June 2010 - rules-users - Jboss List Archives

by Fnu Mahalakshmi

Hi guys, I am getting a really weird problem. I am using eclipse for working on my drools project and I have installed the plugin for drools using the update link specified on the site. It seemed to be working fine till yesterday. But now I do not even get the option of importing from my guvnor repository. The guvnor option seems to not be there anywhere. I tried reupdating using the link but that is fine. Is there something I am missing over here??? Please help! -M </pre> <hr size=1> Please consider the environment before printing this email. Visit our website at <a href="http://www.nyse.com">http://www.nyse.com</a> ***************************************************************************** Note: The information contained in this message and any attachment to it is privileged, confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to the message, and please delete it from your system. Thank you. NYSE Euronext. <pre>

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Re: [rules-users] rules-users Digest, Vol 43, Issue 60

by Nikhil S. Kulkarni

Hi, Thanks Thomas for Reply for Re: [rules-users] How to break the rules execution if one has been satisfied ?? My Question is like in Java as we have break statement so that we can terminate the loop, So if there are 1000 rules activated and Rule fired is Rule no 4 then How will I come out of this Immediately in order to save time of rules execution. Thanks & Regards, Nikhil S. Kulkarni -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of rules-users-request(a)lists.jboss.org Sent: Friday, June 11, 2010 5:16 PM To: rules-users(a)lists.jboss.org Subject: rules-users Digest, Vol 43, Issue 60 Send rules-users mailing list submissions to rules-users(a)lists.jboss.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.jboss.org/mailman/listinfo/rules-users or, via email, send a message with subject or body 'help' to rules-users-request(a)lists.jboss.org You can reach the person managing the list at rules-users-owner(a)lists.jboss.org When replying, please edit your Subject line so it is more specific than "Re: Contents of rules-users digest..." Today's Topics: 1. Fwd: [drools-user] Write Drools Books - Packt Publishing. (Mark Proctor) 2. How to break the rules execution if one has been satisfied ?? (Nikhil S. Kulkarni) 3. Re: How to break the rules execution if one has been satisfied ?? (Swindells, Thomas) ---------------------------------------------------------------------- Message: 1 Date: Fri, 11 Jun 2010 12:07:43 +0100 From: Mark Proctor <mproctor(a)codehaus.org> Subject: [rules-users] Fwd: [drools-user] Write Drools Books - Packt Publishing. To: Rules Users List <rules-users(a)lists.jboss.org>, Rules Dev List <rules-dev(a)lists.jboss.org> Message-ID: <4C1218FF.8000608(a)codehaus.org> Content-Type: text/plain; charset="iso-8859-1" -------- Original Message --------Kshipra Singh <kshipras(a)packtpub.com> Hello Everybody, I represent Packt Publishing, the publishers of computer related books. We are planning to expand our range of Drools books and are currently inviting Drools experts interested in writing books for Packt. We do not expect our authors to have any past writing experience. All that you need to write for Packt is an expert knowledge of your subject, a passion to share it with others and an ability to communicate clearly in English. So, if you love Drools and fancy writing a book, here's an opportunity for you! Send us your book ideas at author(a)packtpub.com. Even if you don't have a book idea and are simply interested in writing a book, we are keen to hear from you! More details about this opportunity are available at : http://authors.packtpub.com/content/packt-invites-drools-book-ideas-authors Thanks Kshipra Singh Author Relationship Manager Packt Publishing www.PacktPub.com <http://www.PacktPub.com> Skype: kshiprasingh15 Twitter: http://twitter.com/packtauthors Interested in becoming an author? Visit http://authors.packtpub.com for all the information you need about writing for Packt. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20100611/909f772... ------------------------------ Message: 2 Date: Fri, 11 Jun 2010 16:57:09 +0530 From: "Nikhil S. Kulkarni" <Nikhil.Kulkarni(a)mastek.com> Subject: [rules-users] How to break the rules execution if one has been satisfied ?? To: "rules-users(a)lists.jboss.org" <rules-users(a)lists.jboss.org> Message-ID: <697B15BDCE7BED458A324B1B4D09463D4CE6DBBF57(a)IND-MHP1MCL001.mastek.com> Content-Type: text/plain; charset="us-ascii" Hi, In rules, in a particular rule set, all the when's are executed. In technical terms, the activation is first created. For all the rules in a rule set the when condition is first evaluated and if the when condition is satisfied for any rule then the rule is marked as ready to fire. Once all the when part for all the rules are evaluated then all the ones that were marked for fire are fired. The performance issue that if there are some 1500 rows. Hence, when the rule is fired there are 1500 when conditions that are firstly checked. And only after this the then part is fired. There is no way to break the when checks on successful satisfaction of a particular rule when. Example: If I have say a group of 1000 rules as mentioned below Rule_1 Salience 1000 When Some_Conditions_1 Then Some_Actions_1 Rule_2 Salience 999 When Some_Conditions_2 Then Some_Actions_2 . . . Rule_1000 Salience 1 When Some_Conditions_1000 Then Some_Actions_1000 Let's assume that Some_conditions_2 = true Now even though I have an ordering using salience, the rule engine will still execute all the when conditions (Some_Conditions_1 .. Some_Conditions_1000) Is it possible for me to break this when evaluation even if one has been satisfied? Thanks & Regards, Nikhil S. Kulkarni MASTEK LTD. Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List. In the US, we're called MAJESCOMASTEK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. Mastek Limited does not accept any responsibility or liability for it. This e-mail and attachments (if any) transmitted with it are confidential and/or privileged and solely for the use of the intended person or entity to which it is addressed. Any review, re-transmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. This e-mail and its attachments have been scanned for the presence of computer viruses. It is the responsibility of the recipient to run the virus check on e-mails and attachments before opening them. If you have received this e-mail in error, kindly delete this e-mail from desktop and server. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20100611/2482cf2... ------------------------------ Message: 3 Date: Fri, 11 Jun 2010 12:46:01 +0100 From: "Swindells, Thomas" <TSwindells(a)nds.com> Subject: Re: [rules-users] How to break the rules execution if one has been satisfied ?? To: Rules Users List <rules-users(a)lists.jboss.org> Message-ID: <DAC86F5F3B84F14088F0DB16092558CA0855AE8E0A(a)UKMA1.UK.NDS.COM> Content-Type: text/plain; charset="us-ascii" You technical description isn't at all accurate. You need to read up on Rete Trees, I'm still a bit vague on them myself but a hopefully slightly more accurate description is as follows: When the rules are compiled each of their conditions is converted to a node on the graph. If rules share the same initial set of conditions then they will share those nodes in the tree. These nodes contain references to the data in the working memory that they match against. When an object is added or updated in working memory then the knowledge of this allows just the relevant nodes to be re-evaluated trickling down the tree. If a leaf node is reached with a particular set of Objects then this means that the rule can then be placed on the activation queue with that set of data. This Rete graph is designed to solve the problem you are describing which is why we have a rules engine rather than doing the naive procedural implementation of 'firing rules'. Of course if all your rules are disjoint but rely on the same set of Objects then there isn't any choice but to evaluate all the rules, after all they may all do different things and normally you want multiple rules to fire. How you write your rules can also have a massive impact on performance and the shape of the graph (which you can see in eclipse), are you worrying about this purely from a theoretical viewpoint or are you having a concrete performance problem? Hope this helps your understanding, Thomas From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Nikhil S. Kulkarni Sent: 11 June 2010 12:27 To: rules-users(a)lists.jboss.org Subject: [rules-users] How to break the rules execution if one has been satisfied ?? Hi, In rules, in a particular rule set, all the when's are executed. In technical terms, the activation is first created. For all the rules in a rule set the when condition is first evaluated and if the when condition is satisfied for any rule then the rule is marked as ready to fire. Once all the when part for all the rules are evaluated then all the ones that were marked for fire are fired. The performance issue that if there are some 1500 rows. Hence, when the rule is fired there are 1500 when conditions that are firstly checked. And only after this the then part is fired. There is no way to break the when checks on successful satisfaction of a particular rule when. Example: If I have say a group of 1000 rules as mentioned below Rule_1 Salience 1000 When Some_Conditions_1 Then Some_Actions_1 Rule_2 Salience 999 When Some_Conditions_2 Then Some_Actions_2 . . . Rule_1000 Salience 1 When Some_Conditions_1000 Then Some_Actions_1000 Let's assume that Some_conditions_2 = true Now even though I have an ordering using salience, the rule engine will still execute all the when conditions (Some_Conditions_1 .. Some_Conditions_1000) Is it possible for me to break this when evaluation even if one has been satisfied? Thanks & Regards, Nikhil S. Kulkarni MASTEK LTD. Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List. In the US, we're called MAJESCOMASTEK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. Mastek Limited does not accept any responsibility or liability for it. This e-mail and attachments (if any) transmitted with it are confidential and/or privileged and solely for the use of the intended person or entity to which it is addressed. Any review, re-transmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. This e-mail and its attachments have been scanned for the presence of computer viruses. It is the responsibility of the recipient to run the virus check on e-mails and attachments before opening them. If you have received this e-mail in error, kindly delete this e-mail from desktop and server. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ________________________________ ************************************************************************************** This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmaster(a)nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary. NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00 ************************************************************************************** -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20100611/0da1a60... ------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users End of rules-users Digest, Vol 43, Issue 60 ******************************************* MASTEK LTD. Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List. In the US, we're called MAJESCOMASTEK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. Mastek Limited does not accept any responsibility or liability for it. This e-mail and attachments (if any) transmitted with it are confidential and/or privileged and solely for the use of the intended person or entity to which it is addressed. Any review, re-transmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. This e-mail and its attachments have been scanned for the presence of computer viruses. It is the responsibility of the recipient to run the virus check on e-mails and attachments before opening them. 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How to break the rules execution if one has been satisfied ??

