[rules-users] question on adding manual workitem within flow editor
Hi, I'm a newbie of Drools and I just met a problem when learning Drools Flow according to Drools online documents. I create a workitem, Notification, exactly according to Chapter 8 in Drools Flow Doc. I create MyWorkDefinitions.conf and drools.rulebase.conf, and then put them in classpath. Also, I create one image to be used by the item. However, this new workitem is not found in RuleFlow Editor. I'm not sure if something else is needed. Can you guys please guide me to adding new workitem and dragging/drawing it in RuleFlow Editor? FYI. Though the RuleFlow editor cannot work with the new workitem, the XML style works. I mean, I could manually change the XML of .rf file to use the new workitem. The work environment is JDK5, Drools5, Eclipse 3.4.5 and GEF 3.5. The two conf files are also attached. drools.rulebase.conf MyWorkDefinitions.conf Thanks, Paul drools.rulebase.conf Description: drools.rulebase.conf MyWorkDefinitions.conf Description: MyWorkDefinitions.conf ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] question on adding manual workitem within flow editor
You need to make sure that the folder that contains your .conf files is marked as a Source Folder within Eclipse - hopefully it should then work OK. Alan Tessella plc 26 The Quadrant, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YS E: alan.gai...@tessella.com, T: +44 (0)1235 11, F: +44 (0)1235 553301 www.tessella.comRegistered in England No. 1466429 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. Pang, Yonghua yp...@statestreet.com Sent by: rules-users-boun...@lists.jboss.org 27/07/2009 08:15 Please respond to Rules Users List rules-users@lists.jboss.org To rules-users@lists.jboss.org cc Subject [rules-users] question on adding manual workitem within flow editor Hi, I’m a newbie of Drools and I just met a problem when learning Drools Flow according to Drools online documents. I create a workitem, Notification, exactly according to Chapter 8 in Drools Flow Doc. I create MyWorkDefinitions.conf and drools.rulebase.conf, and then put them in classpath. Also, I create one image to be used by the item. However, this new workitem is not found in RuleFlow Editor. I’m not sure if something else is needed. Can you guys please guide me to adding new workitem and dragging/drawing it in RuleFlow Editor? FYI. Though the RuleFlow editor cannot work with the new workitem, the XML style works. I mean, I could manually change the XML of .rf file to use the new workitem. The work environment is JDK5, Drools5, Eclipse 3.4.5 and GEF 3.5. The two conf files are also attached. drools.rulebase.conf MyWorkDefinitions.conf Thanks, Paul___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users drools.rulebase.conf Description: Binary data MyWorkDefinitions.conf Description: Binary data ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] question on adding manual workitem within floweditor
Thanks for your quick response but actually I’ve set that folder as src folder to ensure the they are in classpath at runtime. Paul From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of alan.gai...@tessella.com Sent: Monday, July 27, 2009 4:19 PM To: Rules Users List Subject: Re: [rules-users] question on adding manual workitem within floweditor You need to make sure that the folder that contains your .conf files is marked as a Source Folder within Eclipse - hopefully it should then work OK. Alan Tessella plc 26 The Quadrant, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YS E: alan.gai...@tessella.com, T: +44 (0)1235 11, F: +44 (0)1235 553301 www.tessella.comRegistered in England No. 1466429 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. Pang, Yonghua yp...@statestreet.com Sent by: rules-users-boun...@lists.jboss.org 27/07/2009 08:15 Please respond to Rules Users List rules-users@lists.jboss.org To rules-users@lists.jboss.org cc Subject [rules-users] question on adding manual workitem within flow editor Hi, I’m a newbie of Drools and I just met a problem when learning Drools Flow according to Drools online documents. I create a workitem, Notification, exactly according to Chapter 8 in Drools Flow Doc. I create MyWorkDefinitions.conf and drools.rulebase.conf, and then put them in classpath. Also, I create one image to be used by the item. However, this new workitem is not found in RuleFlow Editor. I’m not sure if something else is needed. Can you guys please guide me to adding new workitem and dragging/drawing it in RuleFlow Editor? FYI. Though the RuleFlow editor cannot work with the new workitem, the XML style works. I mean, I could manually change the XML of .rf file to use the new workitem. The work environment is JDK5, Drools5, Eclipse 3.4.5 and GEF 3.5. The two conf files are also attached. drools.rulebase.conf MyWorkDefinitions.conf Thanks, Paul___ 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] question on adding manual workitem within floweditor
