[rules-users] Please help me to fix the AgendaFilter related issue

[Wolfgang Laun]

This is the way to implement an AgendaFilter so that you can use it with
ksession.fireAllRules

import org.drools.runtime.rule.Activation;
import org.drools.runtime.rule.AgendaFilter;

public class MySimpleFilter implements AgendaFilter {
   // ... constructor etc.

   public boolean accept(Activation item) {
         return true; // change this, using constructor arguments ...
    }
 }

AgendaFilter  mySimplefilter = new MySimpleFilter(...);
session.fireAllRules( mySimplefilter );

Through Activation you get at the rule and the rule name, and your accept
method can be more sophisticated.

-W


2010/8/23 Sanjib Karmakar <SanjibK at skytechsolutions.co.in>

>
> Sir
>
> I have modified according to your suggestion but still I am getting the
> same error.
>
> Regards
> Sanjib Karmakar
> SkyTech Solutions Pvt. Ltd
>
> Please consider the environment before printing this email.
>
>
>  *Wolfgang Laun <wolfgang.laun at gmail.com>*
> Sent by: rules-users-bounces at lists.jboss.org
>
> 08/23/2010 06:15 PM
>  Please respond to
> Rules Users List <rules-users at lists.jboss.org>
>
>   To
> Rules Users List <rules-users at lists.jboss.org>
> cc
>   Subject
> Re: [rules-users] Please help me to fix the AgendaFilter related
>  issue
>
>
>
>
> The error message says Stateful*Rule*Session, but I'd say you have a
> Stateful*Knowledge*Session ksession.
>
> Do a cast:
>    org.drools.runtime.rule.StatefulRuleSession sfrs =
> (org.drools.runtime.rule.StatefulRuleSession)ksession;
> and use this one for firing all rules with an agenda filter.
>
> -W
>
>
> On 23 August 2010 14:32, Sanjib Karmakar <*sanjibk at skytechsolutions.co.in*<sanjibk at skytechsolutions.co.in>>
> wrote:
>
> import org.drools.runtime.StatefulKnowledgeSession;
> import org.drools.spi.Activation;
> import org.drools.spi.AgendaFilter;
>
>
> .
> .
> .
>
>   KnowledgeBuilder kbuilder =
> KnowledgeBuilderFactory.newKnowledgeBuilder();
>   kbuilder.add(
>                ResourceFactory.newClassPathResource(resourceIndicator),
>                ResourceType.XDRL
>              );
>   KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
>   kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
> .
> .
> .
>
>   public Object getSpecificRuleReport(
>                                Object requestDTO,
>                                Object responseDTO,
>                                final String ruleAry[]
>                                 )
>   throws Exception
>   {
>      AgendaFilter agendafilter =
>            new StatefulKnowledgeSessionImpl.AgendaFilterWrapper(null)
>        {
>            public boolean accept(Activation activation)
>            {
>               boolean returnFlag = false;
>               int ruleArySize = ruleAry.length;
>
>                    for (int cnt=0; cnt<ruleArySize; cnt++)
>                 {
>                if (activation.getRule().getName().equals(ruleAry[cnt]))
>                        returnFlag =  false;
>                else
>                        returnFlag =  true;
>                 }
>
>                return returnFlag;
>            }
>        };
>
>        try
>         {
>            ksession.insert(requestDTO);
>            ksession.insert(responseDTO);
>            ksession.fireAllRules(agendafilter);
>         }catch(Exception t)
>          {
>             _logger.error(t.getMessage()+"\n"+t);
>          }
>
>        return responseDTO;
>     }
>
> Eclipse is showing that there is a method fireAllRules() which takes
> AgendaFilter as a parameter
> but I am getting error "The method fireAllRules(int) in the type
> StatefulRuleSession is not applicable for the arguments (AgendaFilter)" at
> 'ksession.fireAllRules(agendafilter);'
>
> I am trying to execute specific rules out of set of rules. Please help me
> to
> fix this issue.
>
>
> --
> View this message in context: *
> http://drools-java-rules-engine.46999.n3.nabble.com/Please-help-me-to-fix-the-AgendaFilter-related-issue-tp1289855p1289855.html
> *<http://drools-java-rules-engine.46999.n3.nabble.com/Please-help-me-to-fix-the-AgendaFilter-related-issue-tp1289855p1289855.html>
> Sent from the Drools - User mailing list archive at Nabble.com.
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