Re: [rules-users] Error selecting order decrease [planner]

Monday, 28 January 2013

this is the full drl file:

------------

package com.swa.planner.domain.rule;

import
org.drools.planner.core.score.buildin.hardandsoft.HardAndSoftScoreHolder;
import org.drools.planner.core.score.constraint.IntConstraintOccurrence;
import org.drools.planner.core.score.constraint.ConstraintType;

import com.swa.planner.domain.CloudBalance;
import com.swa.planner.domain.CloudComputer;
import com.swa.planner.domain.CloudProcess;

global HardAndSoftScoreHolder scoreHolder;

rule "requiredCpuPowerTotal"
when
$computer : CloudComputer($cpuPower : cpuPower)
$requiredCpuPowerTotal : Number(intValue > $cpuPower) from accumulate(
CloudProcess (
computer == $computer,
$requiredCpuPower : requiredCpuPower),
sum($requiredCpuPower)
)
then
insertLogical(new IntConstraintOccurrence("requiredCpuPowerTotal",
ConstraintType.NEGATIVE_HARD,
$requiredCpuPowerTotal.intValue() - $cpuPower,
$computer));
end

rule "requiredMemoryTotal"
when
$computer : CloudComputer($memory : memory)
$requiredMemoryTotal : Number(intValue > $memory) from accumulate(
CloudProcess (
computer == $computer,
$requiredMemory : requiredMemory),
sum($requiredMemory)
)
then
insertLogical(new IntConstraintOccurrence("requiredMemoryTotal",
ConstraintType.NEGATIVE_HARD,
$requiredMemoryTotal.intValue() - $memory,
$computer));
end

rule "requiredNetworkBandwidth"
when
$computer : CloudComputer($networkBandwidth : networkBandwidth)
$requiredNetworkBandwidthTotal : Number(intValue > $networkBandwidth) from
accumulate(
CloudProcess (
computer == $computer,
$requiredNetworkBandwidth : requiredNetworkBandwidth)
sum($requiredNetworkBandwidth)
)
then
insertLogical(new IntConstraintOccurrence("requiredNetworkBandwidth",
ConstraintType.NEGATIVE_HARD,
$requiredNetworkBandwidthTotal.intValue() - $networkBandwidth,
$computer));
end

rule "hardConstraintBroken"
salience -1
when
$hardTotal : Number() from accumulate(
IntConstraintOccurrence(constraintType == ConstraintType.NEGATIVE_HARD,
$weight : weight)
sum($weight)
)
then
scoreHolder.setHardConstraintsBroken($hardTotal.intValue());
end

// Soft constraint

rule "computerCost"
when
$computer : CloudComputer($cost : cost)
exists CloudProcess(computer == $computer)
then
insertLogical(new IntConstraintOccurrence("computerCost",
ConstraintType.NEGATIVE_SOFT,
$cost,
$computer));
end

rule "softConstraintBroken"
salience -1
when
$softTotal : Number() from accumulate(
IntConstraintOccurrence(ConstraintType == ConstraintType.NEGATIVE_SOFT,
$weight : weight)
sum($weight)
)
then
scoreHolder.setHardConstraintsBroken($softTotal.intValue());
end

2013/1/28 Geoffrey De Smet <ge0ffrey.spam(a)gmail.com&gt;

...

com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.defaultConsequence(Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.java:14)

 What's in the then side of Rule_requiredCpuPowerTotal ?

  Op 28-01-13 16:00, André Fróes schreef:

 Even adding that, the error still

  --------------
  12:57:41.050 [main] INFO  o.d.p.core.solver.DefaultSolver - Solving
 started: time spend (152), score (null), new best score (null), random seed
 (0).
 Exception in thread "main" Exception executing consequence for rule
 "requiredCpuPowerTotal" in com.swa.planner.domain.rule:
 java.lang.NullPointerException
  at

org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
  at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
  at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
  at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
  at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
  at
 org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
  at

org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)
  at

org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)
  at

org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)
  at

org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)
  at

org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)
  at

org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)
  at

org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)
  at
 org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)
  at
 org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)
  at com.swa.planner.domain.CloudTest.main(CloudTest.java:67)
 Caused by: java.lang.NullPointerException
  at java.lang.String.<init>(Unknown Source)
  at org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)
  at
 org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)
  at
 org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)
  at org.mvel2.MVEL.compileExpression(MVEL.java:810)
  at
 org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)
  at

org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)
  at

org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
  at
 org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
  at
 org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)
  at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)
  at

org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
  at

org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
  at org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
  at org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
  at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
  at
 org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)
  at

org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)
  at

org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)
  at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)
  at
 org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
  at
 org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)
  at
 org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)
  at
 org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)
  at

com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.defaultConsequence(Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987.java:14)
  at

com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987DefaultConsequenceInvokerGenerated.evaluate(Unknown
 Source)
  at

com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_0a10acbeca924206a3becab080617987DefaultConsequenceInvoker.evaluate(Unknown
 Source)
  at
 org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
  ... 14 more

