May 2007 - rules-users - Jboss List Archives

by Rajesh.Sachin10

I need a complete reference Documentations for Drools. I already have the document present in the following URL. http://labs.jboss.com/file-ccess/default/members/jbossrules/freezone/docs... Anyone have any other document for the complete reference for dsl and drl files. -- View this message in context: http://www.nabble.com/Need-Drools-Documentations-tf3848849.html#a10901913 Sent from the drools - user mailing list archive at Nabble.com.

17 years, 2 months

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RE: [rules-users] installing eclipse plugin for rules v. 4

by Manukyan, Sergey

Thanks Mike & Mark, It helped! Here is what I did: 1. Downloaded http://download.jboss.org/jbossrules/release/4.0.0.11754MR2/jbossrules-4 .0.0.11754MR2-eclipse.zip 2. Stopped RAD 7.0 3. Unzipped it to temporary folder and copied: \features\org.drools.eclipse.feature_4.0.0.11754MR2 -> IBM\SDP70\features \plugins\org.drools.eclipse_4.0.0.11754MR2.jar -> IBM\SDP70\plugins 3. Started RAD 7.0 4. The feature was disabled by default. So I went to menu: Help/Software Updates/Manage Configuration Clicked button show disabled feature and enabled it. Required another restart and then it worked. One more question, will JBoss Rules Engine v. 4 work on J2EE container with JDK 1.4? As I am using Webshphere 6.0 ... Thanks again! -Sergey -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Anstis, Michael (M.) Sent: Thursday, May 31, 2007 10:19 AM To: Rules Users List Subject: RE: [rules-users] installing eclipse plugin for rules v. 4 Works for me too. I've got "org.drools.eclipse_4.0.0.11754MR2.jar" in "C:\Program Files\IBM\SDP70\plugins". Cheers, Mike -----Original Message----- From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Mark Proctor Sent: 31 May 2007 15:10 To: Rules Users List Subject: Re: [rules-users] installing eclipse plugin for rules v. 4 the download url works fine for me: http://download.jboss.org/jbossrules/release/4.0.0.11754MR2/jbossrules-4 .0.0.11754MR2-eclipse.zip You'll need to unzip that into your eclipse directory, you will also need to make sure that GEF is installed, see the wiki for more details. Mark Manukyan, Sergey wrote: > Folks, > > I have Rational Application Developer 7.0.0.2 , it uses Eclipse 3.2.2 > > Need to install JBoss rules Eclipse plugin v. 4 > > What is the best way to do it, and is it possible at all? > > I tried this URL: > http://anonsvn.labs.jboss.com/labs/jbossrules/updates/drools-ide-update/ > > but it leads to installation of v 3. > > The I downloaded the zip file with v 4., but when installing it gives an > error: > > ************************************************************************ > ** > Network connection problems encountered during search. > Unable to access > "jar:file:C:/Sergey/jbossrules-4.0.0.11754MR2-eclipse.zip!/". > Unable to access site: > "jar:file:C:/Sergey/jbossrules-4.0.0.11754MR2-eclipse.zip!/" [no entry > name specified] > Unable to access site: > "jar:file:C:/Sergey/jbossrules-4.0.0.11754MR2-eclipse.zip!/" [no entry > name specified] > ************************************************************************ > ** > > > Any ideas...? > > -Sergey > > > > ********************** > ** LEGAL DISCLAIMER ** > ********************** > > This E-mail message and any attachments may contain > legally privileged, confidential or proprietary > information. If you are not the intended recipient(s), > or the employee or agent responsible for delivery of > this message to the intended recipient(s), you are > hereby notified that any dissemination, distribution > or copying of this E-mail message is strictly > prohibited. If you have received this message in > error, please immediately notify the sender and > delete this E-mail message from your computer. > > _______________________________________________ > 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 _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users

17 years, 2 months

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Java methods in LHS ?

by Joj

Hi, 1) Can v use Java methods within the passed Java objects to do some evaluations or calculations in LHS? Plz show an example. 2) Can v use it in RHS? (Example) 3) Can v call static Java methods written inside a Java class from RHS? Plz reply A.F.A.P. Jojan -- View this message in context: http://www.nabble.com/Java-methods-in-LHS---tf3847110.html#a10895937 Sent from the drools - user mailing list archive at Nabble.com.

