February 2011 - rules-users - Jboss List Archives

Re: [rules-users] hardcore masterclass (west london)

by sam.squire＠paretopartners.com

The hardcore masterclass sounds interesting to me. Where would it be held and what would the entry fees be? Sam Squire From: rules-users-request(a)lists.jboss.org To: rules-users(a)lists.jboss.org Date: 12/02/11 23:39 Subject: rules-users Digest, Vol 51, Issue 40 Sent by: rules-users-bounces(a)lists.jboss.org 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. Re: hardcore masterclass (west london) (Mark Proctor) 2. Re: hardcore masterclass (west london) (Mark Proctor) 3. Re: hardcore masterclass (west london) (Mauricio Salatino) 4. Re: hardcore masterclass (west london) (Salina Fung/UFL - ICIL) ---------------------------------------------------------------------- Message: 1 Date: Sat, 12 Feb 2011 17:49:03 +0000 From: Mark Proctor <mproctor(a)codehaus.org> Subject: Re: [rules-users] hardcore masterclass (west london) To: rules-users(a)lists.jboss.org Message-ID: <4D56C80F.3090601(a)codehaus.org> Content-Type: text/plain; charset="iso-8859-1" On 12/02/2011 16:27, Mauricio Salatino wrote: > I'm really interested in that kind of courses, but I'm pretty far > away. Can I help you creating material and content for those courses? > In that way we can share the meetups knowledge in different places. Wasn't planning to do any preparation, far too much work. To formally prepare teaching material for this that could be handled for people at all levels would take me weeks :) Mostly just taking people over code and doodling on board some of the data structures and verbally explaining how things work. Mark > > Greetings. > > > On Sat, Feb 12, 2011 at 12:56 PM, Mark Proctor <mproctor(a)codehaus.org > <mailto:mproctor@codehaus.org>> wrote: > > I was just wondering if anyone was interested in learning hard > core rule > engine theory, with the aim of helping you to develop some core engine > features and be involved in the next generation Drools engine. If this > interests anyone let me know and I can organise some meetups, probably > based in West London (Chiswick). > > Mark > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > -- > - CTO @ http://www.plugtree.com > - MyJourney @ http://salaboy.wordpress.com > - Co-Founder @ http://www.jbug.com.ar > > - Salatino "Salaboy" Mauricio - > > > _______________________________________________ > rules-users mailing list > rules-users(a)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/20110212/7f5cc82... ------------------------------ Message: 2 Date: Sat, 12 Feb 2011 18:04:42 +0000 From: Mark Proctor <mproctor(a)codehaus.org> Subject: Re: [rules-users] hardcore masterclass (west london) To: rules-users(a)lists.jboss.org, Rules Dev List <rules-dev(a)lists.jboss.org> Message-ID: <4D56CBBA.5060606(a)codehaus.org> Content-Type: text/plain; charset="utf-8" On 12/02/2011 16:53, Greg Barton wrote: > I'd be interested in listening in if you can webcast it. See previous email :) probably way to unstuctured. Think of it more as pair programming mentoring, than formal teaching. Which works great with two or three people in a room together. I could be tempted to do some remote sessions, shared desktop etc - although in reality this would be no different from our current IRC availability, where we are always willing to talk through core code with people. Remote voice can also often by very dry and boring. What I need to avoid is formal lecturing, I don't have the time to prepare for that. But I could talk through some of the classes and data structures. I guess it depends how serious peple are out there. If there are two or three people that say they'll make time to do some core work each week, I would be willing to formalise more of the content. But I'm reluctant to do that without some quid pro quo :) My goal from this is to help some people who have wanted to do core engine work, who have the desire, but not quite sure how to start. Mark > > GreG > > On Feb 12, 2011, at 10:27, Mauricio Salatino <salaboy(a)gmail.com > <mailto:salaboy@gmail.com>> wrote: > >> I'm really interested in that kind of courses, but I'm pretty far >> away. Can I help you creating material and content for those courses? >> In that way we can share the meetups knowledge in different places. >> >> Greetings. >> >> >> On Sat, Feb 12, 2011 at 12:56 PM, Mark Proctor <mproctor(a)codehaus.org >> <mailto:mproctor@codehaus.org>> wrote: >> >> I was just wondering if anyone was interested in learning hard >> core rule >> engine theory, with the aim of helping you to develop some core >> engine >> features and be involved in the next generation Drools engine. If >> this >> interests anyone let me know and I can organise some meetups, >> probably >> based in West London (Chiswick). >> >> Mark >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> >> >> -- >> - CTO @ http://www.plugtree.com >> - MyJourney @ http://salaboy.wordpress.com >> - Co-Founder @ http://www.jbug.com.ar >> >> - Salatino "Salaboy" Mauricio - >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org <mailto:rules-users@lists.jboss.org> >> https://lists.jboss.org/mailman/listinfo/rules-users > > > _______________________________________________ > rules-users mailing list > rules-users(a)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/20110212/c804585... ------------------------------ Message: 3 Date: Sat, 12 Feb 2011 17:07:42 -0300 From: Mauricio Salatino <salaboy(a)gmail.com> Subject: Re: [rules-users] hardcore masterclass (west london) To: Rules Users List <rules-users(a)lists.jboss.org> Cc: Rules Dev List <rules-dev(a)lists.jboss.org> Message-ID: <AANLkTinZ4STQgka80PvD9ybTVfegU7qOSwt9q4KLFYz_(a)mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1" Count me in! I will be thinking about how to reach west london :). I'm one of those that you mention. It's a very good initiative! Greetings! 