULES Op 28-11-11 10:11, kennywest schreef: I resolved this by simply removing the jar and add dummy implementations in my own project for the required classes that are in drools-grid-impl. This is not pretty, but it works :) -- View this message in context: http://drools.46999.n3.nabble.com/drools-spring-dependency-on-drools-grid-impl-tp3541271p3541726.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 -- With kind regards, Geoffrey De Smet ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jugargentina.org - Co-Founder @ http://www.jbug.com.ar - Salatino Salaboy Mauricio - ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] drools-spring dependency on drools-grid-impl
Done: https://issues.jboss.org/browse/JBRULES-3299 The dummy classes and interfaces I'm using are also included. -- View this message in context: http://drools.46999.n3.nabble.com/drools-spring-dependency-on-drools-grid-impl-tp3541271p3542201.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
Re: [rules-users] RuleFlow WorkItem check for abort
Hi Cherokee, To answer your first question you can check the state of a workitem in its onExit action by: import org.jbpm.workflow.instance.node.WorkItemNodeInstance import org.drools.runtime.process.WorkItem WorkItem workItem = ((WorkItemNodeInstance)kcontext.getNodeInstance()).getWorkItem(); System.out.println(State of the workitem + workItem.getName() + on exit is + workItem.getState()); I hope it could be useful. Quevedo -- View this message in context: http://drools.46999.n3.nabble.com/RuleFlow-WorkItem-check-for-abort-tp2778938p3542291.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
Re: [rules-users] Fusion : must declare @role(event) for all class hierarchy ?
Well, after trying and trying to reproduce with a simpler case, @role is always correctly inherited. But in my application, it seems not, or may be it is another problem. I have 3 classes : ChantierEvent (the main mother class) and its 2 subClasses : InitEvent and DisposeEvent When I declare @role(event) for all 3 classes, everything works wells When I only declare for the motherclass, this exception is raised (at insertion of a InitEvent) : java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:316) at org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:122) at org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:121) at org.drools.common.TripleBetaConstraints.isAllowedCachedRight(TripleBetaConstraints.java:208) at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:158) at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255) -- call of insert(new InitEvent(...)); at com.sncf.morse.server.MVFusionThreadSession.addEvent(MVFusionThreadSession.java:158) I first think about a problem on after operator, so I commented out the rule that uses it, and this error is raised then (I also use sliding windows) : java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle at org.drools.rule.SlidingTimeWindow.updateNextExpiration(SlidingTimeWindow.java:211) at org.drools.rule.SlidingTimeWindow.assertRightTuple(SlidingTimeWindow.java:128) at org.drools.rule.BehaviorManager.assertRightTuple(BehaviorManager.java:84) at org.drools.reteoo.NotNode.assertObject(NotNode.java:114) at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255) -- call of insert(new InitEvent(...)); at com.sncf.morse.server.MVFusionThreadSession.addEvent(MVFusionThreadSession.java:158) Do you have any ideas on why this could happend ? In what case the role could not be inherited (I tried to make my minimal sample class look like the real one, but I can't reproduce ..). thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor hates me
Thanks Michael ... you've been very helpful. Yes, I am considering helping out on the documentation (my undergrad is in Instructional Technology) ... if I can ever figure out how all of this works. I have also read thru some of the 3rd party books on the subject, and I find them quite lacking also. I am not a dumb person, and I am not inexperienced (been programming since 1980) ... so either I am just having issues with the writing style of the manuals/books, or other people are having trouble with them as well. While we're waiting for an eclipse person to speak up, I have another eclipse question. If I do a Project-Build All, I can see the errors in my rule files. How can I configure eclipse to see the drl errors when I save the files (as happens with my Java files). Thanks. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Fusion : must declare @role(event) for all class hierarchy ?
