JMS – a new fact provider for Drools via Pipeline

The Drools Pipeline is a great tool that allows to put facts into the rule engine from the outside world. Currently supported stores are JMS queues and topics and text files. The format of the payload is almost free to choose, since out of the box you can use JAXB, XStream and the powerful Smooks transformer to convert your data into facts, which the rule engine is able to consume.
This article explains how to use Pipelines.

Tuning Guvnor

Guvnor is the business rules management system in Drools 5. When you deploy it out of the box, you get an unsecured web application that stores data in Jackrabbit’s embedded Derby database.
This article explains how to tune Guvnor deployed on JBoss Application Server 4.2.3. It's available in English and German.

Drools meets Hibernate

Drools evaluates facts which are present in the working memory. But it can also reason over data stored in a relational database. This can be achieved using for example a Hibernate Session to access a relational database and then creating a query. Objects in the resultset can be reasoned over the same way like facts in the working memory. An article, which describes this is available in English, German and Polish.