by Nikhil S. Kulkarni

Hi, In rules, in a particular rule set, all the when's are executed. In technical terms, the activation is first created. For all the rules in a rule set the when condition is first evaluated and if the when condition is satisfied for any rule then the rule is marked as ready to fire. Once all the when part for all the rules are evaluated then all the ones that were marked for fire are fired. The performance issue that if there are some 1500 rows. Hence, when the rule is fired there are 1500 when conditions that are firstly checked. And only after this the then part is fired. There is no way to break the when checks on successful satisfaction of a particular rule when. Example: If I have say a group of 1000 rules as mentioned below Rule_1 Salience 1000 When Some_Conditions_1 Then Some_Actions_1 Rule_2 Salience 999 When Some_Conditions_2 Then Some_Actions_2 . . . Rule_1000 Salience 1 When Some_Conditions_1000 Then Some_Actions_1000 Let's assume that Some_conditions_2 = true Now even though I have an ordering using salience, the rule engine will still execute all the when conditions (Some_Conditions_1 .. Some_Conditions_1000) Is it possible for me to break this when evaluation even if one has been satisfied? Thanks & Regards, Nikhil S. Kulkarni MASTEK LTD. Mastek is in NASSCOM's 'India Top 20' Software Service Exporters List. In the US, we're called MAJESCOMASTEK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. Mastek Limited does not accept any responsibility or liability for it. This e-mail and attachments (if any) transmitted with it are confidential and/or privileged and solely for the use of the intended person or entity to which it is addressed. Any review, re-transmission, dissemination or other use of or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited. This e-mail and its attachments have been scanned for the presence of computer viruses. It is the responsibility of the recipient to run the virus check on e-mails and attachments before opening them. If you have received this e-mail in error, kindly delete this e-mail from desktop and server. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Fwd: [drools-user] Write Drools Books - Packt Publishing.

