[rules-users] Integrate drools into existing app
I have been asked to integrate Drools into an existing webapp. We are thinking about using Spring (already implemented). I have read in the Drools 4 documentation, the RuleAgent should be kept in a Singleton or JNDI or similar. i.e. from 4.0 docs IMPORTANT: You should only have one instance of the RuleAgent per rulebase you are using. This means you should (for example) keep the agent in a singleton, JNDI (or similar). In practice most people are using frameworks like Seam or Spring - in which case they will take care of managing this for you (in fact in Seam - it is already integrated - you can inject rulebases into Seam components). Note that the RuleBase can be used multiple times by multiple threads if needed (no need to have multiple copies of it). I have upgraded to Drools 5.0. Is the Singleton still required in 5.0 ? I cannot see any mention of it there. Has any had any experience with Drools 5.0 and Spring? Any advice? -- Regards, Ian Spence ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Not able to build documentation from version 5.0 source
Hi,
I am new to Drools and I am not able to build the documentation from the
source code.
The versions of the various software I am using are as follows:
- Drools: 5.0.1.26597.FINAL.
- Maven: 2.1.0
- OS: Mac OS X 10.5.7 (on an Intel-Mac)
- Java: 1.5.0_16
The error messages I see when trying to build the documentation are as
follows:
~/Developmen.../drools-5.0-src\mvn -e -Ddocumentation clean package
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO]
[ERROR] BUILD FAILURE
[INFO]
[INFO] The projects in the reactor contain a cyclic reference: Edge between
'Vertex{label='org.drools:docbook-style-drools'}' and
'Vertex{label='org.drools:docbook-style-drools'}' introduces to cycle in the
graph org.drools:docbook-style-drools -- org.drools:docbook-style-drools
[INFO]
[INFO] Trace
org.apache.maven.BuildFailureException: The projects in the reactor contain a
cyclic reference: Edge between
'Vertex{label='org.drools:docbook-style-drools'}' and
'Vertex{label='org.drools:docbook-style-drools'}' introduces to cycle in the
graph org.drools:docbook-style-drools -- org.drools:docbook-style-drools
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:323)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:137)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:356)
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 org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: hidden.org.codehaus.plexus.util.dag.CycleDetectedException: Edge
between 'Vertex{label='org.drools:docbook-style-drools'}' and
'Vertex{label='org.drools:docbook-style-drools'}' introduces to cycle in the
graph org.drools:docbook-style-drools -- org.drools:docbook-style-drools
at hidden.org.codehaus.plexus.util.dag.DAG.addEdge(DAG.java:127)
at hidden.org.codehaus.plexus.util.dag.DAG.addEdge(DAG.java:107)
at
org.apache.maven.project.ProjectSorter.addEdgeWithParentCheck(ProjectSorter.java:351)
at org.apache.maven.project.ProjectSorter.init(ProjectSorter.java:161)
at org.apache.maven.execution.ReactorManager.init(ReactorManager.java:99)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:316)
... 10 more
[INFO]
[INFO] Total time: 2 seconds
[INFO] Finished at: Tue May 19 17:48:42 EDT 2009
[INFO] Final Memory: 9M/247M
[INFO]
~/Developmen.../drools-5.0-src\
Any pointer is appreciated. Thanks!
