February 2012 - rules-users - Jboss List Archives

Question about custom accumulation functions

by Bruno Freudensprung

Hi, While testing my custom accumulation function I noticed an unexpected behavior (th'ats of course a personal point of view). It seems that Drools 5.1 calls accumulate(...) and getResult(...) as many times as the number of accumulated facts (accumulate, getResult, accumulate, getResult, etc...). Is it supposed to work like this? Best regards, Bruno.

11 years, 1 month

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How to run the " rule test scenarios " from the Eclipse.

by srinivasasanda

Hi All, i created a simple Fact (person) and rule (like age < 20) in Guvnor . and i created a simple "rule test scenarios" , when i submit "Run Scenario" button in "rule test scenarios" it is showing result 100% . So i have thousands of rules & for each rule i have a "rule test case" . So i want to run the test scenarios from outside of the Guvnor (like eclipse)to execute all at once.. Can anybody help me.. Thanks in Advance.. -- View this message in context: http://drools.46999.n3.nabble.com/How-to-run-the-rule-test-scenarios-from... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 1 month

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Dependency enumeration

by agarwalk

Hi I have created following enumeration and java class file. *Enumeration:* 'OrderData.propertyState':(new com.asps.rules.OrderData()).loadStates() 'OrderData.fulfillmentReviewerName[propertyState]':'(new com.asps.rules.OrderData()).loadReviewers("@{propertyState}")' *Java class:* public class OrderData implements Serializable { private String propertyState; private String fulfillmentReviewerName; // getters and setters public List<String> loadStates() { List<String> states = new ArrayList<String>(); states.add("CA"); states.add("NY"); states.add("FL"); return states; } public List<String> loadReviewers(final String propertyState) { List<String> reviewers = new ArrayList<String>(); System.out.println("### in load reviewers ### : " + propertyState); if ("CA".equalsIgnoreCase(propertyState)) { reviewers.add("A"); reviewers.add("B"); System.out.println("Reviewers : A & B"); } else if ("NY".equalsIgnoreCase(propertyState)) { reviewers.add("C"); reviewers.add("D"); System.out.println("Reviewers : C& D"); } else if ("FL".equalsIgnoreCase(propertyState)) { reviewers.add("E"); reviewers.add("F"); System.out.println("Reviewers : E& F"); } else { reviewers.add("G"); reviewers.add("H"); System.out.println("Reviewers : G& H"); } return reviewers; } } I created a rule as follows WHEN There is an OrderData with: propertyState[propertyState]* FL* --- This is a drop down which is being displayed correctly fulfillmentReviewerName [fulfillmentReviewerName] -- This should have been the drop down. Values are dependent on the state selected. When i try to create above rule the enumeration is loaded correctly for propertyState but the enumeration is not loaded for fulfillmentReviewerName field. When I saw the logs the correct method and condition is being invoked (as per Sys out)but drop down does not contain anything. ANy suggestions? -- View this message in context: http://drools.46999.n3.nabble.com/Dependency-enumeration-tp3245703p324570... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 2 months

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How to the set "drools.dialect.mvel.strict" using Drools+Spring?

by Nicolás Sanchez

Hi, I am using Drools 5.2.0.CR1 and I am using Drools+String to instantiate my drools session. I would like to know how can I set the drools.dialect.mvel.strict property using Spring. Any help would be great! -- Nicolás Sanchez

11 years, 2 months

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Guvnor - Loading enums programatically using rule metadata

by GPatel＠tsys.com

The Guvnor manual specifies how to load enum data programtically but it seems like only other fields on the same Fact can be used to filter the values that can show up in the drop-down fields, as shown below: 'Fact.field[dependentField1, dependentField2]' : '(new com.yourco.DataHelper()).getListOfAges("@{dependentField1}", "@{dependentField2}")' Is it possible to somehow use other rule attributes, like package name or rule metadata to filter the list? Something like the following: 'Fact.field[dependentField1]' : '(new com.yourco.DataHelper()).getListOfAges("@{dependentField1}", drools.getRule().getMetaData().get("ID"))' Thanks G. Patel ----------------------------------------- The information contained in this communication (including any attachments hereto) is confidential and is intended solely for the personal and confidential use of the individual or entity to whom it is addressed. If the reader of this message is not the intended recipient or an agent responsible for delivering it to the intended recipient, you are hereby notified that you have received this communication in error and that any review, dissemination, copying, or unauthorized use of this information, or the taking of any action in reliance on the contents of this information is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail, and delete the original message. Thank you