by Mark Proctor

-------- Original Message --------Kshipra Singh <kshipras(a)packtpub.com> Hello Everybody, I represent Packt Publishing, the publishers of computer related books. We are planning to expand our range of Drools books and are currently inviting Drools experts interested in writing books for Packt. We do not expect our authors to have any past writing experience. All that you need to write for Packt is an expert knowledge of your subject, a passion to share it with others and an ability to communicate clearly in English. So, if you love Drools and fancy writing a book, here's an opportunity for you! Send us your book ideas at author(a)packtpub.com. Even if you don't have a book idea and are simply interested in writing a book, we are keen to hear from you! More details about this opportunity are available at : http://authors.packtpub.com/content/packt-invites-drools-book-ideas-authors Thanks Kshipra Singh Author Relationship Manager Packt Publishing www.PacktPub.com <http://www.PacktPub.com> Skype: kshiprasingh15 Twitter: http://twitter.com/packtauthors Interested in becoming an author? Visit http://authors.packtpub.com for all the information you need about writing for Packt.

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Write Drools Books - Packt Publishing.

by Kshipra Singh

Hello Everybody, I represent Packt Publishing, the publishers of computer related books. We are planning to expand our range of Drools books and are currently inviting Drools experts interested in writing books for Packt. We do not expect our authors to have any past writing experience. All that you need to write for Packt is an expert knowledge of your subject, a passion to share it with others and an ability to communicate clearly in English. So, if you love Drools and fancy writing a book, here's an opportunity for you! Send us your book ideas at author(a)packtpub.com. Even if you don't have a book idea and are simply interested in writing a book, we are keen to hear from you! More details about this opportunity are available at : http://authors.packtpub.com/content/packt-invites-drools-book-ideas-authors Thanks Kshipra Singh Author Relationship Manager Packt Publishing www.PacktPub.com Skype: kshiprasingh15 Twitter: http://twitter.com/packtauthors Interested in becoming an author? Visit http://authors.packtpub.com for all the information you need about writing for Packt.

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Re: [rules-users] Design question for user login monitoring

by Greg Barton

Sure, an EJB call is fine. The rule action is just plain old java code. However I'd suggest not making a remote call directly. Unless you're using multithreaded execution the rules will run In only one thread, so a slow RPC will pause everything. I'd send requests locally to an external processing thread. GreG On Jun 10, 2010, at 11:04 AM, Earnie Dyke <earniedyke(a)yahoo.com> wrote: Greg, Thanks for the quick response. I already have the Login logging working with and entity similar to what you describe. To address your issues: 1. Yes, a singleton rule session is what I had in mind. Running inside an MBean. 2. Could the service you refer to be an EJB? My app is using Seam if that adds anything to this discussion. Earnie! -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Design-question-for-u... Sent from the Drools - User mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

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Convert rules to XSLT and dumping Rete Tree to XML

by Andargor

Hello, first time on this list, be gentle :) I need to convert DRL/DSLR rules to XSLT. There are many reasons why this is necessary, but I would rather not get into that. The rules themselves are very simple presence/absence of "tags" and simple numeric comparisons (all easily converted to XSLT), and the rule base is acyclic. The RHS does not contain anything other than insertLogicals. I can already perform a topological sort of the rules and output XSLT. However, it gets messy because of the differing approach from Drools and I was wondering if I could somehow dump to XML the "compiled" Rete network from the KnowledgeBase (or WorkingMemory, or KnowledgeBuilder, I'm not sure). That way i think I can make the XSLT simpler and cleaner by using a more hierarchical approach to the statements. There used to be Dumper and ReteDumper classes to do this in the past, but looking at the source they seem to have disappeared. Can someone give me a few pointers on dumping the Rete Tree to XML? -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Convert-rules-to-XSLT... Sent from the Drools - User mailing list archive at Nabble.com.

