Re: [rules-users] Rule not compiling in IDE after migration to 5.2
Is it possible for you to provide a self contained repository export demonstrating the issue? sent on the move On 19 Jul 2011 23:01, Jamie js...@llbean.com wrote: I do mean Eclipse. What do you mean by 'vanilla DRL'? It does seem to compile and run correctly when I deploy it. -- View this message in context: http://drools.46999.n3.nabble.com/Rule-not-compiling-in-IDE-after-migration-to-5-2-tp3183689p3183863.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Drools Integration for which Camel Version?
spring version 3.0.5 -- View this message in context: http://drools.46999.n3.nabble.com/Drools-Integration-for-which-Camel-Version-tp3182385p3184752.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Rule not compiling in IDE after migration to 5.2
On 19 July 2011 22:52, Jamie js...@llbean.com wrote: This rule used to compile in the IDE under Drools 5.1.1: when $order: OrderFact(numberOfCreditCardDeclines FraudCCDeclines.find().getCreditCardDeclinesThreshold()) For Drools 5.1.1, this is syntactically incorrect. All but very simple expressions on the right hand side of a comparison operator must be enclosed in parentheses. A simple literal is one of the forms that are acceptable without parentheses. 5.2.0 is much more tolerant. -W then //do something but it's breaking since I moved to 5.2, although it runs fine when I deploy it to the server. Any idea why? If I make the comparison static, like this: when $order: OrderFact(numberOfCreditCardDeclines 5) then //do something It also works fine. What's wrong? -- View this message in context: http://drools.46999.n3.nabble.com/Rule-not-compiling-in-IDE-after-migration-to-5-2-tp3183689p3183689.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] [Drools4]: Filter executed rules by *.drl file
Thanks for your answers. The context fact thing would work, but it is really polluting the rules and makes a lot of unnecessary constraint checks. Furthermore the extends is not implemented in Drools 4 or I am blind (maybe it would be a good idea to switch to drools 5 anyway...). So I think I will go with the one drl per rulebase solution. @manstis: Could you explain why you think the control fact solution is better? -- View this message in context: http://drools.46999.n3.nabble.com/Drools4-Filter-executed-rules-by-drl-file-tp3182568p3184864.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Unexpected variable binding behavior and conditional logic
You are using 5.2.0?
I don't think that the *greatly simplified* version of your problem fails
the way you described.
However: https://issues.jboss.org/browse/JBRULES-3111 describes a very
similar issue, a severe regression from 5.1.1.
-W
On 19 July 2011 20:59, ChrisG cgib...@excite.com wrote:
Apologies if this has been addressed elsewhere: I couldn't find anything
quite like my issue.
My (greatly simplified and completely made-up) example:
Let's say I have this java class:
public class BaseballPitcher
{
public String getName();
public boolean isRightHanded();
public boolean isKnuckleBaller();
}
Multiple instances of this class are created with a variety of combinations
for the name and two boolean parameters.
Now I have a rule:
rule Match pitchers: righties or knuckle-ballers
when
$kbPitcher1 : BaseballPitcher($name: name, $righty: rightHanded == true
||
$knuckleballer: knuckleBaller == true)
$kbPitcher2: BaseballPitcher(name != $name, rightHanded == $righty,
knuckleBaller == $knuckleballer)
then
// Do something with these two pitchers $kbPitcher1 and $kbPitcher2
end
I am getting the curious result that this rule fires its conclusion when
$kbPitcher1 is in fact NEITHER right-handed nor a knuckle-baller (i.e.
rightHanded == false knuckleBaller == false).
I've worked around this by changing the first condition in either of the
following two ways:
*// eval() the condition*
$kbPitcher1 : BaseballPitcher($name: name, $righty: rightHanded,
$knuckleballer: knuckleBaller,
*eval(isRightHanded() == true || isKnuckleBaller() == true)*)
...or
*// bind the variables before checking values*
$kbPitcher1 : BaseballPitcher($name: name, $righty: rightHanded,
$knuckleballer: knuckleBaller,
*rightHanded == true || knuckleBaller == true*)
Does this make sense? Both are easy workarounds, and I believe the second
option (i.e. the one NOT using the eval) is the better solution from a
performance perspective, allowing the engine to index the these facts
rather
than dynamically evaluate the condition every time.
But I'm a little surprised the first approach didn't work. Any ideas why
not?