11 years, 3 months

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how to debug rules in JBoss AS?

by Marina

Hello, I know one can debug rules (put breakpoints in .drl and ruleflow files) when running/debugging an application as a Drools Application. However, I would like to debug rules when my application is running in JBoss AS - just like we do a normal debugging of a Remote application running in a different JVM ,by enabling the JDWP on the server (-Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n) and then connecting to the specified port. Basically, I would like to be able to debug both my Java classes and rules together. Is it possible? thanks, Marina

11 years, 3 months

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Fire Rule in Stateless Knowledge Session

by snehils

Hi, I am new in Drools. I am using Drools version 5.1.0 My requirement is kind of request response, where I have to perform some checks for the request and respond the result. Hence, I decided to go with stateless knowledge session. I have prepared .DRL file and it contains set of rules. When some request receives I have to identify the rule(s) belongs to that request and then fire the rule(s). I am not able to figure out how to categories the rules request wise in DRL file? Also, how to fire only those rules which belongs to the category. For example, there are three kinds of requests Rq1, Rq2 and Rq3. There are rules in DRL file: R1, R2, R3, R4 and R5. R1, R2 belongs to Rq1, R3 belongs to Rq2 and R4, R5 belongs to Rq3. When some request receives only its belonging rules should be fired. For example, on receiving of Rq2 only R3 should be fired. Please provide me some code snipped or link. Thanks -- View this message in context: http://drools.46999.n3.nabble.com/Fire-Rule-in-Stateless-Knowledge-Sessio... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 5 months

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Re: [rules-users] StatefulKnowledgeSession and multi-threaded processing

by lhorton

You might like to view this video, posted by Mauricio (Salaboy) this year, from their Drools workshop in Argentina. It's about a real (production) implementation of a very high volume, high performance Drools-based system: http://vimeo.com/27209589 http://vimeo.com/27209589 -- View this message in context: http://drools.46999.n3.nabble.com/StatefulKnowledgeSession-and-multi-thre... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 5 months

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"Rule-Id" for a Drools Rule

by harishtejwani

All: We are using Drools to detect specific events/conditions in our system. In the 'then' condition of Drools rule, we would like to persist the "Rule Id" of the rule that created the specific event/condition This is because all our reporting is based on "rules" as filters, where users can look at exceptions by specific rules. Is there a suggestion or sample as how can the "Rule Id" be persisted or indicated in the then condition that is immutable or can be long-lived. The current approach of using Rule Name itself as the ID is brittle as this can be changed and suddenly all reports would break. If we assign ID's to rules, where do we keep the mapping of RULE ID to Rules. If we store rules in GUVRNOR is there a way we can get Rule Id's for Rules? Best regards Harish Tejwani -- View this message in context: http://drools.46999.n3.nabble.com/Rule-Id-for-a-Drools-Rule-tp2914385p291... Sent from the Drools: User forum mailing list archive at Nabble.com.

11 years, 7 months

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FW: Implementation of expert system

by Binyala, Krishna Gopal IN BLR SISL

Hello, I am new to drools community... I want to develop an expert system for medical application using drools. can you please let me know how to use history data in drools... Because as far as i know we have to keep all the data in the working memory to access. How should i implement such system? Would be better if you can provide some reference to existing expert system implemented using drools. Thanks in advance. Krishna Gopal In three words I can sum up everything I've learned about life: it goes on... Important notice:This e-mail and any attachment thereto contains corporate proprietary information. If you have received it by mistake, please notify us immediately by reply e-mail and delete this e-mail and its attachments from your system. Thank You.

11 years, 10 months

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rules-users February 2012