regards,
Daniel
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Re: [rules-users] Class loading for facts used in rules
You are confusing several issues here. I take it that the ClassCastException is an error that occurs while you insert facts. At that time, all rule compiling has been done and the rulebase has been built. A ClassCastException is not a problem of some class or other being loaded (by Java's own class loader); it happens when you assign an object reference to a variable, and at that time all involved classes have been loaded. Most importantly, rules are never called. When you insert a fact, all Left Hand Side patterns where the fact's type (or supertype) is referenced are evaluated against this fact. It's possible that this error occurs then, for instance, if you use the Conditional Element or. Or it could happen in a function called from there. We'd have to see the rules for a better guess. -W On Thu, May 21, 2009 at 10:29 AM, seemamani seemam...@gmail.com wrote: I have a rule in which I use objects of a class X. I compiled and packaged this rule using BRMS for which I uploaded a jar containing class X as the model. I use a rule agent to build a rulebase from this package. Now, when I pass the facts of type X to the rule engine, I get a ClassCastException saying that X is incompatible with Y. Y is a subclass of X, but the problem is that a subclass object cannot be assigned to a superclass type. That means at some point, Y is getting loaded instead of X. I'm trying to identify at which point this is happening. In the above case, when does the class loading happen for the types used in a rule? Is it at step 1, 2 or 3 ? 1. When the rule is compiled using MVEL? 2. When the rule is called the first time? 3. When the rulebase is built from the package? Thanks, Seema -- View this message in context: http://www.nabble.com/Class-loading-for-facts-used-in-rules-tp23649584p23649584.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] variable binding without condition in Decision table
I have a decision table where I need to bind a variable to use in the action. The problem is that the binding does not happen unless I apply a condition. What I want in the resulting rule is this: $serviceContract: CreditServiceContract ( ) This is what I want but does not work. The binding does not happen so the rule does not compile. This works but I hate to add an arbitrary condition just to accomplish a binding. I'm sure I am just missing something. Can someone point that out? Thanks Kent Symanzik image/gifimage/gif___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
RE: [rules-users] variable binding without condition in Decision table
Nope, that's how it works. I wrote it up as a defect and it got closed because no one seemed to think it was an issue. So, since I don't have the time available to be a contributor, I decided not to complain. From: rules-users-boun...@lists.jboss.org [mailto:rules-users-boun...@lists.jboss.org] On Behalf Of k...@chryslerfinancial.com Sent: Thursday, May 21, 2009 9:05 AM To: Rules Users List Subject: [rules-users] variable binding without condition in Decision table I have a decision table where I need to bind a variable to use in the action. The problem is that the binding does not happen unless I apply a condition. What I want in the resulting rule is this: $serviceContract: CreditServiceContract ( ) This is what I want but does not work. The binding does not happen so the rule does not compile. This works but I hate to add an arbitrary condition just to accomplish a binding. I'm sure I am just missing something. Can someone point that out? Thanks Kent Symanzik image001.gifimage002.gif___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problems with ruleflow
There is an all too easily overlooked sentence in the Drools Flow User Guide in Section 3.2, whereas the code samples don't feature this call at all. -W 2009/5/21 David Sinclair dsincl...@chariotsolutions.com You are missing the kession.fireAllRules() after the ksession.startProcess(bmi.testflow, parameters);in FeverRunner On Thu, May 21, 2009 at 7:16 AM, Femke De Backere femm...@gmail.comwrote: The strange thing is, if I embed the ruleflowgroup in another project, it works perfectly. Then I removed the other components systematically and the project stops working... I really don't get this. Please help! Femke Op 21-mei-09, om 12:44 heeft Femke De Backere het volgende geschreven: Hi, I have a problem with an easy Rule flow project (source code included in this mail). The only thing that should happen is the execution of a rule flowgroup, but my application ends before executing the group... Does anybody see the problems? I tried every possible adaptation and based this problem on a similar, working feverapplication... But is still doesn't work and I really can't find the problem. Thx, Femke src ___ 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problems with ruleflow
Thx, It is strange, because I didn't use it in the other program. But thanks anyway!!! Femke Op 21-mei-09, om 15:23 heeft David Sinclair het volgende geschreven: You are missing the kession.fireAllRules() after the ksession.startProcess(bmi.testflow, parameters);in FeverRunner On Thu, May 21, 2009 at 7:16 AM, Femke De Backere femm...@gmail.com wrote: The strange thing is, if I embed the ruleflowgroup in another project, it works perfectly. Then I removed the other components systematically and the project stops working... I really don't get this. Please help! Femke Op 21-mei-09, om 12:44 heeft Femke De Backere het volgende geschreven: Hi, I have a problem with an easy Rule flow project (source code included in this mail). The only thing that should happen is the execution of a rule flowgroup, but my application ends before executing the group... Does anybody see the problems? I tried every possible adaptation and based this problem on a similar, working feverapplication... But is still doesn't work and I really can't find the problem. Thx, Femke src ___ 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 mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] can drools support complex rules (resetting of Accumulate?)