Vincent, It seems it is a merging problem on declarations, but unfortunately, the exceptions you are seeing are the symptoms, not the cause, so I can't infer much from them. Some suggestions to try to isolate the problem: are the fact types (classes) in the same package or different packages? Are the declaration(s)/rules in the same file or different files? Are you using a single kbuilder to build the whole thing on your application or using different kbuilders? Is the order in which you are loading the files into the kbuilder and the order you add packages in your kbase the same on your application and your test? These are some of the conditions that trigger declaration merges. I know it is not much, but try checking these things... maybe you get lucky and manage to reproduce the problem so that we can debug it and fix it. Also, which version of Drools are you using? Did you tried with latest snapshot from the 5.3.x branch or with master branch (5.4.x)? Any additional information you can give us might help us figure out the problem. Thanks, Edson On Mon, Nov 28, 2011 at 11:01 AM, Vincent LEGENDRE vincent.legen...@eurodecision.com wrote: Well, after trying and trying to reproduce with a simpler case, @role is always correctly inherited. But in my application, it seems not, or may be it is another problem. I have 3 classes : ChantierEvent (the main mother class) and its 2 subClasses : InitEvent and DisposeEvent When I declare @role(event) for all 3 classes, everything works wells When I only declare for the motherclass, this exception is raised (at insertion of a InitEvent) : java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle at org.drools.base.evaluators.AfterEvaluatorDefinition$AfterEvaluator.evaluateCachedRight(AfterEvaluatorDefinition.java:316) at org.drools.rule.VariableRestriction.isAllowedCachedRight(VariableRestriction.java:122) at org.drools.rule.VariableConstraint.isAllowedCachedRight(VariableConstraint.java:121) at org.drools.common.TripleBetaConstraints.isAllowedCachedRight(TripleBetaConstraints.java:208) at org.drools.reteoo.JoinNode.assertObject(JoinNode.java:158) at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255) -- call of insert(new InitEvent(...)); at com.sncf.morse.server.MVFusionThreadSession.addEvent(MVFusionThreadSession.java:158) I first think about a problem on after operator, so I commented out the rule that uses it, and this error is raised then (I also use sliding windows) : java.lang.ClassCastException: org.drools.common.DefaultFactHandle cannot be cast to org.drools.common.EventFactHandle at org.drools.rule.SlidingTimeWindow.updateNextExpiration(SlidingTimeWindow.java:211) at org.drools.rule.SlidingTimeWindow.assertRightTuple(SlidingTimeWindow.java:128) at org.drools.rule.BehaviorManager.assertRightTuple(BehaviorManager.java:84) at org.drools.reteoo.NotNode.assertObject(NotNode.java:114) at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:458) at org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:386) at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:215) at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:244) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:330) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:291) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:886) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:845) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:255) -- call of insert(new InitEvent(...)); at com.sncf.morse.server.MVFusionThreadSession.addEvent(MVFusionThreadSession.java:158) Do you have any ideas on why this could happend ? In what case the role could not be inherited (I tried to make my minimal
[rules-users] Unclear error when rule name missing
I guess I need to learn how to submit bugs. Any help is appreciated. If you forget the name of the rule, instead of a clear error (like Rule name missing) you get a NullPointerException with no indication why. Thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Spring, KnowledgeAgent, and Guvnor
Seems that upgrading my Guvnor install to match the version Drools in my project has done the trick to some extent. Still dealing with some errors, but the original error has not presented itself. -- View this message in context: http://drools.46999.n3.nabble.com/Spring-KnowledgeAgent-and-Guvnor-tp3500761p3542830.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
Re: [rules-users] duration attribute other rule language features issue
It seems that a full definition of the semantics of @expires is still missing from the Fusion manual. After that time, assuming no rule *still needs the event*, the engine will expire and remove the event from the session automatically. (Emphasis by me.) So, when does a rule need an event? This is a very iffy definition. Consider: when Event() then This rule certainly needs an Event fact, but does it still need it after the first firing? Not unless Event() is modified, which might happen elsewhere. In the case of a timer() being added to a rule, there is a similar dilemma. A rule like rule timer(int: 5s) when Event() then does and, simultaneously does not, need an Event() fact. If Event() is retracted after less than 5s, the rule should not fire - so the rule does not need the fact. OTOH, its timed firing depends on the presence of an Event() - so the rule needs the fact. You can easily thwart the algorithm that determines is needed: rule check timer attribute timer (int: 5s 1s) when $alert : Object( eval($alert instanceof Alert) ) from entry-point EventStream then System.out.println( ((Alert)$alert).getId() + time: + (Calendar.getInstance().getTimeInMillis())); end -W On 28 November 2011 07:32, prashant.badhe prashant.ba...