Paul, I don't know if the directory structure is significant, but I've attached a screenshot of how the files are configured within my project - with this structure, the work items appear in the RuleFlow editor. (I'm using Eclipse 3.5, but I'm pretty sure this should still work with earlier versions.) Hope this helps, Alan Tessella plc 26 The Quadrant, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YS E: alan.gai...@tessella.com, T: +44 (0)1235 11, F: +44 (0)1235 553301 www.tessella.comRegistered in England No. 1466429 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. Pang, Yonghua yp...@statestreet.com Sent by: rules-users-boun...@lists.jboss.org 27/07/2009 09:41 Please respond to Rules Users List rules-users@lists.jboss.org To Rules Users List rules-users@lists.jboss.org cc Subject Re: [rules-users] question on adding manual workitem within floweditor Thanks for your quick response but actually I’ve set that folder as src folder to ensure the they are in classpath at runtime. Paul From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of alan.gai...@tessella.com Sent: Monday, July 27, 2009 4:19 PM To: Rules Users List Subject: Re: [rules-users] question on adding manual workitem within floweditor You need to make sure that the folder that contains your .conf files is marked as a Source Folder within Eclipse - hopefully it should then work OK. Alan Tessella plc 26 The Quadrant, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YS E: alan.gai...@tessella.com, T: +44 (0)1235 11, F: +44 (0)1235 553301 www.tessella.comRegistered in England No. 1466429 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. Pang, Yonghua yp...@statestreet.com Sent by: rules-users-boun...@lists.jboss.org 27/07/2009 08:15 Please respond to Rules Users List rules-users@lists.jboss.org To rules-users@lists.jboss.org cc Subject [rules-users] question on adding manual workitem within flow editor Hi, I’m a newbie of Drools and I just met a problem when learning Drools Flow according to Drools online documents. I create a workitem, Notification, exactly according to Chapter 8 in Drools Flow Doc. I create MyWorkDefinitions.conf and drools.rulebase.conf, and then put them in classpath. Also, I create one image to be used by the item. However, this new workitem is not found in RuleFlow Editor. I’m not sure if something else is needed. Can you guys please guide me to adding new workitem and dragging/drawing it in RuleFlow Editor? FYI. Though the RuleFlow editor cannot work with the new workitem, the XML style works. I mean, I could manually change the XML of .rf file to use the new workitem. The work environment is JDK5, Drools5, Eclipse 3.4.5 and GEF 3.5. The two conf files are also attached. drools.rulebase.conf MyWorkDefinitions.conf Thanks, Paul___ 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 image/gif___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] question on adding manual workitemwithin floweditor
Hi Alan, Thanks so much. It works! By mistake I put my .conf files directly in src folder rather than in META-INF. I the correct folder structure is a must. Regards, Paul From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of alan.gai...@tessella.com Sent: Monday, July 27, 2009 4:49 PM To: Rules Users List Subject: Re: [rules-users] question on adding manual workitemwithin floweditor Paul, I don't know if the directory structure is significant, but I've attached a screenshot of how the files are configured within my project - with this structure, the work items appear in the RuleFlow editor. (I'm using Eclipse 3.5, but I'm pretty sure this should still work with earlier versions.) Hope this helps, Alan Tessella plc 26 The Quadrant, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YS E: alan.gai...@tessella.com, T: +44 (0)1235 11, F: +44 (0)1235 553301 www.tessella.comRegistered in England No. 1466429 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. Pang, Yonghua yp...@statestreet.com Sent by: rules-users-boun...@lists.jboss.org 27/07/2009 09:41 Please respond to Rules Users List rules-users@lists.jboss.org To Rules Users List rules-users@lists.jboss.org cc Subject Re: [rules-users] question on adding manual workitem withinfloweditor Thanks for your quick response but actually I’ve set that folder as src folder to ensure the they are in classpath at runtime. Paul From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of alan.gai...