Hi, Temporal Reasoning with Accumulate - (like 3- rule Customer login from more than 5 locations in the last one month) What if I want to reset my count for accumulate within the time specified sliding window.So that I can have the RHS triggered for every 10times the event occurs in the same window. For Example: when $customer : Customer( $id : id ) Number( intValue 10 ) from accumulate( CustomerLogin( loginStatus==Failed, customerId == $id,$cusId:customerId) over window:time( 30s ), count( $ cusId) ) then // do something as the customer had abnormal number of failed violations in last 30 secs. end Right now am doing something similar, but using a manual approach -of explicitly counting. Any Light on this? Regards Rishi -- Message: 1 Date: Tue, 19 May 2009 11:17:41 -0400 From: Edson Tirelli tire...@post.com Subject: Re: [rules-users] can drools support complex rules To: Rules Users List rules-users@lists.jboss.org Message-ID: e6dd5ba30905190817q33d15b9er5efee64bc74cd...@mail.gmail.com Content-Type: text/plain; charset=windows-1252 Your question is funny. First you ask if Drools is capable of managing complex rules and then you mention examples of extremely simple rules? :) Drools is FOL complete and so can represent any well formed First Order Logic expression. Anyway, I will use this message to advertise some of the temporal reasoning features that we have on Drools 5 for the benefit of anyone interested. There are several ways of authoring such rules, depending on how you model your problem domain. One possible way of doing them is: #1: rule If a customer login within 5 minutes from two different locations, mark the user invalid. when $l1 : CustomerLogin( ) $l2 : CustomerLogin( userId == l1.$id, location != $l1.id, timestamp after[0s, 5m] $l1.timestamp ) then // mark user as invalid end In the previous example I assumed both login objects would be in working memory, but you can easily query for the previous login in an external datasource, pulling the data from the previous login on-demand for the reasoning cycle. #2: rule If the customer location is not on a list of valid locations, mark the user invalid when $l : CustomerLogin( location not memberOf $validLocations ) then // mark the user invalid end In the above rule, I assume the valid locations list is a global list, but you can as easily model locations as being facts on your working memory or a service end point that you can call to validate the location. #3: rule Customer login from more than 5 locations in the last one month when $customer : Customer( $id : id ) $locations : Set( size 5 ) from accumulate( CustomerLogin( customerId == $id, $loc : location ) over window:time( 30d ), collectSet( $loc ) ) then // do something as the customer logged in from more than 5 locations in the last 30 days end In the previous rule I decided to use sliding windows, just to show how that feature can be used to simplify rules, but again, there are several ways of doing it. I strongly recommend you read Drools manual. http://www.jboss.org/drools/documentation.html Cheers, Edson 2009/5/19 Bhushan Bhangale bhushan_bhang...@kaleconsultants.com Hi, I recently came across Drools. I gone through the documentation and the examples provide are quite simple. I want to know if it can be really applied to complex real world problems. Take for example, If a customer login within 5 minutes from two different locations, mark the user invalid. How can I write the above rule in drools? I have the data when the user last logged in and the data of current login. You can say two objects. May be my understanding is wrong but looks like based on rule I have to pass all the required data. How can then at real time new rules can be added? For example, If the customer location is not on a list of valid locations, mark the user invalid. For the above rule I need to pass a list of valid locations as well. Now how about Customer login from more than 5 locations in the last one month? Thanks *Mr. Bhangale Bhushan* *Associate Manager* *Kale Consultants Ltd.* bhushan_bhang...@kaleconsultants.com tel: +91 (0)206 608 3777http://www.plaxo.com/click_to_call?lang=ensrc=jj_signatureTo=%2B9 1+%280%29206+608+3777email=bhushan_bhang...@kaleconsultants.com http://www.kaleconsultants.com Disclaimer: This email (including any attachments) is intended for the sole use of the recipient/s and may contain material that is CONFIDENTIAL. Any unauthorized disclosure / copying / distribution or forwarding of this message or part is STRICTLY PROHIBITED. If you have erroneously received this message, please delete it immediately and notify the sender. No liability is assumed for any errors
Re: [rules-users] can drools support complex rules (resetting of Accumulate?)