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Re: [rules-users] [Drools4]: Filter executed rules by *.drl file
It was just a feeling, but Vincent's words from (presumably) experience gives the individual rulebase option more credence. On 20 July 2011 09:29, magendo robert.heisenb...@yahoo.com wrote: Thanks for your answers. The context fact thing would work, but it is really polluting the rules and makes a lot of unnecessary constraint checks. Furthermore the extends is not implemented in Drools 4 or I am blind (maybe it would be a good idea to switch to drools 5 anyway...). So I think I will go with the one drl per rulebase solution. @manstis: Could you explain why you think the control fact solution is better? -- View this message in context: http://drools.46999.n3.nabble.com/Drools4-Filter-executed-rules-by-drl-file-tp3182568p3184864.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] [Drools4]: Filter executed rules by *.drl file
Control facts could be a good solution if a execution (of rules) can use some multiple DRL, and if you are using a lot of facts. For example, if you want to do DRL1 and then DRL5 (because of some logic) on the same facts, in that order, you can add control rules to your KB that set/update the Context fact according to some conditions. Note that you can do the same with multiple KB, but then you have to re-insert the objects from one session to another (but it is not so complex, nor so costly). But for the number of DRL you have, I really think that cutting them in KB will be better. Moreover you can implement a big chief controller, that stores the KB in a map, lazily complied when needed. This way, you may not have the whole 300 KB in memory ... And you can even distribute the KB in distributed Agents, and implement the big chief controller with drools (with fusion?) to store some logic about launching the suitable KB according to the event you get, or chain KB, or whatever you can imagine. - Mail original - De: Michael Anstis michael.ans...@gmail.com À: Rules Users List rules-users@lists.jboss.org Envoyé: Mercredi 20 Juillet 2011 11:32:12 Objet: Re: [rules-users] [Drools4]: Filter executed rules by *.drl file It was just a feeling, but Vincent's words from (presumably) experience gives the individual rulebase option more credence. On 20 July 2011 09:29, magendo robert.heisenb...@yahoo.com wrote: Thanks for your answers. The context fact thing would work, but it is really polluting the rules and makes a lot of unnecessary constraint checks. Furthermore the extends is not implemented in Drools 4 or I am blind (maybe it would be a good idea to switch to drools 5 anyway...). So I think I will go with the one drl per rulebase solution. @manstis: Could you explain why you think the control fact solution is better? -- View this message in context: http://drools.46999.n3.nabble.com/Drools4-Filter-executed-rules-by-drl-file-tp3182568p3184864.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] accumlator and BigDecimal
I'm trying to create an accumulator to sum a BigDecimal. Here's what I wrote: $upcharge : BigDecimal( ) from accumulate( GroupUpcharges( row$gb.row row=$gu.row, $value : upcharge), init( BigDecimal total = BigDecimal.ZERO; ), action( total=total.add($value); ), reverse( total=total.subtract($value); ), result( total ) ) $gb and $gu are set earlier in the WHEN clause. When I run this, it compiles successfully, but then flows up at run time with a null pointer exception. What am I doing wrong? -- View this message in context: http://drools.46999.n3.nabble.com/accumlator-and-BigDecimal-tp3185872p3185872.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Problem with running examples from drools-distribution-5.2.0
Dear all, I try to run the examples given in http://download.jboss.org/drools/release/5.2.0.Final/drools-distribution-5.2.0.Final.zip (Drools 5.2.0 final downloads) I've installed the plugin and the example as given in ReadMeDrools.txt Nevertheless, I get many Eclipse errors (1913) and cannot run the example. For example, the first error is DescriptionResource Path Location Type [ERR 102] Line 56:49 mismatched input '' expecting ')' in rule Free Fish Food Sample PetStore.drl /drools-examples/src/main/resources/org/drools/examples/petstore line 56 Drools Error If I run the example despite the errors, I get the message Could not find the main class: org.drools.examples.DroosExamplesApp. Program will exit. What could I do? Thanks, Ulrich -- Eclipse Java EE IDE for Web Developers. Version: Indigo Release Build id: 20110615-0604 (c) Copyright Eclipse contributors and others 2005, 2011. All rights reserved. Visit http://www.eclipse.org/webtools -- Graphical Editing Framework GEF 3.7.0.v20110425-2050-777D-81B2Bz0685C3A6E34272 org.eclipse.gef.feature.groupEclipse Modeling Project Graphical Editing Framework Draw2d 3.7.0.v20110425-2050-46-7w3122153603161 org.eclipse.draw2d.feature.groupEclipse Modeling Project JBoss Drools Core 5.2.0.v20110116-0638-H14 org.drools.eclipse.feature.feature.group JBoss by Red Hat JBoss Drools Guvnor 5.2.0.v20110116-0638-H14 org.guvnor.tools.feature.feature.groupJBoss by Red Hat JBoss Drools Task 5.2.0.v20110116-0638-H14 org.drools.eclipse.task.feature.feature.groupJBoss by Red Hat -- ... SEEBURGER AGVorstand/Seeburger Executive Board: Sitz der Gesellschaft/Registered Office:Bernd Seeburger, Axel Haas, Michael Kleeberg Edisonstr. 1 D-75015 Bretten Vorsitzender des Aufsichtsrats/Chairperson of the Seeburger Supervisory Board: Tel.: 07252 / 96 - 0Dr. Franz Scherer Fax: 07252 / 96 - Internet: http://www.seeburger.de Registergericht/Commercial Register: e-mail: i...@seeburger.de HRB 240708 Mannheim Dieses E-Mail ist nur f?r den Empf?nger bestimmt, an den es gerichtet ist und kann vertrauliches bzw. unter das Berufsgeheimnis fallendes Material enthalten. Jegliche darin enthaltene Ansicht oder Meinungs?u?erung ist die des Autors und stellt nicht notwendigerweise die Ansicht oder Meinung der SEEBURGER AG dar. Sind Sie nicht der Empf?nger, so haben Sie diese E-Mail irrt?mlich erhalten und jegliche Verwendung, Ver?ffentlichung, Weiterleitung, Abschrift oder jeglicher Druck dieser E-Mail ist strengstens untersagt. Weder die SEEBURGER AG noch der Absender ( Scholz. Ulrich ) ?bernehmen die Haftung f?r Viren; es obliegt Ihrer Verantwortung, die E-Mail und deren Anh?nge auf Viren zu pr?fen. The present email addresses only the addressee which it targets and may contain confidential material that may be protected by the professional secret. The opinions reflected herein are not necessarily the one of the SEEBURGER AG. If you are not the addressee, you have accidentally got this email and are not enabled to use, publish, forward, copy or print it in any way. Neither SEEBURGER AG , nor the sender (Scholz. Ulrich) are liable for viruses, being your own responsibility to check this email and its attachments for this purpose. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Problem with running examples from drools-distribution-5.2.0
The logical and between *patterns* cannot be written as '' any more. Replace it with 'and'. -W 2011/7/20 Scholz. Ulrich u.sch...@seeburger.de Dear all, I try to run the examples given in http://download.jboss.org/drools/release/5.2.0.Final/drools-distribution-5.2.0.Final.zip(Drools 5.2.0 final downloads) I’ve installed the plugin and the example as given in ReadMeDrools.txt Nevertheless, I get many Eclipse errors (1913) and cannot run the example. For example, the first error is DescriptionResource Path Location Type [ERR 102] Line 56:49 mismatched input '' expecting ')' in rule Free Fish Food Sample PetStore.drl /drools-examples/src/main/resources/org/drools/examples/petstore line 56 Drools Error If I run the example despite the errors, I get the message “Could not find the main class: org.drools.examples.DroosExamplesApp. Program will exit.” What could I do? Thanks, Ulrich -- Eclipse Java EE IDE for Web Developers. Version: Indigo Release Build id: 20110615-0604 (c) Copyright Eclipse contributors and others 2005, 2011. All rights reserved. Visit http://www.eclipse.org/webtools -- Graphical Editing Framework GEF 3.7.0.v20110425-2050-777D-81B2Bz0685C3A6E34272 org.eclipse.gef.feature.groupEclipse Modeling Project Graphical Editing Framework Draw2d 3.7.0.v20110425-2050-46-7w3122153603161 org.eclipse.draw2d.feature.groupEclipse Modeling Project JBoss Drools Core 5.2.0.v20110116-0638-H14 org.drools.eclipse.feature.feature.group JBoss by Red Hat JBoss Drools Guvnor 5.2.0.v20110116-0638-H14 org.guvnor.tools.feature.feature.groupJBoss by Red Hat JBoss Drools Task 5.2.0.v20110116-0638-H14 org.drools.eclipse.task.feature.feature.groupJBoss by Red Hat -- ... *SEEBURGER AG* Vorstand/Seeburger Executive Board: Sitz der Gesellschaft/Registered Office: Bernd Seeburger, Axel Haas, Michael Kleeberg Edisonstr. 1D-75015 Bretten Vorsitzender des Aufsichtsrats/Chairperson of the Seeburger Supervisory Board: Tel.: 07252 / 96 - 0 Dr. Franz Scherer Fax: 07252 / 96 - Internet: http://www.seeburger.de Registergericht/Commercial Register: e-mail: i...@seeburger.de HRB 240708 Mannheim Dieses E-Mail ist nur für den Empfänger bestimmt, an den es gerichtet ist und kann vertrauliches bzw. unter das Berufsgeheimnis fallendes Material enthalten. Jegliche darin enthaltene Ansicht oder Meinungsäußerung ist die des Autors und stellt nicht notwendigerweise die Ansicht oder Meinung der SEEBURGER AG dar. Sind Sie nicht der Empfänger, so haben Sie diese E-Mail irrtümlich erhalten und jegliche Verwendung, Veröffentlichung, Weiterleitung, Abschrift oder jeglicher Druck dieser E-Mail ist strengstens untersagt. Weder die SEEBURGER AG noch der Absender ( Scholz. Ulrich ) übernehmen die Haftung für Viren; es obliegt Ihrer Verantwortung, die E-Mail und deren Anhänge auf Viren zu prüfen. The present email addresses only the addressee which it targets and may contain confidential material that may be protected by the professional secret. The opinions reflected herein are not necessarily the one of the SEEBURGER AG. If you are not the addressee, you have accidentally got this email and are not enabled to use, publish, forward, copy or print it in any way. Neither SEEBURGER AG , nor the sender (Scholz. Ulrich) are liable for viruses, being your own responsibility to check this email and its attachments for this purpose. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] accumlator and BigDecimal
