[rules-users] how to write this rule in Excel? ---- $data: List ( ) from dataHelper.loadData(parameterMap)
Does anyone know how to write the following rules using Excel? rule 'load Data' dialect 'mvel' salience 7000 when $data: List ( ) from dataHelper.loadData(parameterMap) then insert($data) end ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Decision table accessing my own methods
You need to import the function.
for example,
import YourOtherClass
import function Classroom.hasStudent
- Original Message
From: djb
To: rules-users@lists.jboss.org
Sent: Fri, January 8, 2010 8:30:20 AM
Subject: [rules-users] Decision table accessing my own methods
Hi there,
I have been trying for hours now to get a decision table that can call my
own methods.
Lets say I've got a Classroom, and a list of 4 students.
And my rule is to not have Bill and Bob in the same classroom.
I have a method Classroom.hasStudent(String name), which will say whether
the room has Bill or Bob.
But how do I call it???
Imagine this is my decision table:
classroom: Classroom
classroom.hasStudent("$param")
Bob
Bill
How in the world do I get it to not say "no viable alternative at input
"bob" for blah blah blah"?
I've also tried classroom.hasStudent("$param") == true with no success.
Please help,
Thank you...
Daniel
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Re: [rules-users] import static class?
Yes, you can. http://java.sun.com/j2se/1.5.0/docs/guide/language/static-import.html - Original Message From: HonorGod To: rules-users@lists.jboss.org Sent: Tue, January 5, 2010 8:04:14 AM Subject: Re: [rules-users] import static class? You cannot use the constants without classname. Jane James wrote: > > Thanks, I know I can use the static constants, but I'll have to use > ClassName.CONSTANT_NAME which is a pain, I was wondering if I can do a > static import, then just refer them as CONSTANT_NAME in my rules. > > > > - Original Message > From: HonorGod > To: rules-users@lists.jboss.org > Sent: Tue, December 22, 2009 8:55:54 PM > Subject: Re: [rules-users] import static class? > > > You can definitely use your static constants in decision table or in drl > files. > > > > Jane James wrote: >> >> Can we do a import static MyClass in drools? I have a class only contains >> some constants that to be referenced in my rules, but I can't import >> static the class. I am wondering if this is supported or not. >> >> thanks >> >> >> >> >> ___ >> rules-users mailing list >> rules-users@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> > > -- > View this message in context: > http://n3.nabble.com/verifying-is-not-null-in-decision-table-tp96386p98042.html > Sent from the Drools - User 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 > > -- View this message in context: http://n3.nabble.com/verifying-is-not-null-in-decision-table-tp96386p109898.html Sent from the Drools - User 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] import static class?
Thanks, I know I can use the static constants, but I'll have to use ClassName.CONSTANT_NAME which is a pain, I was wondering if I can do a static import, then just refer them as CONSTANT_NAME in my rules. - Original Message From: HonorGod To: rules-users@lists.jboss.org Sent: Tue, December 22, 2009 8:55:54 PM Subject: Re: [rules-users] import static class? You can definitely use your static constants in decision table or in drl files. Jane James wrote: > > Can we do a import static MyClass in drools? I have a class only contains > some constants that to be referenced in my rules, but I can't import > static the class. I am wondering if this is supported or not. > > thanks > > > > > ___ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://n3.nabble.com/verifying-is-not-null-in-decision-table-tp96386p98042.html Sent from the Drools - User 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] import static class?
Can we do a import static MyClass in drools? I have a class only contains some constants that to be referenced in my rules, but I can't import static the class. I am wondering if this is supported or not. thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] call a method in web guided decision table?
Hi, I am trying to use the web guided decision table to create my rules, however, in the Action section, I couldn't call a static method from a utility class. The only option I see in the drop down is set field which is not what I wanted. Any ideas? Thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
Re: [rules-users] Guvnor 5.1.0M1 bug?
To make myself clear, here is the difference I copy and paste in a picture. - Original Message From: Jane James To: Rules Users List Sent: Tue, November 10, 2009 5:30:25 PM Subject: [rules-users] Guvnor 5.1.0M1 bug? I downloaded the Guvnor 5.1.0M1 version, but then I found out I found out I can't add more than one condition to it now. there used to be a little bracket between two conditions but now it's gone. Is it a bug or it's a feature? How am I supposed to say startDate > 11/11/2009 and start date < 11/30/2009 now? thanks ___ 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] Guvnor 5.1.0M1 bug?
