Drools
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Core Java

How to Find Matched Rules in Drools
In Drools-based applications, it is often necessary to know which rules were executed for a given set of facts. This…
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Enterprise Java

Drools Chaining Approaches
Rule engines implement automated reasoning by applying rules to a set of facts. Two classical reasoning approaches are forward chaining…
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Enterprise Java

Functional Programming in DMN: it FEELs like recursing my university studies again
In this post, I would like to share interesting insights about recursion support in DMN and highlights how specific properties…
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Enterprise Java

Constraint Streams – Modern Java constraints without the Drools Rule Language
Traditionally, to scale out with OptaPlanner, you had to learn DRL. No more. With the new Constraints Streams API, inspired…
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Enterprise Java

Kogito, ergo Rules: From Knowledge To Service, Effortless
Welcome to another episode of this blog series on the Kogito initiative and our efforts to bring Drools to the…
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Enterprise Java

PMML revisited
Hi folks! The beginning of this year brings with it the initiative to re-design the Drools PMML module. In this…
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Enterprise Java

Recent Drools DMN open source engine performance improvements
We are always looking to improve the performance of the Drools DMN open source engine. We have recently reviewed a…
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Enterprise Java

Kogito, ergo Rules — Part 2: An All-Encompassing Execution Model for Rules
This is the second post of a series of updates on the Kogito initiative and our efforts to bring Drools…
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Enterprise Java

Kogito, ergo Rules — Part 1: Bringing Drools Further
The Kogito initiative is our pledge to bring our business automation suite to the cloud and the larger Kubernetes ecosystem.…
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