forall始终认为是正确的[Drools] [英] forall always evaluates to be true [Drools]

问题描述

我有一个Application类，其中有CallPhone实例的列表。

I have a class Application, within which there is a list of instances of CallPhones.

class Application() {
      List<CallPhones> callPhonesList;
      ...
}

class CallPhones() {
      Integer callTimes;
      ...
}

我想在 callTimes 所有大于10的实例。这是规则：

I want to fire the rule when callTimes of all instances larger than 10. Here is the rule:

rule "Application eligible"
    when
        app : Application()
        forall(CallPhones(callTimes > 10))
    then 
        // application is eligible
end

奇怪的是，该规则始终会触发，即使存在具有 callTimes 为5。我还尝试了这个问题，但没有任何帮助。有想法吗？

Strangely, the rule always fires, even when there's an instance with callTimes being 5. I also tried answer of this question, but got no help. Any ideas?

推荐答案

应该是

rule "Application eligible"
    when
        app : Application()
        forall($temp:CallPhones(callUserTimes > 10) from app.callPhoneList)
    then 
        // application is eligible
end

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