Top "Drools" questions

Drools is a business-rule management system (BRMS) with a forward-chaining-inference-based rules engine, more correctly known as a production rule system, using an enhanced implementation of the Rete algorithm.

Drools and Maps

I'm beginner in this framework and I'm trying to use a map instead of Java class. My example looks like …

hashmap drools
Drools rule "not exists"

I'm using JBoss Drools to write some business rules. I got a problem on the "not exists" rule.Here is …

drools business-rules
Drools KnowledgeBase Deprecated

I am integrating the Drools Rules engine into my application. 99% of the examples I have found to get started look …

java drools
drools drl how to do not conditions

I am trying to write a rule in drools drl language where I am want to do something like !(A &…

drools business-rules
No support for Java 7 in Drools ("RuntimeDroolsException: value '1.7' is not a valid language level")

While I'm moving my project to java7, Drools starting throwing RuntimeDroolsException exception during init process. When i dig further, I …

java drools java-7 rule-engine
Data Driven Rules Engine - Drools

I have been evaluating Drools as a Rules Engine for use in our Business Web Application. My use case is …

java drools rules decision-tree
Decision trees and rule engines (Drools)

In the application that I'm working on right now, I need to periodically check eligibility of tens of thousands of …

java drools decision-tree expert-system drools-flow
Configuring drools and maven and writing hello world application using them

I want to learn drools and maven can any one help me with the links for configuring drools and maven …

java maven drools
How do I add facts to working memory at runtime in the Drools DRL and retrieve them in the execution results of a stateless session?

Background: I'm working on an application that transforms an input object into one of two output objects based upon a …

java drools
Multiple boolean conditions in a rule in drools?

I have created a rule whose "when" condition is as follows :- when $map: Map(this["key1"].equals("value1")) and …

java drools rule-engine