@tessella.com Sent: Monday, July 27, 2009 4:19 PM To: Rules Users List Subject: Re: [rules-users] question on adding manual workitem within floweditor You need to make sure that the folder that contains your .conf files is marked as a Source Folder within Eclipse - hopefully it should then work OK. Alan Tessella plc 26 The Quadrant, Abingdon Science Park, Abingdon, Oxfordshire, OX14 3YS E: alan.gai...@tessella.com, T: +44 (0)1235 11, F: +44 (0)1235 553301 www.tessella.comRegistered in England No. 1466429 This message is commercial in confidence and may be privileged. It is intended for the addressee(s) only. Access to this message by anyone else is unauthorized and strictly prohibited. If you have received this message in error, please inform the sender immediately. Please note that messages sent or received by the Tessella e-mail system may be monitored and stored in an information retrieval system. Pang, Yonghua yp...@statestreet.com Sent by: rules-users-boun...@lists.jboss.org 27/07/2009 08:15 Please respond to Rules Users List rules-users@lists.jboss.org To rules-users@lists.jboss.org cc Subject [rules-users] question on adding manual workitem within flow editor Hi, I’m a newbie of Drools and I just met a problem when learning Drools Flow according to Drools online documents. I create a workitem, Notification, exactly according to Chapter 8 in Drools Flow Doc. I create MyWorkDefinitions.conf and drools.rulebase.conf, and then put them in classpath. Also, I create one image to be used by the item. However, this new workitem is not found in RuleFlow Editor. I’m not sure if something else is needed. Can you guys please guide me to adding new workitem and dragging/drawing it in RuleFlow Editor? FYI. Though the RuleFlow editor cannot work with the new workitem, the XML style works. I mean, I could manually change the XML of .rf file to use the new workitem. The work environment is JDK5, Drools5, Eclipse 3.4.5 and GEF 3.5. The two conf files are also attached. drools.rulebase.conf MyWorkDefinitions.conf Thanks, Paul___ 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 image001.gif___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problem when using multiple rule files (Drools 5)
Could it be that the fact where the NPE happens during its insert contains a field of some wrapper type (e.g.)Integer that's null and needs to be converted to a simple type (e.g. int)? But the same NPE should happen when you insert the same fact with rules coming from a single file - but you'll know whether you have changed the facts. -W On Sat, Jul 25, 2009 at 5:33 PM, Olaf Raether o.raet...@epro.de wrote: Mmmh, i still get an NPE but from a different function within ClassFieldReader.java with the 4.07 Api calls it was at org.drools.base.ClassFieldReader.isNullValue(ClassFieldReader.java:183) now its java.lang.NullPointerException at org.drools.base.ClassFieldReader.getIndex(ClassFieldReader.java:78) at org.drools.util.LeftTupleIndexHashTable.init(LeftTupleIndexHashTable.java:48) at org.drools.util.LeftTupleIndexHashTable.init(LeftTupleIndexHashTable.java:35) at org.drools.common.DoubleBetaConstraints.createBetaMemory(DoubleBetaConstraints.java:231) at org.drools.reteoo.BetaNode.createMemory(BetaNode.java:340) . i have no idea how to solve this at the moment. -- View this message in context: http://www.nabble.com/Problem-when-using-multiple-rule-files-%28Drools-5%29-tp24623347p24658903.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 ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Drools Guvnor Remote API
Does anyone know if there is a Remoting API in Guvnor? I see mention of it in some wiki pages, and in the web.xml in the Guvnor source. I'm trying to see if I can remotely trigger a build for a specific package, with a selector for the build, then create a snapshot for the same package. If anyone has any information about the API please let me know. Thanks, Steve Ronderos___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools Guvnor Remote API
Steve, I know there has been talk of a remoting API, but I am not sure where it is at. JackRabbit has a RMI implementation that I use as part of my build procedure to keep guvnor models in sync with the object model. You have to export the repository as an RMI object, then connect to it like so ClientRepositoryFactory factory = new ClientRepositoryFactory(); Repository repository = factory.getRepository(rmiURL); Session session = repository.login(new SimpleCredentials(username, password.toCharArray())); rulesRepository = new RulesRepository(session); dave 2009/7/27 Steve Ronderos steve.ronde...@ni.com Does anyone know if there is a Remoting API in Guvnor? I see mention of it in some wiki pages, and in the web.xml in the Guvnor source. I'm trying to see if I can remotely trigger a build for a specific package, with a selector for the build, then create a snapshot for the same package. If anyone has any information about the API please let me know. Thanks, Steve Ronderos ___ 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] Integrating Drools5.0 into J2EE APP
