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Activiti and Drools in Action @WJAX2011

Bernd Rücker — Mon, 14 Nov 2011 16:32:18 +0000

Activiti & Drools in Action

Last week I gave a talk about Activiti and Drools in Action at the WJAX in Munic, Germany, which is one of the largest and most important Java conferences in Germany. I gave a demo using the latest camunda fox server, basically a JBoss AS 7 with Activiti integrated. More than 80 people in a totally crowded room showed how hot this topic must be The whole stack allowed me to create an application using the Activiti Process Engine, JSF, CDI, JPA, EJB and the Drools Rule Engine in the train ride from Berlin to Munic, the required code is really pretty small. Today I uploaded a cast of the whole talk (but in German) and want to provide the link to the sources.

order confirmation process and surrounding process solution artifacts

The following picture give an idea of what the application does in terms of the process. For Drools I included some discount rules in my process, which are generated on the fly by a rule table implemented as JPA entities, shown in the second image.

Drools Regeln werden aus Entitäten der Regeltabelle erzeugt

You can download the camunda fox server and the example application. Just adjust the path to your JBoss in the build.properties file, then you can use the ant file for deployment. You can access the application by this URL afterwards: http://localhost:8080/order-confirmation-rules/. Have fun!

Business Rules with Drools

Bernd Rücker — Thu, 21 Apr 2011 08:19:49 +0000

We lately did quite some projects with the Business Rules Engine JBoss Drools for our customers. And as I noted in various talks or posts already, I really like Drools as a Rule Engine. For Guvnor as the “BRMS” System covering use cases as rules editing, versioning, release management, testing, searching and so on I am not that convinced of the current solution, basically due to some technical problems and the overall user experience of the UI.

But it is obviously a good step in the right direction. Hence in some projects we developed some own easy user interface for the business people, where in the background we generated the Drools Rules from that input. The Drools infrastructure supports that as well. And in show cases it is always fascinating to people, that you can easily edit rules in Excel Spreadsheets In our Activiti+Drools talk in two weeks at the JAX in Mainz we will present a show case using Drools and Activiti combined, a very powerful combination by the way! Reminds me of “the old days” where I talked about jBPM+Drools

Why am I telling you all this? Actually for two reasons. First: If you haven’t done that yet, have a look at the JBoss Drools project. It is really a valuable addition to a lot of projects and worth investing some time in it. And second: The easiest to get in touch with Drools is to join our brand new Drools training We scheduled the next training at May the 25th, see you in Berlin! There we will have a deeper look into the concepts of a rule engine, how Drools works, how can use Drools in Java (so you should know some Java!), how to write Rules and where the nuts and bolts are, how to combine BPMN und Business Rules, how to author and maintain rules and much more. Thrilling content for a two days training I am looking forward to it…

JBoss jBPM & Drools bei der Java User Group Berlin

Bernd Rücker — Sat, 14 Feb 2009 10:32:22 +0000

Am 04. Februar 2008 habe ich in Berlin bei der Java User Group Berlin Brandenburg (JUG-BB) einen Vortrag über BPM und Business Rules mit den Open Source Frameworks JBoss jBPM und JBoss Drools gehalten.

Trotz dem ich gesundheitlich etwas angeschlagen war, haben wir das Ganze noch ganz gut geschaukelt. Mit ca. 60 Leuten war die Kapazität des Vortragsraumes auch ausgelastet, Gerüchten zufolge wären auch gerne noch mehr gekommen.

Ich habe mich sehr gefreut, dass das Thema entsprechend Interesse anzieht und durfte auf ein interessiertes Publikum mit vielen Fragen treffen, die oft auch durch einen kleinen Exkurs in den Quellcode beantwortet werden konnten. Somit hat es mir auf jeden Fall viel Spaß gemacht!

Ein paar Bilder finden sich auf der “offiziellen” Nachlese von Ralph Bergmann, der die JUG-BB organisiert: http://www.jug-bb.de/2009/02/nachlese-jboss-jbpm-und-drools/.

Wie versprochen sind hier nun auch die Folien zum Vortrag:

JBoss jBPM und Drools – Geschäftsprozesse und Regeln mit Open Source Java

View more presentations from camunda. (tags: jbpm drools)