June 2007 - rules-users - Jboss List Archives

Looking for JRules Developers for Open Source Project

by Steven Waldren

Hello, I am looking for some experienced JRules developers for some contracted work to start the core of a new Open Source Healthcare Decision Support system based on JRules. If you would be interested, please email me off list or contact me through Skype for more information. Best, Steven -- Steven E. Waldren, M.D., M.S. OpenHealth Data, Inc. Skype: steven.waldren swaldren(a)openhealthdata.com

17 years, 1 month

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Free Session: In-the-Brain of Mark Proctor on JBoss Rules - July 11

by Mark Proctor

http://markproctor.blogspot.com/2007/06/free-session-in-brain-of-mark-pro... *Talk:* JBoss Rules *Speaker:*Mark Proctor, JBoss Rules Lead *Date:* Wednesday, 11th July 2007 *Times:* 18:30 - 20:30 *Venue:* Skills Matter 1 Sekforde Street London EC1R 0BE

17 years, 1 month

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4.0 MR3 is released

by Mark Proctor

Bar some fixes and integration work in the Eclipse and BRMS we are near enough complete now. So the work on documentation will now start. Release Notes summary - http://wiki.jboss.org/wiki/Wiki.jsp?page=4.0.0.MR3ReleaseNotes detailed - http://jira.jboss.org/jira/secure/ReleaseNote.jspa?version=12310871&style... Downloads http://labs.jboss.com/jbossrules/downloads Enjoy The Drools Team

17 years, 1 month

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how to return additional information from method in 'eval'

by Aeternitas

Hello. I have the following problem: Let's imagine we have type like this - public class Interval{ private long start; private long end; private int usage; ... } Now I need to insert in DB new Interval, but before doing it I have to check, whether DB doesn't have any interval, which intersects new one and satisfies some rules (e.g. rules for summ of usage...). I use eval for it - I have method, which can check it using DB services etc. But... eval can return only boolean... I want to know also why I can't insert this interval (e.g. which intervals prevent to do it). For me it will be comfortable to do something like this: when ... # $intervals - collection of intervals, which intersects new interval $intervals : eval(newInterval) #<check whether size of intervals is great than 0> then # We can insert such interval and using global variable we inform about it. 'error' it is collection of # mistakes error.add("new interval can't be inserted because of " + <some information from $intervals> ); But it will not work (or maybe new engine, version 4, will allow such 'eval' using ?). Could you advice anything? (Method, which I use in eval have no access to the working memory, so I can't use global variables. Also I don't want to fire such method again in "then" section to know "why I can't insert new interval")... I hope I have described my problem clearly. Thanks in advance Maxym -- View this message in context: http://www.nabble.com/how-to-return-additional-information-from-method-in... Sent from the drools - user mailing list archive at Nabble.com.

17 years, 1 month

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about the jboss Rules UNLOOP

by jiangjinfeng 05542

Hi developer i notice that the decision table support UNLOOP in JBoss Rules User Guide 4.0 but when i try to use it in my application I got an exception:"UNLOOP cannot be resolved".Is there anything missing or does it support UNLOOP in decision table.Any pointer would be great appreciated!

17 years, 1 month

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Clear Working Memory?

by Rajesh.Sachin10

How to Clear all the Asserted Objects from the Working Memory? There is any keyword availble for that in Drools 3.0.6. -- View this message in context: http://www.nabble.com/Clear-Working-Memory--tf3960748.html#a11239709 Sent from the drools - user mailing list archive at Nabble.com.

17 years, 1 month

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JBoss rules and EJB3 integration best practices?

by Philip Reimer

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello. I'm very new to JBoss rules (or rules engines in general), so please excuse any stupid questions. I have to integrate jboss rules into an ejb3 project: expose rules functionality via a session bean (and probably a web service later). I got it basically working but it's probably not a very elegant solution. Could anyone give me some hints for some best practices when using rules from within a session bean? Especially, regarding the caching of built rule bases? Thanks in advance, Philip -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGfm6Jzz98eoVPWsQRArJtAJ0RwT/I/PYxZN7LzVSTuejorpGo0gCeJgqX DqgnI1JWcBzOBFsuqSqSVUo= =26FR -----END PGP SIGNATURE-----

17 years, 1 month

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mapping different DRL files to same DSL file (Domain specific Language)

by vijay nooka

hi, working on DomainSpecificLanguage....i am having 4 DRL files having Same English Text sending different values and having one DSL file.....i am reading all DRL files with a same DSL file....expecting the output for 4 fires..but its not...giving only one out put( expecting firing once).... u will be more clear with this: lets have DRL1, DRL2, DRL3, DRL4 and one DSL file with name DSLforALL PackageBuilder builder = new PackageBuilder(); Reader source1 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DRL1.drl" ) ); Reader dsl1 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DSLforALL.dsl" ) ); Reader source2 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DRL2.drl" ) ); Reader dsl2 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DSLforALL.dsl" ) ); Reader source3 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DRL3.drl" ) ); Reader dsl3 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DSLforALL.dsl" ) ); Reader source4 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DRL4.drl" ) ); Reader dsl4 = new InputStreamReader( DroolsTest.class.getResourceAsStream( "DSLforALL.dsl" ) ); builder.addPackageFromDrl( source1, dsl1 ); builder.addPackageFromDrl( source2, dsl2 ); builder.addPackageFromDrl( source3, dsl3 ); builder.addPackageFromDrl( source4, dsl4 ); Package pkg = builder.getPackage(); RuleBase ruleBase = RuleBaseFactory.newRuleBase(); ruleBase.addPackage(pkg); WorkingMemory workingMemory = ruleBase.newWorkingMemory(); each DRL file sending different values to the Same DSL file...so we are expecting the Out put for four Scenarios....but its not.... its firing only once for one Scenario....what do u say for this...kindly help Thanks Vijay -- View this message in context: http://www.nabble.com/mapping-different-DRL-files-to-same-DSL-file-%28Dom... Sent from the drools - user mailing list archive at Nabble.com.

17 years, 1 month

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Re: [rules-users] RuleFlow Constraint Editor and Code Completion (includes screenshots)

by Mark Proctor

Yes trunk, you can get the last successful build from here: http://dev45.qa.atl.jboss.com:8585/hudson/job/jboss-rules/ I'll be doing MR3 over the weekend. Mark Felipe Piccolini wrote: > Is this (constraint editor) just available on SVN trunk? because I > downloaded the 4.0.0.11754MR2 from the web and the editor of ruleflow > doesnt show the constraint thing on the Properties View (eclipse). > On 21-06-2007, at 23:07, Mark Proctor wrote: > >> http://markproctor.blogspot.com/2007/06/ruleflow-constraint-editor-and-co... >> >> --------------------------------------------------------------------- >> To unsubscribe from this list please visit: >> >> http://xircles.codehaus.org/manage_email >> > > > *Felipe Piccolini M.* > felipe.piccolini(a)bluesoft.cl <mailto:felipe.piccolini@bluesoft.cl> > > > >

17 years, 1 month

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Need Help: Errors while running FibonacciExample

by venkatesh devalapura nagabhushana

Hi, After successfully compiling the example code FibnacciExample.java, I tried to run it, I get the following error, let me know how to solve it: java FibonacciExample Exception in thread "main" java.lang.ExceptionInInitializerError at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.6.0.0) at org.drools.semantics.java.RuleBuilder.<clinit>() (Unknown Source) at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.6.0.0) at org.drools.compiler.PackageBuilder.addRule(org.drools.lang.descr.RuleDescr) (Unknown Source) at org.drools.compiler.PackageBuilder.addPackage(org.drools.lang.descr.PackageDescr) (Unknown Source) at org.drools.compiler.PackageBuilder.addPackageFromDrl(java.io.Reader) (Unknown Source) at FibonacciExample.main(java.lang.String[]) (Unknown Source) at gnu.java.lang.MainThread.call_main() (/usr/lib/libgcj.so.6.0.0) at gnu.java.lang.MainThread.run() (/usr/lib/libgcj.so.6.0.0) Caused by: java.util.regex.PatternSyntaxException: At position 2 in regular expression pattern: expected end of character class (.*)\bmodify\s*$([^)]+)$(.*) ^ at java.util.regex.Pattern.Pattern(java.lang.String, int) (/usr/lib/libgcj.so.6.0.0) at java.util.regex.Pattern.compile(java.lang.String, int) (/usr/lib/libgcj.so.6.0.0) at org.drools.semantics.java.KnowledgeHelperFixer.<clinit>() (Unknown Source) at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.6.0.0) ...8 more Is it require to place .drl file in the same directory as that of the source code ? Thanks, Venkatesh 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

17 years, 1 month

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rules-users June 2007