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Re: [rules-users] Error using forAll() in

by Fnu Mahalakshmi

Hi, Thanks for the prompt response. I just broke the information into 2 separate rules and it works great. In 1 I modified it to check if the value of B is modified then that A value is modified In the 2 rule I checked if A is modified then all the Bs referencing A is modified. Removed the forAll completely. Thanks for the help :) -M -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of rules-users-request(a)lists.jboss.org Sent: Thursday, June 10, 2010 4:48 PM To: rules-users(a)lists.jboss.org Subject: rules-users Digest, Vol 43, Issue 58 Send rules-users mailing list submissions to rules-users(a)lists.jboss.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.jboss.org/mailman/listinfo/rules-users or, via email, send a message with subject or body 'help' to rules-users-request(a)lists.jboss.org You can reach the person managing the list at rules-users-owner(a)lists.jboss.org When replying, please edit your Subject line so it is more specific than "Re: Contents of rules-users digest..." Today's Topics: 1. Error using forAll() in rules (Fnu Mahalakshmi) 2. Re: Error using forAll() in rules (Wolfgang Laun) ---------------------------------------------------------------------- Message: 1 Date: Thu, 10 Jun 2010 16:16:47 -0400 From: Fnu Mahalakshmi <FMahalakshmi(a)nyx.com> Subject: [rules-users] Error using forAll() in rules To: "'rules-users(a)lists.jboss.org'" <rules-users(a)lists.jboss.org> Message-ID: <994758E35590274E955FA75763C5AA5002D010C6(a)MTEXMBXP01.ad.NYX.com> Content-Type: text/plain; charset="us-ascii" Hi, I have a list of items which I want to modify if condition turns true. I tried forall but its not working:: A{ String Name } B{ A a, } Rule " modify B if A name = 'bob'" when forall($a : A() $b : B( a == $a) ) then modify($b){ seta($a.getName())}; I have many B objects pointing to same A object and when name of A is modified I want the rule to fire and all B to also be modified. What is wrong above??? I tried this too: when forall($a : A() B( a == $a) ) then modify($b){ // but then I cannot do this step.which is required seta($a.getName())}; Any Idea??? Thank you M </pre> <hr size=1> Please consider the environment before printing this email. Visit our website at <a href="http://www.nyse.com">http://www.nyse.com</a> ***************************************************************************** Note: The information contained in this message and any attachment to it is privileged, confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to the message, and please delete it from your system. Thank you. NYSE Euronext. <pre>

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Error using forAll() in rules

by Fnu Mahalakshmi

Hi, I have a list of items which I want to modify if condition turns true. I tried forall but its not working:: A{ String Name } B{ A a, } Rule " modify B if A name = 'bob'" when forall($a : A() $b : B( a == $a) ) then modify($b){ seta($a.getName())}; I have many B objects pointing to same A object and when name of A is modified I want the rule to fire and all B to also be modified. What is wrong above??? I tried this too: when forall($a : A() B( a == $a) ) then modify($b){ // but then I cannot do this step.which is required seta($a.getName())}; Any Idea??? Thank you M </pre> <hr size=1> Please consider the environment before printing this email. Visit our website at <a href="http://www.nyse.com">http://www.nyse.com</a> ***************************************************************************** Note: The information contained in this message and any attachment to it is privileged, confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to the message, and please delete it from your system. Thank you. NYSE Euronext. <pre>

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Design question for user login monitoring

by Earnie Dyke

Greetings all, I have web app that I want to add user login monitoring to. The intent would be to identify hack attempts such as: 1. same user attempting login with invalid password over period of time 2. multiple failed login attempts with user id that varies only slightly 3. logins by the same user from multiple computers (license sharing) I believe I can do this with Fusion based rules but I have some design issues that I cannot resolve: 1. Since the login data is not tied to a specific user, I would like to have a singleton that collects the data and reasons over it. Should I use an MBean for this? 2. Because I have a singleton who to I get results for a specific users login attempt (I need to kick the user out)? Any other suggestions would be welcome. Thanks! Earnie! -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Design-question-for-u... Sent from the Drools - User mailing list archive at Nabble.com.

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rules-users June 2010