Well, it's definitely not forbidden to do a little computational work on the RHS, too. Bind the result to a variable: Number( $times : intValue 10 )... and, on the RHS, do for( int i = 1; i = $times % 10; i++ ) shout( alarm ); or whatever. -W On Thu, May 21, 2009 at 4:21 PM, hrishikesh.va...@wipro.com wrote: Hi, Temporal Reasoning with Accumulate - (like 3- rule Customer login from more than 5 locations in the last one month) What if I want to reset my count for accumulate within the time specified sliding window.So that I can have the RHS triggered for every 10times the event occurs in the same window. For Example: when $customer : Customer( $id : id ) Number( intValue 10 ) from accumulate( CustomerLogin( loginStatus==Failed, customerId == $id,$cusId:customerId) over window:time( 30s ), count( $ cusId) ) then // do something as the customer had abnormal number of failed violations in last 30 secs. end Right now am doing something similar, but using a manual approach -of explicitly counting. Any Light on this? Regards Rishi -- Message: 1 Date: Tue, 19 May 2009 11:17:41 -0400 From: Edson Tirelli tire...@post.com Subject: Re: [rules-users] can drools support complex rules To: Rules Users List rules-users@lists.jboss.org Message-ID: e6dd5ba30905190817q33d15b9er5efee64bc74cd...@mail.gmail.com Content-Type: text/plain; charset=windows-1252 Your question is funny. First you ask if Drools is capable of managing complex rules and then you mention examples of extremely simple rules? :) Drools is FOL complete and so can represent any well formed First Order Logic expression. Anyway, I will use this message to advertise some of the temporal reasoning features that we have on Drools 5 for the benefit of anyone interested. There are several ways of authoring such rules, depending on how you model your problem domain. One possible way of doing them is: #1: rule If a customer login within 5 minutes from two different locations, mark the user invalid. when $l1 : CustomerLogin( ) $l2 : CustomerLogin( userId == l1.$id, location != $l1.id, timestamp after[0s, 5m] $l1.timestamp ) then // mark user as invalid end In the previous example I assumed both login objects would be in working memory, but you can easily query for the previous login in an external datasource, pulling the data from the previous login on-demand for the reasoning cycle. #2: rule If the customer location is not on a list of valid locations, mark the user invalid when $l : CustomerLogin( location not memberOf $validLocations ) then // mark the user invalid end In the above rule, I assume the valid locations list is a global list, but you can as easily model locations as being facts on your working memory or a service end point that you can call to validate the location. #3: rule Customer login from more than 5 locations in the last one month when $customer : Customer( $id : id ) $locations : Set( size 5 ) from accumulate( CustomerLogin( customerId == $id, $loc : location ) over window:time( 30d ), collectSet( $loc ) ) then // do something as the customer logged in from more than 5 locations in the last 30 days end In the previous rule I decided to use sliding windows, just to show how that feature can be used to simplify rules, but again, there are several ways of doing it. I strongly recommend you read Drools manual. http://www.jboss.org/drools/documentation.html Cheers, Edson 2009/5/19 Bhushan Bhangale bhushan_bhang...@kaleconsultants.com Hi, I recently came across Drools. I gone through the documentation and the examples provide are quite simple. I want to know if it can be really applied to complex real world problems. Take for example, If a customer login within 5 minutes from two different locations, mark the user invalid. How can I write the above rule in drools? I have the data when the user last logged in and the data of current login. You can say two objects. May be my understanding is wrong but looks like based on rule I have to pass all the required data. How can then at real time new rules can be added? For example, If the customer location is not on a list of valid locations, mark the user invalid. For the above rule I need to pass a list of valid locations as well. Now how about Customer login from more than 5 locations in the last one month? Thanks *Mr. Bhangale Bhushan* *Associate Manager* *Kale Consultants Ltd.* bhushan_bhang...@kaleconsultants.com tel: +91 (0)206 608 3777http://www.plaxo.com/click_to_call?lang=ensrc=jj_signatureTo=%2B9
[rules-users] RuleBase.removeRule leads to NoClassDefFoundError
Hi, We're having a problem with runtime rule administration; i.e. using RuleBase.addRule and RuleBase.removeRule. We're using Drools 4.0.7 on Sun JDK 1.4.2_11 and inside Weblogic 8.1 sp 6. Typically we remove a few rules followed by adding a few rules. In some cases, we receive a NoClassDefFoundError. Stacktrace is provided in attached file. http://www.nabble.com/file/p23657476/stacktrace.txt stacktrace.txt The class referenced (i.e. the one not found) is the removed rule. Has anyone else seen this behaviour? This seems like such a basic error that we're wondering if we're doing something wrong here. We have been unable to find anything about this To make matters worse, this actually leads to a deadlock. This is because lock / unlock in version 4.0.7 is not encapsuled in a try / finally block in AbstractRuleBase.removeRule(), so whenever an error occurs, the lock is not released. I found a Jira issue regarding this, where this issue is addressed and apparently fixed in an earlier version: https://jira.jboss.org:8443/jira/browse/JBRULES-603 This fix has been rolled back, however, so this issue is present in version 4.0.7. We found a workaround for the deadlock by performing lock / unlock ourselves, since drools will not lock if it has been performed already. In addition, we encapsulate rulebase access with a read/write lock to ensure that whenever the rulebase is updated, no other operation towards it is performed. Regards, Steinar Haugen -- View this message in context: http://www.nabble.com/RuleBase.removeRule-leads-to-NoClassDefFoundError-tp23657476p23657476.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] [users-rules] Loading time ruleflow
Hi! I'm testing the loading time of the line: kbuilder.add(ResourceFactory.newClassPathResource(nodesflow.rf, DroolsTest.class), ResourceType.DRF ); for a rule flow file with 1 split node, 3 split nodes, 7 split nodes, ... But the results I already have are confusing: 1 split node 26071960,8 1 3 split nodes 1018762000 40, 85676594 times the time of 1 split node flow 7 split nodes 4974479,4 1,907968479 times the time of 1 split node flow Can anybody explain why the 3 split node rule flow file takes a lot longer than the 7 split rule flow file? Thx, Femke ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] can drools support complex rules (resetting of Accumulate?)