I downloaded the Guvnor 5.1.0M1 version, but then I found out I found out I can't add more than one condition to it now. there used to be a little bracket between two conditions but now it's gone. Is it a bug or it's a feature? How am I supposed to say startDate > 11/11/2009 and start date < 11/30/2009 now? thanks ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] import static function with varargs as one of the parameters doesn't work?
Hi guys,
I have a question regarding the import function feature in Drools 5.1.0M.
I am reading the Drools JBoss Rules 5.0 book Developer's guide by Michal
Bali and tried one of the examples but somehow I couldn't get my rules work
with the method that has varargs.
Here's what I have (copied from page 123):
public class ValidationHelper {
public static void error (RuleContext kcontext, Object... context) {
KnowledgeRuntime knowledgeRuntime = kcontext.getKnowledgeRuntime();
ValidationReport validationReport =
(ValidationReport)knowledgeRuntime.getGlobal("validationReport");
ReportFactory reportFactory = (ReportFactory)
knowledgeRuntime.getGlobal("reportFactory");
kcontext.insertLogical(reportFactory.createMessage(
Message.Type.ERROR, kcontext.getRule().getName(),
context));
}
}
then in my drools file (copied from page 42):
i have
import org.drools.runtime.rule.RuleContext;
import function ValidationHelper.error;
...
rule test
when
#condition
then
error(drools)
but when I ran the test, I got error message:
Exception in thread "main" org.drools.runtime.rule.ConsequenceException:
[Error: unable to resolve method:
ValidationHelper.error(org.drools.base.DefaultKnowledgeHelper) [arglength=1]]
If I remove the parameter Object... context, then everything worked. But I do
need the varargs here because I need my error message to be more specific.
Did anyone else encounter the same problems?
thanks!
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[rules-users] jboss 4.05GA and drools 5.1.0M1?
Hi guys, Sorry for posting this problem here again, but I've been searching up and down for solutions and the only solution I found online doesn't work for me. So my problem is when I tried to integrate drools into my application which is using jboss 4.05GA, I got the following error after I added the eclipse JDT core jar to the classpath. java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.CompilationResult.getProblems()[Lorg/eclipse/jdt/core/compiler/IProblem; at org.apache.jasper.compiler.JDTCompiler$2.acceptResult(JDTCompiler.java:345) I tried the solution on http://www.jboss.org/community/wiki/RulesTomcat --> I set -Ddrools.compiler=JANINO in my jboss server startup script, changed my java code to use JANINO dialect, but I am still getting the same error, and if I remove the JDT core jar, I get org.drools.RuntimeDroolsException: Unable to load dialect 'org.drools.rule.builder.dialect.java.JavaDialectConfiguration:java:org.dro ols.rule.builder.dialect.java.JavaDialectConfiguration'^M at org.drools.compiler.PackageBuilderConfiguration.addDialect(PackageBuilderConfiguration.java:274)^M People's mentioning that the solution worked, so am I missing something here? Thanks a lot! ___ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
[rules-users] Guvnor and collections.
Hi, All,
I have a similar questions to Jame's question.
I have a list of Strings which is wrapped in a class called Names, and
what I want to get is to find all the elements that's equal to
"targetStringname".
How do I create a rule using guided rule editor in Guvnor to create a rule
which looks like the following? (Our system requires users to be able to
create their own rules and I doubt that the users will know how to write rules
like the following).
when
$name: Names( )
$foundThese: ArrayList (size >0) from collect (String (this matches
"targetname" ) from $name.names)
then
System.out.println("something happened here");
public class Names {
private List name = new ArrayList();
}
Thanks a bunch!
From: "Nord, James"
To: rules-users@lists.jboss.org
Sent: Tue, October 6, 2009 8:48:46 AM
Subject: [rules-users] Guvnor test scenarios and collections.
Hi
all,
One of our facts has
a collection which the rules add to.
I'm trying to write
a test scenrio to cover the simple case where the fact with an empty collection
runs through and ends up containing a value "default".
However I can't work
out how to get Guvnor to do this. I am presented with fact.blah and then
"equals" or "does not equal" but no contains or does not
contain.
I have tried the
MVEL syntax of [default] but this complains that the expectation fails as:
"[myFact] field [myCollection] was
[[DEFAULT]] expected [[DEFAULT]]."
Is there any any way to do
this?
Regards,
/James
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