2011/2/12 Mark Proctor <mproctor(a)codehaus.org> > On 12/02/2011 16:53, Greg Barton wrote: > > I'd be interested in listening in if you can webcast it. > > See previous email :) probably way to unstuctured. Think of it more as pair > programming mentoring, than formal teaching. Which works great with two or > three people in a room together. > > I could be tempted to do some remote sessions, shared desktop etc - > although in reality this would be no different from our current IRC > availability, where we are always willing to talk through core code with > people. Remote voice can also often by very dry and boring. What I need to > avoid is formal lecturing, I don't have the time to prepare for that. But I > could talk through some of the classes and data structures. > > I guess it depends how serious peple are out there. If there are two or > three people that say they'll make time to do some core work each week, I > would be willing to formalise more of the content. But I'm reluctant to do > that without some quid pro quo :) > > My goal from this is to help some people who have wanted to do core engine > work, who have the desire, but not quite sure how to start. > > Mark > > > GreG > > On Feb 12, 2011, at 10:27, Mauricio Salatino <salaboy(a)gmail.com> wrote: > > I'm really interested in that kind of courses, but I'm pretty far away. > Can I help you creating material and content for those courses? In that way > we can share the meetups knowledge in different places. > > Greetings. > > > On Sat, Feb 12, 2011 at 12:56 PM, Mark Proctor <mproctor(a)codehaus.org>wrote: > >> I was just wondering if anyone was interested in learning hard core rule >> engine theory, with the aim of helping you to develop some core engine >> features and be involved in the next generation Drools engine. If this >> interests anyone let me know and I can organise some meetups, probably >> based in West London (Chiswick). >> >> Mark >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> > > > > -- > - CTO @ http://www.plugtree.com > - MyJourney @ http://salaboy.wordpress.com > - Co-Founder @ http://www.jbug.com.ar > > - Salatino "Salaboy" Mauricio - > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > > _______________________________________________ > rules-users mailing listrules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- - CTO @ http://www.plugtree.com - MyJourney @ http://salaboy.wordpress.com - Co-Founder @ http://www.jbug.com.ar - Salatino "Salaboy" Mauricio - -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.jboss.org/pipermail/rules-users/attachments/20110212/5cb2934... ------------------------------ Message: 4 Date: Sun, 13 Feb 2011 07:29:43 +0800 From: "Salina Fung/UFL - ICIL" <salina(a)icil.net> Subject: Re: [rules-users] hardcore masterclass (west london) To: "Rules Users List" <rules-users(a)lists.jboss.org> Message-ID: <20110212232943.564b16ad(a)icillx01.icil.net> Content-Type: text/plain; charset="us-ascii" I am interested in the webcast or the online course too Thanks Salina ----- Original Message ----- From: Greg Barton [mailto:greg_barton@yahoo.com] To: Rules Users List [mailto:rules-users@lists.jboss.org] Sent: Sun, 13 Feb 2011 00:53:33 +0800 Subject: Re: [rules-users] hardcore masterclass (west london) > I'd be interested in listening in if you can webcast it. > > GreG > > On Feb 12, 2011, at 10:27, Mauricio Salatino <salaboy(a)gmail.com> wrote: > > > I'm really interested in that kind of courses, but I'm pretty far away. > Can I help you creating material and content for those courses? In that way > we can share the meetups knowledge in different places. > > > > Greetings. > > > > > > On Sat, Feb 12, 2011 at 12:56 PM, Mark Proctor <mproctor(a)codehaus.org> > wrote: > > I was just wondering if anyone was interested in learning hard core rule > > engine theory, with the aim of helping you to develop some core engine > > features and be involved in the next generation Drools engine. If this > > interests anyone let me know and I can organise some meetups, probably > > based in West London (Chiswick). > > > > Mark > > > > _______________________________________________ > > rules-users mailing list > > rules-users(a)lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/rules-users > > > > > > > > -- > > - CTO @ http://www.plugtree.com > > - MyJourney @ http://salaboy.wordpress.com > > - Co-Founder @ http://www.jbug.com.ar > > > > - Salatino "Salaboy" Mauricio - > > _______________________________________________ > > rules-users mailing list > > rules-users(a)lists.jboss.org > > https://lists.jboss.org/mailman/listinfo/rules-users > ------------------------------ _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users End of rules-users Digest, Vol 51, Issue 40 ******************************************* This message may contain confidential and privileged information and is intended solely for the use of the named addressee. 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Travelling Salesman

