Question

目前我正在OptaPlanner实施我的第二个项目。我正在检索以下错误：

    Exception in thread "main" java.lang.IllegalArgumentException:
    A planning entity is an instance of a entitySubclass (class com.company.Assignment)
    that is not configured as a planning entity.
    If that class (Assignment) (or superclass thereof) is not a entityClass 
    ([class com.company.Car]), check your Solution implementation's annotated methods.
    If it is, check your solver configuration.

我的SolverConfig.xml是这样的：

<?xml version="1.0" encoding="UTF-8"?>
<solver>
<solutionClass>com.company.Planning</solutionClass>
<entityClass>com.company.Car</entityClass>
<scoreDirectorFactory>
    <scoreDefinitionType>HARD_SOFT</scoreDefinitionType>
    <easyScoreCalculatorClass>com.company.PlanningEasyScoreCalculator</easyScoreCalculatorClass>
    <initializingScoreTrend>ONLY_DOWN</initializingScoreTrend>
</scoreDirectorFactory>
<constructionHeuristic>
    <constructionHeuristicType>FIRST_FIT</constructionHeuristicType>
</constructionHeuristic>
<localSearch>
    <termination>
        <secondsSpentLimit>10</secondsSpentLimit>
    </termination>
    <changeMoveSelector>
        <entitySelector>
            <entityClass>com.company.Car</entityClass>
        </entitySelector>
        <valueSelector>
            <variableName>assignment</variableName>
        </valueSelector>
    </changeMoveSelector>
    <acceptor>
        <entityTabuSize>7</entityTabuSize>
    </acceptor>
    <forager>
        <acceptedCountLimit>1000</acceptedCountLimit>
    </forager>
</localSearch>
</solver>

“Car”类注释为“@PlanningEntity”。 “Planning”类使用“@PlanningSolution”注释。 Tha“Assignment”课程是我的问题。解决方案的“@PlanningEntityCollectionProperty”位于运行“Car”列表的getter上。

“Main”类如下所示：

public class Main {
public static final String SOLVER_CONFIG_XML = "com/company/PlanningSolverConfig.xml";
public static ScoreDirector scoreDirector;
public static void main(String[] args) {
    // Read data from XLS file and initialize the problem
    ReadDataFromXls Reader = new ReadDataFromXls();
    Planning planningSituation = new Planning(Reader.ReadAssignments(),Reader.ReadCars());
    // Build the solver
    Solver solver = SolverFactory.createFromXmlResource(SOLVER_CONFIG_XML).buildSolver();
    // Solve the problem and get the best solution
    solver.solve(planningSituation);
    Planning solvedPlanning = (Planning) solver.getBestSolution();
    // Display the result
    System.out.println("TODO");
}
}

6.3.0.CR1的错误消息基本相同+有关SLF4J

的错误

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" java.lang.IllegalArgumentException: A planning entity is an instance of an entitySubclass (class com.company.Assignment) that is not configured as a planning entity.
If that class (Assignment) (or superclass thereof) is not a entityClass ([class com.company.Car]), check your Solution implementation's annotated methods.
If it is, check your solver configuration.

编辑：我在OptaPlanner的第一个项目是“一对多”问题（项目有开发人员，开发人员可以有多个项目）。这个项目是一对一的问题（开车到一个任务需要一辆车，一辆汽车可以完成一项任务）。

编辑：我改变了计划问题的模型。现在，“作业”课程是我的“计划实体”，而“汽车”课程则是“计划事实”。错误信息仍然是相同的，除了“Car”和“Assignment”切换位置的事实：）

Answer 1

我敢打赌，解决方案的@PlanningEntityCollectionProperty位于运行Assignment集合（在您的情况下不是实体）而不是Car的getter上（这是实体）。

但是，类命名令人困惑。我会将课程Assignment重命名为Task，将课程Car重命名为CarAssignment，因为任何名称分配通常都是规划实体......

Answer 2

必须以某种方式对您的域名模型进行错误配置。

你完全正确！我打电话给这个构造函数：

    public Planning(List<Car> carList, List<Assignment> assignmentList) {
    this.carList = carList;
    this.assignmentList = assignmentList;
    }

有了这个论点：

Planning planningSituation = new Planning(Reader.ReadAssignments(),Reader.ReadCars());

感谢您的帮助！

OptaPlanner：java.lang.IllegalArgumentException

2 个答案: