drools规则前件的表述
请问在drools的规则文件的when语句中是不是不能进行精确的加减运算,因为运行后出现如下错误:
BuildError: Unable to Analyse Expression (currenttime-Time) > 5:
[Error: unable to resolve method using strict-mode: data.TagDigital.currenttime()]
[Near : {... (currenttime-Time) > 5 ....}]
偶是drools初学者,还望大家多多指教,谢谢。