by Lukáš Petrovický

Hello, I've been making myself familiar with Drools Planner and in the process of doing so, I've hacked together a simple algorithm for optimizing the Travelling Salesman Problem: https://github.com/triceo/DroolingTSP At this point, I get a 7 % improvement over a route with 71 stops, which was previously assembled using a nearest-neighbor algorithm. The reason why the improvement isn't bigger is that I'm stuck with Tabu search only - for my use case, simulated annealing doesn't work at all. (Exits forcefully after 1 to 7 steps, resulting in only a minimal improvement.) I'll be interested in any comments and suggestions you might be able to provide. Best regards! -- Lukáš Petrovický QA Engineer, JBoss Enterprise BRMS JBoss by Red Hat, Czech Republic

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Type Declaration upgrade

by delete

Hi. I have such declaration of type declare Contact firstName : String end then I want to add new property to this type. so the next version is declare Contact firstName : String newField : String end this type declaration is in separate drl file. then I add this new type to current KnowledgeBase. but when I execute knowledgeBase.getFactType("test.package", "Contact"); I get old version of Contact. During debugging I found the place where is should be upgraded in the KnowledgeBase. org.drools.common.AbstractRuleBase.mergePackage there is // merge the type declarations if ( newPkg.getTypeDeclarations() != null ) { // add type declarations for ( TypeDeclaration type : newPkg.getTypeDeclarations().values() ) { // @TODO should we allow overrides? only if the class is not in use. if ( !pkg.getTypeDeclarations().containsKey( type.getTypeName() ) ) { // add to package list of type declarations pkg.addTypeDeclaration( type ); } } } so according this comments it's not possible to upgrade Type on the fly. Am I missing something? Does someone had such problems or know the workaround. Thanks in advance, Yuriy -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Type-Declaration-upgr... Sent from the Drools - User mailing list archive at Nabble.com.

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Declaring events separately from rules breaks expires

by Samuli Saarinen

Hello, I have the following situation with Drools 5.1.1: 2 drl files where one contains an event declaration: declare Event1 @role(event) @expires(1s) end and other has a simple rule: rule "Evt1" when e: Event1(value == 10) then System.out.println(e); end And I have the following test which fails: ses.insert(new Event1(1)); ses.fireAllRules(); clock.advanceTime(2, TimeUnit.SECONDS); ses.fireAllRules(); assertEquals(ses.getFactCount(), 0L); The same test passes if the rule and event declaration are on the same drl file. Further more if I declare the event in both of the files with different @expires the one being used is the one that is added first. I was hoping that the first declaration to be a "default expires" that could be overwritten later on with a new declaration but it seems that this is currently not possible. Cheers, Samuli -- Remion Oy Etävalvontajärjestelmät liiketoiminnan Samuli Saarinen tehostamiseen gsm +358 (0)50 3560075 fax +358 (0)3 2125064 www.remion.com

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How to Ignore Rule Compilation Error and Continue to Compile Other Rules?

by hyjshanghai

I want to add several rules into a KnowledgeBuilder instance through invocation of kbuilder.add() for each rule. I want that if one rule fails to be added, the remaining rules can still be added into kbuilder for business validation. However, this seems not to be the default behavior. If one rule fails to be added, other added rules won't take effect. How can I realize such fault-tolerant rule loading? -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/How-to-Ignore-Rule-Co... Sent from the Drools - User mailing list archive at Nabble.com.