Stack dump? Version? Is $gb.row and $gu.row not null? Is upcharge in all selected GroupUpcharges not null? -W On 20 July 2011 18:20, mjohansen mjohan...@lazboy.com wrote: I'm trying to create an accumulator to sum a BigDecimal. Here's what I wrote: $upcharge : BigDecimal( ) from accumulate( GroupUpcharges( row$gb.row row=$gu.row, $value : upcharge), init( BigDecimal total = BigDecimal.ZERO; ), action( total=total.add($value); ), reverse( total=total.subtract($value); ), result( total ) ) $gb and $gu are set earlier in the WHEN clause. When I run this, it compiles successfully, but then flows up at run time with a null pointer exception. What am I doing wrong? -- View this message in context: http://drools.46999.n3.nabble.com/accumlator-and-BigDecimal-tp3185872p3185872.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Rule not compiling in IDE after migration to 5.2
Thanks for pointing that out, Wolfgang. I had stripped out some parentheses
during some testing. We had them there in the 5.1.1 version. They don't
seem to make a difference in 5.2.0 for the cases I've been working with.
In an attempt to create something stand-alone that I could share in response
to Manstis's reply, I found something very interesting. It appears that the
trouble stems from a static initialization in one of the called classes that
retrieves a string value from a property file and parses it into an int. I
was able to recreate the issue with a very simple example. It doesn't even
matter if you refer to the variable in your code. Here's are the classes:
package com.test;
import java.util.ResourceBundle;
public class RuleTest {
private static ResourceBundle resourceBundle =
ResourceBundle.getBundle(some file);
public static String getSomeValue() {
return some value;
}
}
package com.test;
public class TestFact {
public int getSomeValue() {
return 17;
}
}
and here's the rule:
package com.test
rule Test Rule
when
$testFact: TestFact(someValue (RuleTest.getSomeValue()));
then
//Do something useful
end
If you remove the 'static' modifier from the resourceBundle variable
declaration above, the rule compiles fine in the IDE. Note that it executes
fine with or without the static modifier when deployed.
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[rules-users] How to write rules with optional parts?
How do you do rules that are a sequence of events where some of them are optional? Example: Alert if DAVID enters a room after ALICE or after ALICE and BOB If it were a string, this is roughly equivalant to the regex /ALICE( BOB)? DAVID/ So: Alice then David = alert Alice then Bob then David = alert Alice then Charles then David = no alert I could write this as two rules but as the rules get more complex it could by hard to manage the resulting combatorial explosion. Here it is as two rules: Rule 1: $p1:person (name==Alice) $p2:person (name==David, this after[0,1] $p1) Rule 2: $p1:person (name==Alice) $p2:person (name==Bob, this after[0,1] $p1) $p3:person (name==David, this after[0,1] $p2) ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Globals from functions...
I have a global defined and I am trying to use it from a function. When my
rule gets loaded into my knowledge base, I always get an error complaining
about the global not being resolved.
simplified snippet
global int x;
function void foo(int n) {
x = n;
}
--
I get this kind of error Function Compilation error: foo (line:20) x can
not resolved.
Should this work?
TIA,
Bob
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Re: [rules-users] Globals from functions...
Do not know if this helps or explains but I found this in the documentation in section 5.5.2 http://docs.jboss.org/drools/release/5.2.0.Final/drools-expert-docs/html/ch05.html#d0e3313 here . From the document: /Globals are not designed to share data between rules and they should never be used for that purpose. Rules always reason and react to the working memory state, so if you want to pass data from rule to rule, assert the data as facts into the working memory. It is strongly discouraged to set or change a global value from inside your rules. We recommend to you always set the value from your application using the working memory interface./ How I read that is prolly not... However, I am not entirely sure I understand why you are doing what you are doing... Hope it points you in the direction of your solution... -- View this message in context: http://drools.46999.n3.nabble.com/Globals-from-functions-tp3186882p3187034.html Sent from the Drools: User forum mailing list archive at Nabble.com. ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
