May 2012 - rules-users - Jboss List Archives

Want to host IntelliFest (previously RuleFest)?

by Mark Proctor

IntelliFest (previously RuleFest) is currently trying to find premises on the west coast of USA, with near by accomodation, to host 150 people for 4 days. Interested in hosting? If so contact me on mproctor at codehaus d0t org

13 years, 11 months

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Using declared type from decision table/drl with Guvnor Test Scenario

by mpgong

Hello, Is it possible to use a declared type from the decision table or drl as a "given" item with Guvnor test scenario? When i create a new test scenario and click on given, i don't see the declared type I only see items from my model jar. I can only see declared types if i define them in Guvnor but i don't want to do it that way unless i have to. I want all of that contained in my xls or drl and just upload utility classes that are needed in the xls/drl. Thanks -- View this message in context: http://drools.46999.n3.nabble.com/Using-declared-type-from-decision-table... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 11 months

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Persist JPA Entity fact in session

by Alberto R. Galdo

Hi, We are in a fireUntilHalt during a persistent StatefulKnowledgeSession using JTA & JPA with Hibernate ... Our session consists in a series of facts ( well, we are not different of anyone else for that matter ... xD ) but some of our facts are also JPA @Entity . What we want is to persist those entities on their own database tables as well as the SessionInfo each time Drools considers the knowledge session needs to be persisted. We are aware that Drools uses org.drools.persistence.jpa.persist(SessionInfo) .... What would be the best approach to get certain facts that are JPA Entities persisted along with the Session taking advantage of the Drool's SessionInfo persistence loop? Best regards, Alberto R. Galdo argaldo(a)gmail.com

13 years, 11 months

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accessing session clock from accumulation function or rule body?

by radai rosenblatt

hi. i'm writing an accumulation function taht needs access to the session clock - is this possible from within the accumulation function ? if not, is this possible from the rule code (the when section) ? i could pass the current time as an argument ... thanks in advance for any assistance. -- View this message in context: http://drools.46999.n3.nabble.com/accessing-session-clock-from-accumulati... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 11 months

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KnowledgeRuntimeLogger

by Dennis Lupiana

13 years, 11 months

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[Designer] Problem installing service from repository

by Cristiano Gavião

Hi, I'm using Designer 2.2 with Guvnor 3.4 in a Jboss AS 7.1. I could connect to this service repository url: http://people.redhat.com/kverlaen/repository in the Designer editor. I've selected the Twitter service but I got this error: 19:58:58,896 ERROR [org.jbpm.designer.web.server.JbpmServiceRepositoryServlet] (http--127.0.0.1-8080-5) Could not find the package for uuid: c3142f2a-084b-423f-8afa-640c84140075 Am I missing something ? regards, Cristiano

13 years, 11 months

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[5.4.0] Combining custom operators with OR results in compile error

by Stathis Rouvas

Hello List, I recently migrated from Drools.5.0.1 to Drools.5.4.0 and I am having issues when combining constraints with OR when custom operators are involved. For example, the following rule: rule "r548695.1" no-loop true dialect "mvel" when gnId : GN() la : t547147( ) v1717 : Tra48( gnId.gNo==gNo , name F_str[startsWith] la.c547148 || postCode F_str[contains] la.c547149 ) then System.out.println("Rule r548695.1 fired"); end results in the following exception: Unable to Analyse Expression gnId.gNo == gNo && ( F_str0.evaluate( name, la.c547148 ) || F_str1.evaluate( postCode, la.c547149 ) ): [Error: unable to resolve method using strict-mode: my.package.rulez.Tra48.F_str0()] [Near : {... gNo == gNo && ( F_str0.evaluate( name, la.c54 ....}] ^ : [Rule name='r548695.1'] Please note, that the same rule using AND (&&) between the custom operators compiles OK. The above rule had not problem whatsoever in Drools.5.0.1. Any ideas to overcome this issue, are most welcomed. -Stathis

13 years, 11 months

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Drools function not working with Javassist facts

by Ayush

Hello, I'm trying to build a rule which accepts the dynamic facts. The dynamic facts are created using the javassist API. The rule works fine when I'm adding a single rule but as soon as I declare any function in the drl file the rule doesn't compile. *Following is the code sample for creating the dynamic facts.* // creating class object final ClassPool pool = ClassPool.getDefault (); CtClass evalClass = pool.makeClass ("drools.dynamic.MyDynamicClass"); // creating class field final CtField nameField = new CtField (CtClass.intType, "Count", evalClass); nameField.setModifiers (Modifier.PRIVATE); evalClass.addField (nameField); // creating getter for the above created field. final CtMethod getter = CtNewMethod.getter ("getCount", nameField); evalClass.addMethod (getter); // creating setter for the above created field. final CtMethod setter = CtNewMethod.setter ("setCount", nameField); evalClass.addMethod (setter); // finally creating class final Class tempClass = evalClass.toClass (); // creating class object Object obj = tempClass.newInstance() // inserting it in drools droolsSession.insert(obj) *Following is the rule * rule "DynamicFactRule" dialect "mvel" when $obj : MyDynamicClass() then $obj.setCount(8); System.out.println("Count set is: "+$obj.getCount(8)); end *This rule works fine but when I'm adding a function in drl file then it throws error: * 1) Unable to resolve ObjectType 'MyDynamicClass' 2)Error importing : 'defaultpkg.LogMessage.logMessage' *The function I added is* function void logMessage() { System.out.println("This is log message"); } *Following is the environment I'm using* - Drools 5.3.0 - JBoss 6.x - JDK6 I looked at many approaches but I'm confused and out of soln, as none of it is working. I also tried looking at Drools trait but it's going over my head I'll highly appreciate if someone can please suggest what should be the ideal approach to solve it. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-function-not-working-with-Javass... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 11 months

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How to add multiple conditions in condition column of decision table in Guvnor??

by zeeshan

Hi ! I am unable to add more than one condition in a condition column like *age >= $1, age <= $2* using Guvnor in Decision Table(Web guided Editor). How to do this ??? Thanks !!! Please refer to screen shots attached. http://drools.46999.n3.nabble.com/file/n4006114/111.png http://drools.46999.n3.nabble.com/file/n4006114/222.png -- View this message in context: http://drools.46999.n3.nabble.com/How-to-add-multiple-conditions-in-condi... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 11 months

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Re: [rules-users] [Drools Planner 5.4.x] How to access ConstraintOccurrences in a BestSolutionRecaller

by ge0ffrey

((DroolsScoreDirector) stepScope.getScoreDirector()).getWorkingMemory() michael.zeising wrote > > Hi there, > > I'm writing my own /BestSolutionRecaller/ for collecting every solution > that is evaluated. I'm overriding > > > > so I get the new solution by calling > > > > Now, I'd like to find the /ConstraintOccurrence/ objects that were created > when evaluating the solution. In 5.3.x I could call > > > > and the iterator contained the /ConstraintOccurrence/ objects besides > others. Is there a way to access these occurences in 5.4.x? > > Thanks in advance! > -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Planner-5-4-x-How-to-access-Cons... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 11 months

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rules-users May 2012