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Applying rules on the data in an RDBMS

by Gorantla, Bhaskar (GE Capital)

We have over 15,000 rows in the database and we need to apply the rules on this data. We are thinking of doing the following. a. Read the data from the database in batches b. Create beans for the data that we just read c. Run the rules on the beans (this results in setting some attributes on the bean) d. Save the beans back to the database As you can see, there is some overhead in reading the data from the database, performing the OR mappings, and writing the data back to the database. Is there a way to avoid some of these steps? Can you please suggest some techniques that we can use to improve the performance? Also, I was wondering whether we can configure Drools to operate directly on the data in the database. Thanks Bhaskar

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Re: [rules-users] [rules-dev] Drools 5 load drl rule file from file system.

by Esteban Aliverti

Did you try using ResourceFactory.newFileResource("C:\\savedRules\\rule.drl")? A FileResource is more appropriated for your case I think. By the way, this kind of questions should go in rules-users(a)lists.jboss.org. I'm forwarding it now. Best, XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Esteban Aliverti - Developer @ http://www.plugtree.com - Blog @ http://ilesteban.wordpress.com On Mon, Feb 14, 2011 at 8:21 AM, stefano82 <illidan.guru(a)gmail.com> wrote: > > hello, > i devloped a custom rule editor able to create drl file and save them in > file system under a given directory. (e.g. c:\savedRules\rule.drl). > The problem is that once the rule is saved i need to run it with drools > engine. > In my class i try to load rule in this way: > > KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(); > > kbuilder.add(ResourceFactory.newClassPathResource("c:\savedRules\rule.drl"), > ResourceType.DRL); > > but its doesn't work. the exception is "rule.drl cannot be opened because > it > does not exist" but it actually exists.... > > What am I doing wrong? there is another way to load rules directly from > file > sistem? > > thanks in advice. > -- > View this message in context: > http://drools-java-rules-engine.46999.n3.nabble.com/Drools-5-load-drl-rul... > Sent from the Drools - Dev mailing list archive at Nabble.com. > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-dev >

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CEP - @expires an event cause deadlock?

by rodih

Hi, I am new to CEP though I made a simple rule which which declares an event as expires after few milliseconds. If events are inserted into a stream and at the same time events are retracted from the stream due to expiration, the application is stuck - Cant insert any more events and no events are retracted. declare StockEventWrapper @role( event ) @expires(10s) end rule "Stock Event Buffer Rules" dialect "java" when $stock : StockMotiveFactWrapper(timeAlerted == null) $sew: StockEventWrapper(this.synonymContainedInTitle == true && $stock.stockId == this.stockId ,$stock.motiveTypeId == this.motiveTypeId) over window:time(24h) from entry-point "STOCK_EVENTS" then System.out.println("Creating " + $stock.getStockId() + " " + $stock.getMotiveTypeId()); modify($stock){ setTimeAlerted(new Date()); } end Any known issues? any ideas? Thanks, Rod -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/CEP-expires-an-event-... Sent from the Drools - User mailing list archive at Nabble.com.

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Drools Fusion - marshalling events

by mproch

Hello, I would like to know if there is a mechanism that allows for persistence of temporal events (Drools Fusion) - for example to be able to survive server crash. It doesn't work out of the box - I raised https://issues.jboss.org/browse/JBRULES-2297 (along with https://issues.jboss.org/browse/JBRULES-2296, https://issues.jboss.org/browse/JBRULES-2318 - all having unit tests and patches...) about 1,3 year ago but they were totally ignored so I suppose I must have missed something really simple ;) (we use our owned patched version in the meantime, but I was wondering if I can switch to drools 5.1.1 without additional patches - unfortunatelly my tests still fail) br, maciek prochniak -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Drools-Fusion-marshal... Sent from the Drools - User mailing list archive at Nabble.com.

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Upgrading from Drools 2 to 5

by Saleem Lakhani

Hi, I need some help regarding upgrading our validation engine from 2.0 to 5.0, I have added the required jars and my java code is compiling but the DRL and DSL are not. Any suggestions? Thanks, saleem

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rules-users February 2011