硬约束Optaplanner

Question

我想强迫每位护士在2周内进行9个班次。硬约束。我还想在夜班后强制执行3天的休息日。这两方面对护士来说都是严格的限制。请问以下工作

 salience 1 // Do these rules first (optional, for performance)
when
    $contractLine : MinMaxContractLine(contractLineType == ContractLineType.TOTAL_ASSIGNMENTS, enabled == true,
        $contract : contract)
    $employee : Employee(contract == $contract)
    accumulate(
        $assignment : ShiftAssignment(employee == $employee);
        $total : count($assignment)
    )
then
    int totalInt = $total.intValue();
    if ($contractLine.isMinimumEnabled() && totalInt < $contractLine.getMinimumValue()) {
        scoreHolder.addHardConstraintMatch(kcontext,
                (totalInt - $contractLine.getMinimumValue()) * $contractLine.getMinimumWeight());
    } else if ($contractLine.isMaximumEnabled() && totalInt > $contractLine.getMaximumValue()) {
        scoreHolder.addHardConstraintMatch(kcontext,
                ($contractLine.getMaximumValue() - totalInt) * $contractLine.getMaximumWeight());
    } else {
        // Workaround for https://issues.jboss.org/browse/PLANNER-761
        scoreHolder.addHardConstraintMatch(kcontext, 0);
    }