Drools Canonical Model – Pure Java Rules

Rule engines, like Drools, typically  make use of a custom language to define a set of rules. For example, the…

Read More »

7 ways to fail your optimization project

When you put your optimization project into production, your enterprise will decrease expenses, increase customer satisfaction, improve employee happiness and/or…

Read More »

Keycloak SSO Integration into jBPM and Drools Workbench

Introduction Single Sign On (SSO) and related token exchange mechanisms are becoming the most common scenario for the authentication and…

Read More »

High Availability Drools Stateless Service in Openshift Origin

Hi everyone! On this blog post I wanted to cover a simple example showing how easy it is to scale…

Read More »

Drools: A detailed description of internal code cleanups for fireAllRules, fireUntilHalt and Timers

In June we blogged about a new internal state machine to manage the interaction of User, Timer and Engine threads.…

Read More »

Using a reactive stream as a data source for Drools

A few months ago we started redesigning the Drools lowest level executable model and making it accessible to end user…

Read More »

Integrating JPA Hibernate with OptaPlanner

We’ve been improving the integration of OptaPlanner with the rest of JEE, so it’s easier to build end user applications…

Read More »

What is the fastest Garbage Collector in Java 8?

OpenJDK 8 has several Garbage Collector algorithms, such as Parallel GC, CMS and G1. Which one is the fastest? What…

Read More »

OptaPlanner – How fast is logging?

What’s the cost of trace/debug logging in production? What’s the performance cost of logging to a file? In these benchmarks,…

Read More »