July 2011 - rules-users - Jboss List Archives

by ketaki

Hi Experts, I am facing one issue while integrating drools with Spring. I have done the following configurations Beans.xml : <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:drools="http://drools.org/schema/drools-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.directwebremoting.org/schema/spring-dwr http://www.directwebremoting.org/schema/spring-dwr-2.0.xsd http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-containe..."> <bean id="droolsDAOImpl" class="com.dao.DroolsDAOImpl"> <property name="sessionFactory" ref="mySessionFactory" /> <property name="ksession" ref="ksession" /> <property name="intermediateData" ref="intermediateData" /> <property name="kbase" ref="kbase" /> </bean> <bean id="intermediateData" class="com.pojo.IntermediateData" /> <drools:kbase id="kbase"> <drools:resources> <drools:resource type="DRL" source="classpath:Sample.drl"></drools:resource> </drools:resources> </drools:kbase> <drools:ksession id="ksession" type="stateful" kbase="kbase"/> ---------------------------------------------------------------------------------------------------- DroolsDAOImpl.java : public class DroolsDAOImpl implements DroolsDAO { private StatefulKnowledgeSession ksession; private IntermediateData intermediateData; private KnowledgeBase kbase; public KnowledgeBase getKbase() { return kbase; } public void setKbase(KnowledgeBase kbase) { this.kbase = kbase; } public StatefulKnowledgeSession getKsession() { return ksession; } public void setKsession(StatefulKnowledgeSession ksession) { this.ksession = ksession; } public static void main(String args[]) throws Exception{ Resource res = new ClassPathResource("beans.xml"); BeanFactory factory = new XmlBeanFactory(res); DroolsDAOImpl droolsDAOImpl=(DroolsDAOImpl)factory.getBean("droolsDAOImpl"); droolsDAOImpl.init_drools(); } public void init_drools() throws Exception{ try { ksession = kbase.newStatefulKnowledgeSession(); intermediateData.setNoofPay(noofPaytemp()); intermediateData.setRegPay(regpaytemp()); ksession.insert(intermediateData); ksession.fireAllRules(); } catch (Throwable t) { logger.error("Exception occured in DroolsDAOImpl---"+t); throw new Exception("Some Error Occured. Please try after some time"); } } I am having one drl file : Sample.drl which contains rule and IntermediateData is simple pojo. But after running this I am getting following error: Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'drools:kbase'. Can anyone help me with this issue? Thanks in advance -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Integration-with-Spring-tp314794... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 4 months

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Drools Integration with Spring

by Ketaki.Deshpande＠cognizant.com

Hi Experts, I am facing one issue while integrating drools with Spring. I have done the following configurations Beans.xml : <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:drools="http://drools.org/schema/drools-spring" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:dwr="http://www.directwebremoting.org/schema/spring-dwr" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.directwebremoting.org/schema/spring-dwr http://www.directwebremoting.org/schema/spring-dwr-2.0.xsd http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-contain er/drools-spring/src/main/resources/org/drools/container/spring/drools-s pring-1.0.0.xsd"> <bean id="droolsDAOImpl" class="com.dao.DroolsDAOImpl"> <property name="sessionFactory" ref="mySessionFactory" /> <property name="ksession" ref="ksession" /> <property name="intermediateData" ref="intermediateData" /> <property name="kbase" ref="kbase" /> </bean> <bean id="intermediateData" class="com.pojo.IntermediateData" /> <drools:kbase id="kbase"> <drools:resources> <drools:resource type="DRL" source="classpath:Sample.drl"></drools:resource> </drools:resources> </drools:kbase> <drools:ksession id="ksession" type="stateful" kbase="kbase"/> ------------------------------------------------------------------------ ---------------------------- DroolsDAOImpl.java : public class DroolsDAOImpl implements DroolsDAO { private StatefulKnowledgeSession ksession; private IntermediateData intermediateData; private KnowledgeBase kbase; public KnowledgeBase getKbase() { return kbase; } public void setKbase(KnowledgeBase kbase) { this.kbase = kbase; } public StatefulKnowledgeSession getKsession() { return ksession; } public void setKsession(StatefulKnowledgeSession ksession) { this.ksession = ksession; } public static void main(String args[]) throws Exception{ Resource res = new ClassPathResource("beans.xml"); BeanFactory factory = new XmlBeanFactory(res); DroolsDAOImpl droolsDAOImpl=(DroolsDAOImpl)factory.getBean("droolsDAOImpl"); droolsDAOImpl.init_drools(); } public void init_drools() throws Exception{ try { ksession = kbase.newStatefulKnowledgeSession(); intermediateData.setNoofPay(noofPaytemp()); intermediateData.setRegPay(regpaytemp()); ksession.insert(intermediateData); ksession.fireAllRules(); } catch (Throwable t) { logger.error("Exception occured in DroolsDAOImpl---"+t); throw new Exception("Some Error Occured. Please try after some time"); } } I am having one drl file : Sample.drl which contains rule and IntermediateData is simple pojo. But after running this I am getting following error: Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'drools:kbase'. Can anyone help me with this issue? Thanks in advance This e-mail and any files transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any unauthorised review, use, disclosure, dissemination, forwarding, printing or copying of this email or any action taken in reliance on this e-mail is strictly prohibited and may be unlawful.

