流口水约会强迫和条件或 [英] Drools date coercion and conditional OR

问题描述

如果我尝试在日期类型上使用条件的简单Drools规则并使用条件OR（ || ），则会出现以下错误。如果我将 || 更改为& ，则效果很好。这是错误，已知限制还是我的规则有问题？
我正在使用Drools 5.5.0 Final

If I try a simple Drools rule with conditions on date type and uses conditional OR (||) I get the following error. If I change || to && it works fine. Is this a bug, known limitation or something wrong with my rule? I am using Drools 5.5.0 Final

规则文件

package net.madhura.drools.rules

import net.madhura.drools.DateContainer;

dialect "mvel"

rule "Test rule"
when
    $container: DateContainer(
        date >= "15-Oct-2013" || date <= "01-Oct-2013"
    )
then
    System.out.println("working");
end

DateContainer类

DateContainer class

package net.madhura.drools;

import java.util.Date;

public class DateContainer {

    private Date date;

    public DateContainer(Date date) {
        this.date = date;
    }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }
}

错误

Unable to Analyse Expression date >= "15-Oct-2013" || date <= "01-Oct-2013":
[Error: Comparison operation requires compatible types. Found class java.util.Date and class java.lang.String]
[Near : {... date >= "15-Oct-2013" || date <= "01-Oct-2013" ....}]
                                              ^
[Line: 9, Column: 1] : [Rule name='Test rule']

推荐答案

显然，这是一个Drools错误，现已修复。错误报告位于此处

Apparently this is a Drools bug which is now fixed. Bug report is here

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