[rules-users] accumulate funtion in xml
Fernando Meyer
fmcamargo at gmail.com
Fri Sep 28 11:58:36 EDT 2007
Hi Isabelle,
I didn't paid enough attention to your rhs block :)
You are welcome and tks for your feedbak.
On 9/28/07, Isabelle Hupont <ihupont at ita.es> wrote:
>
>
> Hi Fernando!!
>
> I have fixed the problem... I didn't changed drools v3 modify(_i)
> statement
> by drools v4 update(-i).
> Now everything works well!
> Thanks a lot for your attention.
>
>
>
>
> Isabelle Hupont wrote:
> >
> > 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! http://www.nabble.com/file/p12935779/Instance.java Instance.java
> >
> >
> > Fernando Meyer Camargo wrote:
> >>
> >> Hi isabelle,
> >>
> >> When I said instance class, I was meaning your instance source code ;)
> >>
> >> Regards
> >>
> >> On 9/28/07, Isabelle Hupont <ihupont at 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 at 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 at lists.jboss.org
> >>> >> https://lists.jboss.org/mailman/listinfo/rules-users
> >>> >>
> >>> >
> >>> >
> >>> >
> >>> > --
> >>> > Fernando Meyer http://fmeyer.org
> >>> > JBoss Rules Core Developer
> >>> > fmcamargo at gmail.com
> >>> >
> >>> > _______________________________________________
> >>> > rules-users mailing list
> >>> > rules-users at 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 at lists.jboss.org
> >>> https://lists.jboss.org/mailman/listinfo/rules-users
> >>>
> >>
> >>
> >>
> >> --
> >> Fernando Meyer http://fmeyer.org
> >> JBoss Rules Core Developer
> >> fmcamargo at gmail.com
> >>
> >> _______________________________________________
> >> rules-users mailing list
> >> rules-users at 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#a12938379
> Sent from the drools - user mailing list archive at Nabble.com.
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
--
Fernando Meyer http://fmeyer.org
JBoss Rules Core Developer
fmcamargo at gmail.com
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