  --------------

  I added to cloudprocess computer variable:
 --------------
  package com.swa.planner.domain;

  import org.drools.planner.api.domain.entity.PlanningEntity;
 import org.drools.planner.api.domain.variable.PlanningVariable;
 import org.drools.planner.api.domain.variable.ValueRange;
 import org.drools.planner.api.domain.variable.ValueRangeType;
 import org.drools.planner.examples.common.domain.AbstractPersistable;

  @PlanningEntity(difficultyComparatorClass =
 CloudProcessDifficultyComparator.class)
 public class CloudProcess extends AbstractPersistable{

  private int requiredCpuPower;
  private int requiredMemory;
  private int requiredNetworkBandwidth;

  private CloudComputer computer;

  public CloudProcess(long id, int requiredCpuPower, int requiredMemory,
  int requiredNetworkBandwidth) {
  super();
  setId(id);
  this.requiredCpuPower = requiredCpuPower;
  this.requiredMemory = requiredMemory;
  this.requiredNetworkBandwidth = requiredNetworkBandwidth;
  }
   public CloudProcess() { }

  public int getRequiredCpuPower() {
  return requiredCpuPower;
  }

  public void setRequiredCpuPower(int requiredCpuPower) {
  this.requiredCpuPower = requiredCpuPower;
  }

  public int getRequiredMemory() {
  return requiredMemory;
  }

  public void setRequiredMemory(int requiredMemory) {
  this.requiredMemory = requiredMemory;
  }

  public int getRequiredNetworkBandwidth() {
  return requiredNetworkBandwidth;
  }

  public void setRequiredNetworkBandwidth(int requiredNetworkBandwidth) {
  this.requiredNetworkBandwidth = requiredNetworkBandwidth;
  }

  public String getLabel() {
         return "Process " + id;
     }
   @PlanningVariable(strengthComparatorClass =
 CloudComputerStrengthComparator.class)
  @ValueRange(type = ValueRangeType.FROM_SOLUTION_PROPERTY,
 solutionProperty = "computerList")
  public CloudComputer getComputer() {
  if (computer == null) { return null; }
  return computer;
  }

  public void setComputer(CloudComputer computer) {
  this.computer = computer;
  }
   public CloudProcess clone(){
  CloudProcess clone = new CloudProcess();
  clone.id = id;
  clone.requiredCpuPower = requiredCpuPower;
  clone.requiredMemory = requiredMemory;
  clone.requiredNetworkBandwidth = requiredNetworkBandwidth;
  clone.computer = computer;
  return clone;
  }
   public int getRequiredMultiplicand() {
         return requiredCpuPower * requiredMemory *
 requiredNetworkBandwidth;
     }
 }
 --------------

  this is what i'm doing to run the example:

  -------------
  package com.swa.planner.domain;

  import java.io.ByteArrayInputStream;
 import java.util.ArrayList;
 import java.util.List;

  import org.drools.planner.config.SolverFactory;
 import org.drools.planner.config.XmlSolverFactory;
 import org.drools.planner.core.Solver;

  public class CloudTest {
  public static void main(String[] args) {
  String t = "<?xml version=\"1.0\"
encoding=\"UTF-8\"?>"
  + "<solver>"
  + " 
<solutionClass>com.swa.planner.domain.CloudBalance</solutionClass>"
  + "

<planningEntityClass>com.swa.planner.domain.CloudProcess</planningEntityClass>"
  + "  <scoreDirectorFactory>"
  + "    <scoreDefinitionType>HARD_AND_SOFT</scoreDefinitionType>"
  + "

<scoreDrl>/com/swa/planner/domain/rule/cloudBalancingScoreRules.drl</scoreDrl>"
  + "  </scoreDirectorFactory>"
  + "  <termination>"
  + "    <maximumSecondsSpend>120</maximumSecondsSpend>"
  + "  </termination>"
  + "  <constructionHeuristic>"
  + "

<constructionHeuristicType>FIRST_FIT_DECREASING</constructionHeuristicType>"
  + "

