JBoss Drools - how to get data (facts) from java to DRL

Question

How can I get fact definied by user in GUI and insert it to DRL?

For example: The user has chosen black car in GUI (JavaFX), and now I want to use that fact in DRL code. How to send that info about black car to DRL? Should i use POJO?

Answer 1

如果要执行已在DRL文件中编写的规则，则必须创建POJO并使用KieSession执行规则。例如，

val pojo = new POJO('POJO arguments') 
val kieServices = KieServices.Factory.get()
val kieContainer = kieServices.newKieClasspathContainer()
val kieSession = kContainer.newKieSession()
kieSession.insert(pojo)
kieSession.fireAllRules()

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