. I gone through the documentation and the examples provide are quite simple. I want to know if it can be really applied to complex real world problems. Take for example, If a customer login within 5 minutes from two different locations, mark the user invalid. How can I write the above rule in drools? I have the data when the user last logged in and the data of current login. You can say two objects. May be my understanding is wrong but looks like based on rule I have to pass all the required data. How can then at real time new rules can be added? For example, If the customer location is not on a list of valid locations, mark the user invalid. For the above rule I need to pass a list of valid locations as well. Now how about Customer login from more than 5 locations in the last one month? Thanks *Mr. Bhangale Bhushan* *Associate Manager* *Kale Consultants Ltd.* bhushan_bhang...@kaleconsultants.com tel: +91 (0)206 608 3777http://www.plaxo.com/click_to_call?lang=ensrc=jj_signatureTo=%2B9 1+%280%29206+608+3777email=bhushan_bhang...@kaleconsultants.comhttp:// www.plaxo.com/click_to_call?lang=ensrc=jj_signatureTo=%2B9%0A1+%280%29 206+608+3777email=bhushan_bhang...@kaleconsultants.com http://www.kaleconsultants.com Disclaimer: This email (including any attachments) is intended for the sole use of the recipient/s and may contain material that is CONFIDENTIAL. Any unauthorized disclosure / copying / distribution or forwarding of this message or part is STRICTLY PROHIBITED. If you have erroneously received this message, please delete it immediately and notify the sender. No liability is assumed for any errors and/or omissions in the contents of this message. Information in this message that does not relate to the official business of this Company shall be understood as neither given nor endorsed by it. If verification is required please request a hard-copy version. To know more about Kale Consultants, visit www.kaleconsultants.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 -- next part -- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20090519/4d4928 6d/attachment-0001.htmlhttp://lists.jboss.org/pipermail/rules-users/att achments/20090519/4d4928%0A6d/attachment-0001.html -- ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users End of rules-users Digest, Vol 30, Issue 56 *** Please do not print this email unless it is absolutely necessary. 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 -- next part -- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20090521/cd3adb ca/attachment-0001.html -- Message: 2 Date: Thu, 21 May 2009 10:42:34 -0700 (PDT) From: Steinar Haugen steinar.hau...@gmail.com Subject: [rules-users] RuleBase.removeRule leads to NoClassDefFoundError To: rules-users@lists.jboss.org Message-ID: 23657476.p...@talk.nabble.com Content-Type: text/plain; charset=us-ascii Hi, We're having a problem with runtime rule administration; i.e. using RuleBase.addRule and RuleBase.removeRule. We're using Drools 4.0.7 on Sun JDK 1.4.2_11 and inside Weblogic 8.1 sp 6. Typically we remove a few rules followed by adding a few rules. In some cases, we receive a NoClassDefFoundError. Stacktrace is provided in attached file. http://www.nabble.com/file/p23657476/stacktrace.txt stacktrace.txt The class referenced (i.e. the one not found) is the removed rule. Has anyone else seen this behaviour? This seems like such a basic error that we're wondering if we're doing something wrong here
[rules-users] Drools 5 Released
http://blog.athico.com/2009/05/drools-5-released.html The Drools team are pleased to announce the release of Drools 5.0 Final. Everyone's favourite Java Rule Engine with the delivery of version 5.0 gives genesis to the Business Logic integration Platform, which provides a unified and integrated platform for Rules, Workflow and Event Processing. It's been designed from the ground up so that each aspect is a first class citizen, with no compromises. Drools 5.0 is now split into 4 modules, the links below provide more information and screenshots for each module: Drools Guvnor Drools Expert Drools Fusion Drools Flow. Guvnor is our web based governance system, traditionally referred to in the rules world as a BRMS. We decided to move away from the term BRMS to something based on governance, as our long term emphasis is no longer rules specific. Expert is the traditional rules engine. Fusion is the event processing side, it's a play on data/sensor fusion terminology. Finally there is Flow which is our workflow module. The Drools 5.0 Release Notes http://downloads.jboss.com/drools/docs/5.0.1.26597.FINAL/drools-introduction/html/ch02.html#d0e29 Home Page http://www.jboss.org/drools Blog http://blog.athico.com/ Drools Boot Camp - San Francisco 1-7 of June http://blog.athico.com/2009/03/drools-boot-camp-san-francisco-june.html ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