13 years, 4 months

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Do we have an user interface to declare enumerations in Guvnor

by Prasad

In guvnor, we can define enumeration using the syntax given. Ex: 'Vehicle.engineType' : ['Petrol', 'Diesel'] Is there a User Interface through which we can manage this list, so that a business user can just add to the list and not just type in the syntax given. -- View this message in context: http://drools.46999.n3.nabble.com/Do-we-have-an-user-interface-to-declare... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 4 months

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Drools Ruleflow deadlock issue[thread]

by dhinesh kumar

Hi I am getting the below error while creating the ksession.startProcess() instance in multithread. i.e. two thread calling the ksession.startprocess() with the ruleflow as based on initial testing i identified due to delete or update sql operation the below is appearing. Please let me know how to solve this issue ERROR LOG: Hibernate: delete from ProcessInstanceInfo where InstanceId=? and OPTLOCK=? Hibernate: delete from ProcessInstanceInfo where InstanceId=? and OPTLOCK=? 2011/07/04 11:20:06.475{UTC} [JDBCExceptionReporter : JDBCExceptionReporter.java: logExceptions: 100] [RMI TCP Connection(6)-10.50.53.32]: WARN: : SQL Error: 60, SQLState: 61000 2011/07/04 11:20:06.475{UTC} [JDBCExceptionReporter : JDBCExceptionReporter.java: logExceptions: 101] [RMI TCP Connection(6)-10.50.53.32]: ERROR: : ORA-00060: deadlock detected while waiting for resource 2011/07/04 11:20:06.475{UTC} [AbstractFlushingEventListener : AbstractFlushingEventListener.java: performExecutions: 324] [RMI TCP Connection(6)-10.50.53.32]: ERROR: : Could not synchronize database state with session org.hibernate.exception.LockAcquisitionException: could not delete: [org.drools.persistence.processinstance.ProcessInstanceInfo#8130] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:112)...... Regards Dhinesh Kumar V

13 years, 4 months

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Can a ruleflow be executed with a stateless session

by Wishing Carebear

13 years, 4 months

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How to update the working memory of a nested object attribute

by Wishing Carebear

Hi, My rules update the nested object attributes :eligibilityScore which is used in another rule downstream. Only the Client object is sent as fact, the nested object is derived using the from keyword (list of services) rule "Rule 8 EligibilityRating" agenda-group "EligibilityRating" no-loop true salience 5 //dialect "mvel" when $client : Client(type == "Preferred") $policy : Service(productType == "Vehicle Insurance") from $client.service then System.out.println(" Rule 8 ER = type == preferred:"+ $policy.getId() + ": -50"); int eScore = $policy.getEligibilityScore() - 50; * $policy.setEligibilityScore(eScore);* // how to let the downstream rule know that this atribute value is updated without letting this current rule go into infinite loop end Any suggestion is greatly appreciated

13 years, 4 months

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Guvnor 5.2.0-Final in Tomcat 6.0.32 fail to compile rules

by pamerida

Hi everyone, I am trying to create some rules with Guvnor guided editor but when I try to validate the rule it gives me a error message like this: "Unable to wire compiled classes, probably related to compilation failures:[Error: unable to resolve method using strict-mode: java.lang.Object.dateTimePeriod()] [Near : {... DTM[0].dateTimePeriod.dateOrTimeOrPer ....}] ^ [Line: 1, Column: 8" I have tried to turn off the strict mode by modifying the drools.packagebuilder.conf putting false in this property, but nothing seems to work drools.dialect.mvel.strict = false Thanks so much for your help... :) -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-2-0-Final-in-Tomcat-6-0-32-fai... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 4 months

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Implementation of not conditional expression

by jkrupka

How is the not conditional expression implemented? I am using it as a gate expression - I can't remember if that's the correct technical term or not, basically I'm using that expression to prevent the rules engine from having to evaluate additional expressions on the same rule which I know to be somewhat expensive and potentially frequently evaluated and added to the agenda, but only infrequently executed (due to highly dynamic facts). In the testing I have done, it seems to work well, but I'm not sure if there's a certain number of facts where the not CE calculation will outweigh the thing it's preventing. Is the not CE something that's optimized, or does the rules engine have to look through all the facts of that type to determine if the not CE is true? In my case there could be 10's of thousands of the fact on which I have the not CE. -- View this message in context: http://drools.46999.n3.nabble.com/Implementation-of-not-conditional-expre... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 4 months

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get inserted facts

by Ruault Gaetan

Hi, I use drools in stateless Session like this : session.execute( my_facts_list) ; and i have many rules like this when Type1(filter1 =1) Then Insert( new Fact()) ; Could you explain how it's possible to retrieve my new facts in java code ? Thanks. Gaetan

13 years, 4 months

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Re: [rules-users] Drools - Guvnor problem

by _bart

If I remove /id equals to $id / in the WHEN part, I can set the id in the THEN part. But then the use case getOneObjectById does not work. -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Guvnor-problem-tp3142574p3144190... Sent from the Drools: User forum mailing list archive at Nabble.com.

13 years, 4 months

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rules-users July 2011