Sorry!! I mixed the .class and. java files!! ;)
Here is the source code. I also paste the code I am using to read the rule
package:
public RuleBase readRulePackage() throws PersistenceException{
// Reads a set of rules from XML file
try {
PackageBuilder builder = new PackageBuilder();
builder.addPackageFromXml(new InputStreamReader(new
FileInputStream(ruleFile)));
ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage(builder.getPackage());
return ruleBase;
} catch (Exception e){
e.printStackTrace();
throw new PersistenceException("Error reading rules file");
}
}
thx!
Hi isabelle,
When I said instance class, I was meaning your instance source code ;)
Regards
On 9/28/07, Isabelle Hupont <ihupont(a)ita.es> wrote:
>
>
> Hi Fernando!
>
> Mi Instance class is the Weka class I attach....
> Thanks for your attention.
> Isabelle.
>
http://www.nabble.com/file/p12935480/Instance.class Instance.class
>
>
>
> Fernando Meyer Camargo wrote:
> >
> > Could you please provide your Instance class ?
> >
> >
> > On 9/27/07, Isabelle Hupont <ihupont(a)ita.es> wrote:
> >>
> >>
> >> Hi!
> >>
> >> I want to program the following drl rule in xml:
> >>
> >> rule "average calculation"
> >> no-loop true
> >> when
> >> _i : Instance()
> >> _average : Double()
> >> from accumulate(accInst: Instance(),
> >> average(
> >> accInst.value("tend")))
> >> eval(_average < 20000)
> >> then
> >> _i.setValue("tend",2000);
> >> end
> >>
> >>
> >> For it, I have implemented the following xml file:
> >>
> >> <?xml version="1.0" encoding="UTF-8"?>
> >> <package name="org.prophet.fuzzy"
xmlns="http://drools.org/drools-4.0"
> >>
xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
> >>
xs:schemaLocation="http://drools.org/drools-4.0
drools-4.0.xsd">
> >> <import name="weka.core.*"/>
> >> <import name="org.prophet.gui.docking.*"/>
> >> <import name="org.prophet.persistence.*"/>
> >> <import name="org.prophet.persistence.hibernate.*"/>
> >> <import name="org.prophet.rules.*"/>
> >> <import name="org.prophet.*"/>
> >> <rule name="Rule1">
> >> <rule-attribute name="no-loop"
value="true"/>
> >> <lhs>
> >> <pattern identifier="_i"
object-type="Instance"/>
> >> <pattern identifier="_average"
object-type="Double">
> >> <from>
> >> <accumulate>
> >> <pattern identifier="accInst"
> >> object-type="Instance"/>
> >> <external-function evaluator="average"
> >> expression="accInst.value("tend")"/>
> >> </accumulate>
> >> </from>
> >> </pattern>
> >> <eval>_average < 20000.0</eval>
> >> </lhs>
> >> <rhs>
> >> _i.setValue("tend", 2000.0); manageRuleFired("Rule1",
null, _i);
> >> modify(_i);</rhs>
> >> </rule>
> >> </package>
> >>
> >> And I have the following error when reading the rule package:
> >>
> >> org.drools.rule.InvalidRulePackage: Rule Compilation error _average
> >> cannot
> >> be resolved _i cannot be resolved _i cannot be resolved _i__Handle__
> >> cannot
> >> be resolved _i cannot be resolved
> >>
> >>
> >> I also have tried to replace the xml identifier <pattern> by
<column>
> >> with
> >> no result. Can you help me, please?
> >>
> >>
> >> --
> >> View this message in context:
> >>
>
http://www.nabble.com/accumulate-funtion-in-xml-tf4526879.html#a12916380
> >> Sent from the drools - user mailing list archive at
Nabble.com.
> >>
> >> _______________________________________________
> >> rules-users mailing list
> >> rules-users(a)lists.jboss.org
> >>
https://lists.jboss.org/mailman/listinfo/rules-users
> >>
> >
> >
> >
> > --
> > Fernando Meyer
http://fmeyer.org
> > JBoss Rules Core Developer
> > fmcamargo(a)gmail.com
> >
> > _______________________________________________
> > rules-users mailing list
> > rules-users(a)lists.jboss.org
> >
https://lists.jboss.org/mailman/listinfo/rules-users
> >
> >
>
> --
> View this message in context:
>
http://www.nabble.com/accumulate-funtion-in-xml-tf4526879.html#a12935480
> Sent from the drools - user mailing list archive at
Nabble.com.
>
> _______________________________________________
> rules-users mailing list
> rules-users(a)lists.jboss.org
>
https://lists.jboss.org/mailman/listinfo/rules-users
>
--
Fernando Meyer
http://fmeyer.org
JBoss Rules Core Developer
fmcamargo(a)gmail.com
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