Hi, Can somebody describe in a high level how the Drools components ( Guvnor,Expert, etc) are integrated into J2EE app. I am looking for these items as part of Drools deployment configuration 1) How are rules saved ( File system or DB ) 2) How is rule versioning enabled ( with Subversion ) 3) Rules and RuleSet granularity . How many rules should go in one DRL. 4) Facts: Are facts defined as POJOs and uploaded to Drools or Declarative FACTs are defined in Drools Guvnor Any links over the web will be great too. thanks Sam ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Integrating Drools5.0 into J2EE APP
2009/7/27 Sumant Kumar amul...@yahoo.com: Hi, Can somebody describe in a high level how the Drools components ( Guvnor,Expert, etc) are integrated into J2EE app. I am looking for these items as part of Drools deployment configuration 1) How are rules saved ( File system or DB ) In guvnor (JCR) 2) How is rule versioning enabled ( with Subversion ) In guvnor (JCR) 3) Rules and RuleSet granularity . How many rules should go in one DRL. It depends on your business model 4) Facts: Are facts defined as POJOs and uploaded to Drools or Declarative FACTs are defined in Drools Guvnor In guvnor (JCR) Any links over the web will be great too. thanks Sam ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users -- - http://salaboy.wordpress.com - 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] Using eval in LHS
See the attached project. You can run it using maven with this command: mvn package exec:java -Dexec.mainClass=com.sample.DroolsTest There are three basic rules: MakeCollision: Detect that a collision has happened MatchCollision: Match vehicles to collisions IdentifyLargeCollision: Find collisions that are large rule MakeCollision salience 10 when s : Sighting( collision == null ) not Collision( direction == s.direction, position == s.position, lane == s.lane ) then Collision c = new Collision( s.direction, s.position, s.lane ); c.getSightings().add( s ); s.setCollision( c ); System.out.println(Creating + c); update( s ); insert( c ); end rule MatchCollision salience 10 when s : Sighting( collision == null ) c : Collision( direction == s.direction, position == s.position, lane == s.lane ) then c.getSightings().add( s ); s.setCollision( c ); System.out.println(Matching + s); update( s ); update( c ); end rule IdentifyLargeCollision salience 5 when num : Number ( intValue 1 ) from accumulate ( Collision( sightings.size 2 ), init( int count = 0; ), action( count++; ), reverse( count--; ), result( count ) ); then System.out.println(Found + num); end --- On Fri, 7/24/09, nash.8...@gmail.com nash.8...@gmail.com wrote: From: nash.8...@gmail.com nash.8...@gmail.com Subject: Re: [rules-users] Using eval in LHS To: Rules Users List rules-users@lists.jboss.org Date: Friday, July 24, 2009, 2:16 PM Thanks Greg. The reason I chose HashMap is that an accident is said to occur if and only if more than 1 vehicle contains four consecutive position report as same. So in my hashmap key is vehicle id and value is the no. Of times same position report received... Can you suggest me a way to 1. Collect all vehicles stopped at some point and the occurance of that event is reported more than thrice 2. Report accident if there are more than one vehicle found in step 1 ---Priya -original message- Subject: Re: [rules-users] Using eval in LHS From: Greg Barton greg_bar...@yahoo.com Date: 24/07/2009 10:36 pm Try this: rule Create Collision Location salience 90 no-loop true when vehLoc : VehicleLocation() not CollisionLocation(xway == vehLoc.xway, pos == vehLoc.pos, dir == vehLoc.dir, lane == vehLoc.lane) then CollisionLocation collisionLoc = new CollisionLocation(vehLoc.getXway(), vehLoc.getPos(), vehLoc.getDir(), vehLoc.getLane()); insert(collisionLoc); end rule Collect Collided Vehicles salience 90 no-loop true when vehLoc : VehicleLocation() $collisionLoc : CollisionLocation(xway == vehLoc.xway, pos == vehLoc.pos, dir == vehLoc.dir, lane == vehLoc.lane) then collisionLoc.getVehicleLocations().add(vehLoc); update(collisionLoc); end And now, the rule that detects more than three coinciding vehicle locations is simple: rule Detect Too Many when CollisionLocation(vehicleLocations.size 2) then ...foo... end And, if you want to make the execution a bit more efficient, put a reference in VehicleLocation to it's associated CollisionLocation. That way you can have vehLoc : VehicleLocation(collisionLocation == null) to reduce partial matches. --- On Fri, 7/24/09, PriyaSha nash.8...