<constructionHeuristicPickEarlyType>FIRST_LAST_STEP_SCORE_EQUAL_OR_IMPROVING</constructionHeuristicPickEarlyType>"
  + "  </constructionHeuristic>"
  + "  <localSearch>"
  + "    <acceptor>"
  + "      <planningEntityTabuSize>7</planningEntityTabuSize>"
  + "    </acceptor>"
  + "    <forager>"
  + "     
<minimalAcceptedSelection>1000</minimalAcceptedSelection>"
  + "    </forager>"
  + "  </localSearch>"
  + "</solver>";

  byte b[] = t.getBytes();
  ByteArrayInputStream bt = new ByteArrayInputStream(b);
  SolverFactory solverFactory = new XmlSolverFactory().configure(bt);
  Solver solver = solverFactory.buildSolver();

  List<CloudComputer> computerList = new ArrayList<CloudComputer>();
  computerList.add(new CloudComputer(1L, "Computador 1", 3, 2, 2, 110));
  computerList.add(new CloudComputer(2L, "Computador 2", 12, 8, 3, 400));
  computerList.add(new CloudComputer(3L, "Computador 3", 6, 6, 4, 300));
  computerList.add(new CloudComputer(4L, "Computador 4", 18, 12, 8, 1000));
  computerList.add(new CloudComputer(5L, "Computador 5", 8, 4, 6, 800));
  computerList.add(new CloudComputer(6L, "Computador 6", 9, 7, 9, 1000));

  List<CloudProcess> processList = new ArrayList<CloudProcess>();
  processList.add(new CloudProcess(11L, 2, 2, 2));
  processList.add(new CloudProcess(12L, 4, 4, 2));
  processList.add(new CloudProcess(13L, 1, 1, 3));
  processList.add(new CloudProcess(14L, 7, 3, 5));
  processList.add(new CloudProcess(15L, 5, 8, 3));
  processList.add(new CloudProcess(16L, 9, 2, 2));
  processList.add(new CloudProcess(17L, 6, 5, 6));

  CloudBalance cloudBalance = new CloudBalance();
  cloudBalance.setId(0L);
  cloudBalance.setComputerList(computerList);
  cloudBalance.setProcessList(processList);

  // Solve the problem
  solver.setPlanningProblem(cloudBalance);
  solver.solve();
  CloudBalance solvedCloudBalance = (CloudBalance)
 solver.getBestSolution();

  // Display the result
  System.out.println("\nSolved cloudBalance with 5 computers and 6
 processes:\n"
  + toDisplayString(solvedCloudBalance));
  }

  public static String toDisplayString(CloudBalance cloudBalance) {
  StringBuilder displayString = new StringBuilder();
  for (CloudProcess process : cloudBalance.getProcessList()) {
  CloudComputer computer = process.getComputer();
  displayString.append("  ").append(process.getLabel())
  .append(" -> ")
  .append(computer == null ? null : computer.getLabel())
  .append("\n");
  }
  return displayString.toString();
  }
 }

  -------------

 2013/1/28 Geoffrey De Smet <ge0ffrey.spam(a)gmail.com&gt;

>  The value of a variable of an entity starts out as null during
> construction heuristics, even if it's not nullable.
>
> The usual trick is to add null safe getters:
>
> public class BedDesignation {
>
>    // bed is planning variable
>   ...
>   public Departement getDepartment() {
>      if (bed == null) { return null;}
>      return bed.getRoom().getDepartement()
>   }
> }
>
>
> Op 28-01-13 15:13, André Fróes schreef:
>
> I've implemented it to see how it would work, now I got another error:
>
>  ---------------
>
>  12:10:41.357 [main] INFO  o.d.p.core.solver.DefaultSolver - Solving
> started: time spend (302), score (null), new best score (null), random seed
> (0).
> Exception in thread "main" Exception executing consequence for rule
> "requiredCpuPowerTotal" in com.swa.planner.domain.rule:
> java.lang.NullPointerException
>  at
>
org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
>  at
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1297)
>  at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1221)
>  at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1456)
>  at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
>  at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
>  at
>
org.drools.planner.core.score.director.drools.DroolsScoreDirector.calculateScore(DroolsScoreDirector.java:177)
>  at
>
org.drools.planner.core.solver.scope.DefaultSolverScope.calculateScore(DefaultSolverScope.java:92)
>  at
>
org.drools.planner.core.phase.AbstractSolverPhaseScope.calculateScore(AbstractSolverPhaseScope.java:120)
>  at
>
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.processMove(DefaultGreedyDecider.java:136)
>  at
>
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.doMove(DefaultGreedyDecider.java:110)
>  at
>
org.drools.planner.core.constructionheuristic.greedyFit.decider.DefaultGreedyDecider.decideNextStep(DefaultGreedyDecider.java:82)
>  at
>
org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:65)
>  at
> org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)
>  at
> org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)
>  at com.swa.planner.domain.CloudTest.main(CloudTest.java:65)
> Caused by: java.lang.NullPointerException
>  at java.lang.String.<init>(Unknown Source)
>  at org.mvel2.util.ErrorUtil.rewriteIfNeeded(ErrorUtil.java:12)
>  at
> org.mvel2.compiler.ExpressionCompiler._compile(ExpressionCompiler.java:302)
>  at
> org.mvel2.compiler.ExpressionCompiler.compile(ExpressionCompiler.java:62)
>  at org.mvel2.MVEL.compileExpression(MVEL.java:810)
>  at
> org.drools.base.mvel.MVELCompilationUnit.compile(MVELCompilationUnit.java:435)
>  at
>
org.drools.base.mvel.MVELCompilationUnit.getCompiledExpression(MVELCompilationUnit.java:238)
>  at
>
org.drools.rule.constraint.MvelConstraint.createMvelConditionEvaluator(MvelConstraint.java:206)
>  at
> org.drools.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:190)
>  at
> org.drools.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:157)
>  at org.drools.reteoo.AlphaNode.assertObject(AlphaNode.java:137)
>  at
>
org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:497)
>  at
>
org.drools.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:382)
>  at
> org.drools.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:235)
>  at
> org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:240)
>  at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:350)
>  at
> org.drools.common.SimpleBeliefSystem.insert(SimpleBeliefSystem.java:38)
>  at
>
org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:204)
>  at
>
org.drools.common.TruthMaintenanceSystem.addLogicalDependency(TruthMaintenanceSystem.java:176)
>  at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:231)
>  at
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:903)
>  at
>
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:245)
>  at
>
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:210)
>  at
>
org.drools.base.DefaultKnowledgeHelper.insertLogical(DefaultKnowledgeHelper.java:205)
>  at
>
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.defaultConsequence(Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bd.java:14)
>  at
>
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvokerGenerated.evaluate(Unknown
> Source)
>  at
>
com.swa.planner.domain.rule.Rule_requiredCpuPowerTotal_d2d9e4332c804bacac7861ac867eb4bdDefaultConsequenceInvoker.evaluate(Unknown
> Source)
>  at
> org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
>  ... 14 more
>
>  -----------------
>
>  this one i have no clue
>
>
> 2013/1/28 André Fróes <arfmoraes(a)gmail.com&gt;
>
>>  Hello there, i'm getting this error:
>>
>>  -------------------
>>  11:26:50.394 [main] INFO  o.d.p.core.solver.DefaultSolver - Solving
>> started: time spend (187), score (null), new best score (null), random seed
>> (0).
>> Exception in thread "main" java.lang.IllegalStateException: The
>> selectionOrder (DECREASING_DIFFICULTY) can not be used on a PlanningEntity
>> (com.swa.planner.domain.CloudProcess) that has no support for difficulty
>> sorting. Check the @PlanningEntity annotation.
>>  at
>>
org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector.validate(PlanningEntitySelector.java:53)
>>  at
>>
org.drools.planner.core.heuristic.selector.entity.PlanningEntitySelector.phaseStarted(PlanningEntitySelector.java:45)
>>  at
>>
org.drools.planner.core.constructionheuristic.greedyFit.selector.GreedyPlanningEntitySelector.phaseStarted(GreedyPlanningEntitySelector.java:41)
>>  at
>>
org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.phaseStarted(DefaultGreedyFitSolverPhase.java:111)
>>  at
>>
org.drools.planner.core.constructionheuristic.greedyFit.DefaultGreedyFitSolverPhase.solve(DefaultGreedyFitSolverPhase.java:57)
>>  at
>>
org.drools.planner.core.solver.DefaultSolver.runSolverPhases(DefaultSolver.java:190)
>>  at
>> org.drools.planner.core.solver.DefaultSolver.solve(DefaultSolver.java:155)
>>  at com.swa.planner.domain.CloudTest.main(CloudTest.java:51)
>> -------------------------
>>
>>  I know why it is happening though (at least i think so), but will I
>> have to implement the comparator to every planner I do or is there any
>> other way to make it work?
>>
>>  I'm reproducing the example from the guide, when it passes the drools
>> rules it gives that message. I didn't implement
>> CloudComputerStrengthComparator neither CloudProcessDifficultyComparator,
>> will I have to implement those so this example works?
>>
>
>
>
> _______________________________________________
> rules-users mailing
listrules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
> _______________________________________________
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> rules-users(a)lists.jboss.org
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>
>

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Re: [rules-users] Error selecting order decrease [planner]