17 years, 2 months

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Extracting an boolean variable

by Rajesh.Sachin10

I tried to extract a boolean variable from a class using context. The following is my code in DSL file. context : Context(state == START_UP) Classname(aliasname : booleanVariableName) When I tried to run this statement I got the following error message in DRL file. Error Message: Unable to Create Field Extractor for 'booleanVariableName'. But when I tried to extract a String Variable the Error is cleared. Can Someone explain me about this problem in Drools. Thanks. -- View this message in context: http://www.nabble.com/Extracting-an-boolean-variable-tf3827902.html#a1083... Sent from the drools - user mailing list archive at Nabble.com.

17 years, 2 months

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Use of if else condition in drools

by Rajesh.Sachin10

How to use if else conditions in one [when] [then] condition in drools? Eg: if(something){ do 1} else {do 2} I need to use only one [when] [then] condition. The requirement is like that. -- View this message in context: http://www.nabble.com/Use-of-if-else-condition-in-drools-tf3846333.html#a... Sent from the drools - user mailing list archive at Nabble.com.

17 years, 2 months

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Order of columns and of constraints

by Dirk Bergstrom

Does the order of columns in the rule definition, and the order of constraints within a column matter? For a given rule, I know which test is most likely to fail, and (probably) which one is most "expensive" in terms of processing time (eg. 'someCollection contains $var' is more expensive than 'field == "literal"'). I'd like to put the fail-fast tests up front, and the expensive ones last. Does that actually work in Drools? Can I "optimize" my rules by juggling the order of the columns and constraints? -- Dirk Bergstrom dirk(a)juniper.net _____________________________________________ Juniper Networks Inc., Computer Geek Tel: 408.745.3182 Fax: 408.745.8905

17 years, 2 months

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"Or" and Collect

by Dirk Bergstrom

In my ongoing efforts to abuse Drools syntax, I would like to write rules like this: rule "severe bugs for which a member of your group is dev or support owner" when $group : UserGroup( ) $badBugs : List() from collect( Bug( (devOwner memberOf $group or supportOwner memberOf $group), severity == "hair-on-fire" ) then $group.runAroundInStarkRavingPanicOver($badBugs) end Will that work? Is that the right syntax? Will it be performant if I've got 10000 Bugs and 1000 UserGroups? According to Mark's "What's New in JBoss Rules 4.0" presentation, you can use && and || without subrule generation, and I have a vague memory of seeing something about "and" & "or" as well, but I can't remember where I saw it. Thanks. -- Dirk Bergstrom dirk(a)juniper.net _____________________________________________ Juniper Networks Inc., Computer Geek Tel: 408.745.3182 Fax: 408.745.8905

17 years, 2 months

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Need Help on using rules in Multiple Threads

by shilpa.raghavendra＠wipro.com

Hi, I need to know how to use rule engine in multiple thread environment, the situation as given below I have to handle huge records nearly 40000 so I will create a thread contains 500 records and run it. Each thread will execute the rules but I am not getting the expected result. May be the threads object are conflicting due to multiple thread execution. Please help me to come out of it Regards Shilpa 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, 2 months

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How to use the value of a function in both the LHS and RHS side of the rule ?

by Krishnan

Hi, I want to parse a file and match the file for several regular expressions. Based on what I match, I write more rules so that based on all the rules, I can set my results. Brute force method : Parse the entire file and add all the lines into the working memory. Write rules that check each line for some regular expression. This works great. I want to optimize the above, as we are checking each line, if we got we are looking for, then I want to get out. So, I wrote a function inside the rule file like the below function String getLine(BufferedReader fileReader) { String line; try { if ((line = fileReader.readLine()) != null) { return line.toLowerCase(); } else { System.out.println("This is an empty line."); } } catch (Exception ex) { } return line; } Now, I need to write the rules that will use this. rule "Generate New Line" when eval (getLine(fileReader) != null) then System.out.println("Generate new line"); //assert(getLine(fileReader)); // need to somehow assert the line specified in the eval condition end Also, I am confused, how to specify file end. rule "File End" when eval (getLine(fileReader) == null) then System.out.println("Reached end of file"); // I am assuming this is not needed since if all rules are executed, then it will get out of fireRules() anyways ? end Any help is appreciated. TIA, Krishnan (newbie) - Sivaramakrishna Iyer Krishnan (Anand) Never assume the obvious is true. - William Safire

17 years, 2 months

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integrating springs and drools by just passing variable

by abijith

hai, i have a doubt on integration of spring and drools. Is there any problems in integrating springs n drools by just passing the variable value from the implementation class. iam not using anything called JSR94 for integration. well plz share some knowlege on this message. regards, abijith -- View this message in context: http://www.nabble.com/integrating-springs-and-drools-by-just-passing-vari... Sent from the drools - user mailing list archive at Nabble.com.

17 years, 2 months

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rules-users May 2007