@gmail.com wrote: From: PriyaSha nash.8...@gmail.com Subject: [rules-users] Using eval in LHS To: rules-users@lists.jboss.org Date: Friday, July 24, 2009, 10:45 AM Input: 0,0,107,32,0,0,0,10,53320,-1,-1,-1,-1,-1,-1 0,0,107,32,0,0,0,10,53320,-1,-1,-1,-1,-1,-1 0,0,107,32,0,0,0,10,53320,-1,-1,-1,-1,-1,-1 0,0,107,32,0,0,0,10,53320,-1,-1,-1,-1,-1,-1 0,0,109,20,0,0,0,19,100644,-1,-1,-1,-1,-1,-1 0,0,109,20,0,0,0,19,100644,-1,-1,-1,-1,-1,-1 0,0,106,28,0,0,0,26,137745,-1,-1,-1,-1,-1,-1 0,0,108,32,0,0,0,67,354281,-1,-1,-1,-1,-1,-1 0,0,105,30,0,0,1,94,501089,-1,-1,-1,-1,-1,-1 Problem: Should find vehicles with same data (if it occurs more than thrice). Though eval in rule 'Detect Accident' results in true, consequence is not fired. Output: Added Not Found -- 107---2 test---2107 Not Found -- 107---3 test---3107 Not Found -- 107---4 test---4107 no of veh : 1 no of veh : 1 no of veh : 1 Not Found -- 109---5 test---1109 Not Found -- 109---6 test---2109 Not Found -- 106---7 Please find the DRL below. package com.hp.hpl.CHAOS.LR; #
Re: [rules-users] Run Drool Application From Command Prompt
Hi I still have not got any solution of my problem that I posted previously. I have included all required jar files and set proper class path .. Please do help ? problem: I am trying to integrate Drool with ofbiz and run application from command prompt. In one way I have integrated it properly and I am able to run it successfully. Code : Which I was using initially KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); or PackageBuilderConfiguration cfg = new PackageBuilderConfiguration(); KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); Exception I got : org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java :org.drools.rule.builder.dialect.java.JavaDialectConfiguration' at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:274) at org.drools.compiler.PackageBuilderConfiguration.buildDialectConfigurationMap(PackageBuilderConfiguration.java:259) at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:176) at org.drools.compiler.PackageBuilderConfiguration.init(PackageBuilderConfiguration.java:153) at org.drools.compiler.PackageBuilder.init(PackageBuilder.java:242) . . . Caused by: java.lang.NullPointerException at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.setCompiler(JavaDialectConfiguration.java:92) at org.drools.rule.builder.dialect.java.JavaDialectConfiguration.init(JavaDialectConfiguration.java:55) at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:270 Problem I found : In the class JavaDialectConfiguration in jar file drools-compiler.jar there is a method named setCompliler, in this method Null Pointer Exception was coming. Solution I provided : In my application I created my custom class CustomJavaDialectConfiguration by extending to class JavaDialectConfiguration, In this class I overrided the method setCompiler. My method was exactly same as that of method setCompiler in JavaDialectConfiguration . To call my dialect class I also overrided the method addDialect of PackageBuilderConfiguration class . For that I created class CustomPackageBuilderConfiguration by extending to PackageBuilderConfiguration. after that I wrote the code: PackageBuilderConfiguration cfg = new CustomPackageBuilderConfiguration(); KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(cfg); Now application is running perfectly fine from both eclipse and command prompt without any exception. I want to know as my overrided method setCompiler was exactly same then why I had to override method, and In original code (ie in drools-compiler.jar file) why it was giving exception ??? Was that due to class lader or something else ?? Please do help in this regard Thanks Regards: Pankaj Jain | LT infotech |Navi Mumbai Mobile: +91 9920218945 Email : pankaj.j...@lntinfotech.com www.Lntinfotech.com Whatever the mind of man can conceive believe, it can achieve. Larsen Toubro Infotech Ltd. www.Lntinfotech.com This Document is classified as: LT Infotech Proprietary LT Infotech Confidential LT Infotech Internal Use Only LT Infotech General Business This Email may contain confidential or privileged information for the intended recipient (s) If you are not the intended recipient, please do not use or disseminate the information, notify the sender and delete it from your system. _ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
