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  1. OptaPlanner
  2. PLANNER-2780

Match rule incorrectly using drools

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Critical Critical
    • 8.28.0.Final
    • 8.26.0.Final
    • optaplanner-core
    • None

      I have 4 rules in drl file, as below

      rule "All planned"
    when
        Task(produceType == 2)
    then
        scoreHolder.addMediumConstraintMatch(kcontext, -10);
end

rule "If not planned, Dark fisrt"
    when
        Task(produceType == 2, artColorDegree == "Dark")
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -10);
end

rule "If not planned, Light second"
    when
        Task(produceType == 2, artColorDegree == "Light")
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -20);
end

rule "If not planned, White third"
    when
        Task(produceType == 2, artColorDegree == "White")
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -30);
end

       

      However, Task(produceType == 1) will match 1 of the 3 "If not planned *" rules.

          Constraint match totals:
        -30soft: constraint (If not planned, White third) has 1 matches:
            -30soft: justifications ([Task{id=3, produceType=1, planDateId=8, machineGroupId=6}])
        -20soft: constraint (If not planned, Light second) has 1 matches:
            -20soft: justifications ([Task{id=2, produceType=1, planDateId=8, machineGroupId=7}])
        -10soft: constraint (If not planned, Dark fisrt) has 1 matches:
            -10soft: justifications ([Task{id=1, produceType=1, planDateId=2, machineGroupId=2}])

       

      Comment 1 of the 3 "If not planned *" rules, it will work correctly or 
      change comma(,) to &&, it will work correctly.

      rule "If not planned, Dark fisrt"
    when
        Task(produceType == 2 && artColorDegree == "Dark")
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -10);
end

rule "If not planned, Light second"
    when
        Task(produceType == 2 && artColorDegree == "Light")
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -20);
end

rule "If not planned, White third"
    when
        Task(produceType == 2 && artColorDegree == "White")
    then
        scoreHolder.addSoftConstraintMatch(kcontext, -30);
end

       

      This is very unexpected, could anyone help to solve this, thanks.

              lpetrovi@redhat.com Lukáš Petrovický (Inactive)
              ewinchen Edwin Chen (Inactive)
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                Created:
                Updated:
                Resolved: