drools

I am executing Drools rule through Mockito test. The rule fails at run time reporting the error with a line number of a java file having some long arbitrary name. It seems that Drools generates java files on the fly and injects into JVM. But when I search those files on my disc I don't find any. Is there a way I could store them on my disc? Kaizar Laxmidhar Got the solution: You can dump the Drools generated java files in two ways. 1) Through command line: -Ddrools.dump.dir="target/dumpDir" e.g. I use maven command to execute the rule so it would be mvn -Ddrools.dump.dir="target/dumpDir"

I am a newbie with Jboss Rule. I have gone through the documentation but I fail to find the approach to begin writing rule for following code sample. For each User code in the list { If User code = ‘11’ { If User code ‘17’ present in the group { Add letter id 1 } Else If User code ‘18’ present in the group { Add letter id 2 } } Else { Add letter id 3 which is the letter need to be sent for code 11 } } I would really appreciate if anyone can give me a hint/idea how to go about it? EDIT: Hi, So far this is what i can develop for the user case discussed above. I am inserting (List of UserDetailVo

I am newbie in Drools and given the work to write rule files i.e. drl files. I am facing one issue. The operator contains is used to check whether a field that is a Collection or array contains the specified value. Object( objList contains "bye" ) -- to verify if "bye' is there in objList or not i.e. for verifying String. But, I have List of Objects and want to check if List contains any particular Object or not so I used the above replacing String with an object but that didn't work.' Can someone please help me. Try memberOf operator From Drools Rule Language Documentation The operator

I have created a rule whose "when" condition is as follows :- when $map: Map(this["key1"].equals("value1")) and Map(this["key2"].equals("value2")) then ... The above condition is working fine. Now how do I add multiple boolean conditions in a rule? For eg. The above rule could be summarized as : a and b so if I want to create a rule : (a and b) or c then what would be actual drl syntax for it. I am new to drools so kindly help me with the syntax of the rule (a and b) or c. I did create a syntax when $map: Reindexing((Map(this["key1"].equals("value1")) and Map(this["key2"].equals("value2"))) or

org.xml.sax.SAXParseException: cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'drools:grid-node'. I'm getting this error when I add a grid-node and ksession to my spring xml. I did some searching and looks like it a classpath issue. What dependency am I missing here ? <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:camel="http://camel.apache.org/schema/spring" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema

1. 背景介绍 1.1 何为规则引擎 很多企业的IT业务系统中，经常会有大量的业务规则配置，而且随着企业管理者的决策变化，这些业务规则也会随之发生更改，为了适应这样的需求，IT业务系统应该能够快速且低成本的更新，通常做法是将业务规则的配置单独拿出来，使之与业务系统保持低耦合，实现这样功能的程序，叫做规则引擎。 接受数据输入，解释业务规则，并根据业务规则作出业务决策，从而实现了将业务决策从应用程序中分离出来。 1.2 一个实际的例子 银行贷款业务中，每种贷款类型都有不同的业务规则，并且这些规则也可能会根据实际应用情况进行调整，如觉得网贷产品类型有如下判定规则： 如果公积金缴存基数大于6000则进入白领贷 如果公积金缴存基数小于6000但单位性质是国家机关/事业单位也进入白领贷 如果公积金缴存基数小于6000且单位性质为非国家机关/事业单位则进入市民易贷 如果公积金缴存基数小于6000并且单位性质缺失则进入公积金贷 如果在代码中处理这类业务逻辑，会有很多的IF/ELSE，并且如果规则发生变化，还需要重新编写代码、编译、部署才能上线。 而通过规则引擎，可以方便的将这类业务强相关的逻辑放到规则引擎中执行 1.3 规则引擎的优点 对系统的使用人员 l 把业务策略（规则）的创建、修改和维护的权利交给业务经理 l 提高业务灵活性 l 加强业务处理的透明度，业务规则可以被管理 l

I'm trying to run drools 6.2.0.Final with Spring Boot 1.2.2.RELEASE. I configured drools as the documentation says. My kie-context.xml configuration file is where I keep the drools beans and looks like this: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:kie="http://drools.org/schema/kie-spring" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://drools.org/schema/kie-spring http://drools.org/schema/kie

I've read a lot of documentation of JBoss Drools but cannot find a definitive answer as to if all rules are executed concurrently (certainly they are fired concurrently). More specifically, for a single input and a rule set of say 1000 rules, do the "when" conditions and the "then" conditions in each rule, execute sequentially one by one, or in parallel at the same time. On the one hand the rete algorithm implies parallelism, certainly when the select nodes are collapsed. However after the nodes are optimized is the evaluation sequential? And the beta memory and join nodes look like they