如何计算具有特定特征的实用程序集合中的代理数？

Question

我的模型中有两种类型的代理：

1. AgentA-这是一个包裹，必须交付到DeliveryPoint。此代理具有相应的参数“DeliveryPoint”
2. AgentB-它是包含包裹（AgentA）的包（代理容器）。此AgentB也有一个参数“DeliveryPoint”，该参数取决于当前正在交付的包裹（AgentA）的“DeliveryPoint”。我需要计算代理容器AgentB中满足给定条件的代理AgentA。DeliveryPoint==AgentB。交货点

我试过这个表达：

count（agentB.内容（）， p-

代码示例：

  private void _movingToDeliveryPoint_onExit_xjal( final com.anylogic.libraries.processmodeling.Delay<AgentB> self, AgentB agent ) {
    
traceln(count(agent.contents(), p -> ((AgentA)agent.contents()).DeliveryPoint == agent.DeliveryPoint));
  }

但是当我运行我的模型时，我在执行此代码的块“Delay”（“movingToDeliveryPoint”）中收到此错误：

java.base/java.util.Collections无法强制转换为smm_chain。

java.lang.ClassCastException: java.base/java.util.Collections$UnmodifiableList cannot be cast to smm_chain.AgentA
    at smm_chain.sc.lambda$0(sc.java:5168)
    at com.anylogic.engine.UtilitiesCollection.count(Unknown Source)
    at smm_chain.sc._movingToDeliveryPoint_onExit_xjal(sc.java:5168)
    at smm_chain.sc.access$25(sc.java:5163)
    at smm_chain.sc$17.onExit(sc.java:2319)
    at smm_chain.sc$17.onExit(sc.java:1)
    at com.anylogic.libraries.processmodeling.Delay.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.Delay.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.Delay$6.onExit(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBuffer.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBuffer.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBuffer$1.onExit(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.c(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock$1.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.InPort.receiveImmediately(Unknown Source)
    at com.anylogic.libraries.processmodeling.InputBlock$1.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.b(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutPort.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock$2.a(Unknown Source)
    at com.anylogic.libraries.processmodeling.OutputBlock$2.action(Unknown Source)
    at com.anylogic.libraries.processmodeling.AsynchronousExecutor_xjal.executeActionOf(Unknown Source)
    at com.anylogic.engine.EventTimeout.execute(Unknown Source)
    at com.anylogic.engine.Engine.b(Unknown Source)
    at com.anylogic.engine.Engine.nb(Unknown Source)
    at com.anylogic.engine.Engine.k(Unknown Source)
    at com.anylogic.engine.Engine$a.run(Unknown Source)

你能帮我吗？谢谢！

Answer 1

您不能使用agentB。contents（）。虽然它看起来是一种很好的方法，但建模者不应该使用它。

此外，不要使用比较对象。改用equals（）方法。

这样做，假设您在AgentB中有一个名为myAgentsA的AgentA的人口或列表：

 count(myAgentsA, a->a.DeliveryPoint.equals(DeliveryPoint))

这假设您从AgentB中调用代码