@gmail.com wrote: Here is the complete rule that we trying out with 'timer' '@expires' : ~ package xyz; import abc.Alert; import abc.CResult; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.Date; import java.util.Calendar; import java.util.Timer; declare Alert @role( event ) @expires( 30s ) end declare CResult @role( event ) @expires( 30s ) end rule check timer attribute agenda-group xyz auto-focus true no-loop salience 140 timer (int: 5s) //duration ( 5s ) when $alert : Alert( $alertId:id ) from entry-point EventStream then System.out.println(Inside RHS...[alert= + $alert.getId() + ] [Time: + (Calendar.getInstance().getTimeInMillis())); end ~ We are trying this out on Drools 5.3.0 stateful knowledge session operating in stream mode. The above rule is not firing on inserting Alert fact. If I comment line 'timer (int: 5s 5s)' then it starts firing. About the @expires, our assumption is Alert fact inserted is not expiring, as the count returned by getFactCount() on WM entrypoint object is returned as 1 even after a thread sleep of more than 60 seconds post the rule firing. Please correct us if this assumption is wrong or something more is required for @expires to work. Similarly for timer(int: 5s) let us know what is wrong. Does the facts that are expired remains in WM but are not evaluated for any new facts/rules inserted in WM OR they are removed from WM? -Prashant -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-duration-attribute-other-rule-language-features-issue-tp3536857p3541469.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] Unclear error when rule name missing
2011/11/28 Ronald Albury ronalb...@gmail.com I guess I need to learn how to submit bugs. Any help is appreciated. For starters, you can look at http://www.atlassian.com/software/jira/overview and study some examples at https://jira.jboss.org/browse/JBRULES. If you forget the name of the rule, instead of a clear error (like Rule name missing) you get a NullPointerException with no indication why. A lot is lacking for this to be a usable bug report: no version; no stack dump; no complete (minimal) example to reproduce the bug. -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
Re: [rules-users] Fusion : must declare @role(event) for all class hierarchy ?
Hi Edson, and thanks for answering ? - are the fact types (classes) in the same package or different packages? Different packages. But I tried this on my little sample (put the sub-class in another package than the mother class), and this works ? - Are the declaration(s)/rules in the same file or different files? Same file (DRL) ? - Are you using a single kbuilder to build the whole thing on your application or using different kbuilders? ? - Is the order in which you are loading the files into the kbuilder and the order you add packages in your kbase the same on your application and your test? My kbase has a unique package, got from a single DRL file, built by a single (new) kbuilder. But I use one kbuilder per package, only for build time, and I have other packages / kbases, for other rule sessions ... Here I create 3 packages (and 3 kbases), using one new kbuilder for each. These 3 packages don't have any fusion construction in them. Then I build the 4th package / kbase, using one new kbuilder, and this is this package which contains some fusion rules. Does kbuilders can collide in some way ? May be that as the 3 first package don't use any fusion, all the classes are tagged as not event, kept somewhere, and reused in the 4th kbuilder, that only update the explicitely event classes ? I will try to load the fusion kb first to see what happend ... but I am sceptic, as the 3 first package don't use the ***Event objects ... There is another difference on my package build process. My little test is built over the Hello World sample. My app uses more sophisticated way of getting resources, but finally calls the same kbuilder.add ... magic method ... The only difference is that : - HelloWorld sample, and my little test, uses kbuilder.add( newClassPathResource(...) , ResourceType.DRL) to get resources that are located in a eclipse source folder - My application uses kbuilder.add( newFileResource(...) , ResourceType.DRL) to fetch resources in the file system I am quite sure that the difference cannot be here for real ... I guess that all of these methods finally result in opening a InputStream that contains DRL raw text to feed a parser, which don't care about how the inputStream was created ... ? - Also, which version of Drools are you using? Did you tried with latest snapshot from the 5.3.x branch or with master branch (5.4.x)? 5.3.Final official stable version. and before that the 5.2.Final version (problem is there too). Did not tried with any not official version (I already experienced problem when migrating guvnor repos from candidates releases ...). ? - Any additional information you can give us might help us figure out the problem. Ok. The problem here is that I can't provide you the full code, and anyway you won't go into this code for some mysterious bug ... The two sub classes (InitEvent, and DisposeEvent) are very basic derivated classes. They only use extends ChantierEvent and nothing more (no interfaces). They have a different constructor signature than their parent, but I also test that with my little sample and this is not the problem .. . These classes have attributes that links to other classes in the project. By transitivity, all business objects are loaded (by the class loader). These BO contains annotations for DB persistance (but they are attributes, the ***Event classes does not have any annotations). I don't know what to add ... I will go on testing a bit, and report back here. Thanks ! ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Fusion : must declare @role(event) for all class hierarchy ?
Tried to load my fusion package before any others. Same problem - Mail original - De: Vincent LEGENDRE vincent.legen...@eurodecision.com À: Rules Users List rules-users@lists.jboss.org Envoyé: Lundi 28 Novembre 2011 19:48:03 Objet: Re: [rules-users] Fusion : must declare @role(event) for all class hierarchy ? Hi Edson, and thanks for answering ? - are the fact types (classes) in the same package or different packages? Different packages. But I tried this on my little sample (put the sub-class in another package than the mother class), and this works ? - Are the declaration(s)/rules in the same file or different files? Same file (DRL) ? - Are you using a single kbuilder to build the whole thing on your application or using different kbuilders? ? - Is the order in which you are loading the files into the kbuilder and the order you add packages in your kbase the same on your application and your test? My kbase has a unique package, got from a single DRL file, built by a single (new) kbuilder. But I use one kbuilder per package, only for build time, and I have other packages / kbases, for other rule sessions ... Here I create 3 packages (and 3 kbases), using one new kbuilder for each. These 3 packages don't have any fusion construction in them. Then I build the 4th package / kbase, using one new kbuilder, and this is this package which contains some fusion rules. Does kbuilders can collide in some way ? May be that as the 3 first package don't use any fusion, all the classes are tagged as not event, kept somewhere, and reused in the 4th kbuilder, that only update the explicitely event classes ? I will try to load the fusion kb first to see what happend ... but I am sceptic, as the 3 first package don't use the ***Event objects ... There is another difference on my package build process. My little test is built over the Hello World sample. My app uses more sophisticated way of getting resources, but finally calls the same kbuilder.add... magic method ... The only difference is that : - HelloWorld sample, and my little test, uses kbuilder.add( newClassPathResource(...) , ResourceType.DRL) to get resources that are located in a eclipse source folder - My application uses kbuilder.add( newFileResource(...) , ResourceType.DRL) to fetch resources in the file system I am quite sure that the difference cannot be here for real ... I guess that all of these methods finally result in opening a InputStream that contains DRL raw text to feed a parser, which don't care about how the inputStream was created ... ? - Also, which version of Drools are you using? Did you tried with latest snapshot from the 5.3.x branch or with master branch (5.4.x)? 5.3.Final official stable version. and before that the 5.2.Final version (problem is there too). Did not tried with any not official version (I already experienced problem when migrating guvnor repos from candidates releases ...). ? - Any additional information you can give us might help us figure out the problem. Ok. The problem here is that I can't provide you the full code, and anyway you won't go into this code for some mysterious bug ... The two sub classes (InitEvent, and DisposeEvent) are very basic derivated classes. They only use extends ChantierEvent and nothing more (no interfaces). They have a different constructor signature than their parent, but I also test that with my little sample and this is not the problem ... These classes have attributes that links to other classes in the project. By transitivity, all business objects are loaded (by the class loader). These BO contains annotations for DB persistance (but they are attributes, the ***Event classes does not have any annotations). I don't know what to add ... I will go on testing a bit, and report back here. 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
Re: [rules-users] facts custom sort
You can simplify the query:
query sortedItems
TreeMap( $values: values() )
from accumulate( $f: Fact(),
init( TreeMap map = new TreeMap(); ),
action( map.put(factKey($f), $f); ),
reverse( map.remove(factKey($f)); ),
result( map ) )
end
-W
On 28 November 2011 10:58, Syargey syar...@tut.by wrote:
I don't want to sort facts outside of drools rules. The sorting is part of
business requirements. My opinion is that is not a good thing to keep parts
of business logic in different places.
I spent some time to figure out how it is possible to sort a collection of
facts and here is my solution:
---
function String factKey(Fact f)
{
return String.format( %010d~~%s~~%s, f.getRank(), f.getName(),
f.getValue() );
}
query sortFactsQuery
$factsMap: HashMap()
from accumulate( $f: Fact(),
init( HashMap map = new HashMap(); ),
action( map.put(factKey($f), $f); ),
reverse( map.remove(factKey($f)); ),
result( map ) )
$sortedKeyList: TreeSet()
from collect( String() from $factsMap.keySet() )
$sortedFacts: List()
from accumulate( $key: String() from $sortedKeyList,
collectList( $factsMap.get( $key )
) )
end
---
--
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[rules-users] Retrieving rule name in then clause
Is there a simple way for me to be able to access the rule name in the 'then' clause? When rules fail I want to pass the rule name into my internal error handler. Thanks in advance ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Retrieving rule name in then clause
Let me clarify in advance ... my rules are detecting errors in input data ... so when a rule fires it accesses my internal error handler. I realize that rules fire when they succeed, not when they fail. On Mon, Nov 28, 2011 at 4:56 PM, Ronald Albury ronalb...@gmail.com wrote: Is there a simple way for me to be able to access the rule name in the 'then' clause? When rules fail I want to pass the rule name into my internal error handler. Thanks in advance ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Retrieving rule name in then clause
not from the rule, but you can use an agenda listener for the same From: Ronald Albury ronalb...@gmail.com To: rules-users@lists.jboss.org Date: 11/28/2011 02:58 PM Subject:[rules-users] Retrieving rule name in then clause Sent by:rules-users-boun...@lists.jboss.org Is there a simple way for me to be able to access the rule name in the 'then' clause? When rules fail I want to pass the rule name into my internal error handler. Thanks in advance___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users - The information contained in this communication (including any attachments hereto) is confidential and is intended solely for the personal and confidential use of the individual or entity to whom it is addressed. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this communication in error and that any review, dissemination, copying, or unauthorized use of this information, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. Thank you ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Retrieving rule name in then clause
Actually, you can do /then ... drools.getRule().getName() ... end/ drools is a reference to an instance implementing the KnowledgeHelper interface. -- View this message in context: http://drools.46999.n3.nabble.com/rules-users-Retrieving-rule-name-in-then-clause-tp3543557p3543606.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
Re: [rules-users] Spring, KnowledgeAgent, and Guvnor
We'll be working on deployment next year that is not tied to specific versions of drools. The reason for this is that the Packge is really just a cached form representing the DRL, to avoid compiling drls on the client. We actually just serialise the resulting objects. But internally we do a lot of changes as we add features, so binary compatability of these cached objects is not easily and cheapily possible. In the future we hope to produec a simpler intermediary format that will be durable across different versions of drools. It will require the clients to do a bit more work, as it won't be as cheap as serialisation. But we hope that it'll be an acceptable trade off. Mark On Mon, Nov 28, 2011 at 5:23 PM, paulB paul.bor...@sironahealth.com wrote: Seems that upgrading my Guvnor install to match the version Drools in my project has done the trick to some extent. Still dealing with some errors, but the original error has not presented itself. -- View this message in context: http://drools.46999.n3.nabble.com/Spring-KnowledgeAgent-and-Guvnor-tp3500761p3542830.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] Call query from other query
The query is treated just like a pattern. ? indicates whether the query should be materialised or not. In general if you aren't sure, then don't include the ? and let it materialise. The queries do not return any results, they are not functions. Like patterns the resuls are returned from out variable bindings in the parameters. The work in the same way that prolog predicates work, and you can find tuns of literatore on that. see 2.2.2.8 has a fair overview of this: http://docs.jboss.org/drools/release/5.3.0.Final/droolsjbpm-introduction-docs/html/releaseNotes.html#d0e50 see 5.9 here: http://docs.jboss.org/drools/release/5.3.0.Final/drools-expert-docs/html/ch05.html#d0e6233 This should work for your example: query query1(List $facts) $facts := List() from collect( Fact( name == name1 ) ) end query query2 query1($l;) end The above $l should join with the results of query1, as it's unbound and thus an output variable. Mark On Mon, Nov 28, 2011 at 12:41 PM, Syargey syar...@tut.by wrote: I read in Drools guide, that queries can now call other queries. But the guide doesn't give much details, mostly paying attention to a rather specific case. I have two queries having common parts and try to figure out how to get rid of duplicate code. Here is the simplified form of queries I'd like to have: - query query1 $facts: List() from collect( Fact( name == name1 ) ) end query query2 $l: List() from collect( Fact( value == 1 ) from ?query1() ) end - query2 syntax is invalid and and it is not clear for me how $facts from query1 can be accessed in query2. -- View this message in context: http://drools.46999.n3.nabble.com/Call-query-from-other-query-tp3542082p3542082.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
