What is CockroachDB? CockroachDB is a project I've been keeping an eye on for a while now with great interest. It's a an open-source, Apache 2 licensed, database (Github link) that heavily draws inspiration from the Google Spanner whitepaper. At it's core its a key-value store that scales horizontally. What makes it really interesting for us though...

We've just put the finishing touches on the first version of the Swagger integration for the Flowable REST API (look for the ‘swagger-integration' branch in the Flowable Github repository that soon will be merged to master). The last year, more and more people have asked us for adding this to our REST API's. For those who don't […]...

For the many of you that are following me on Twitter it's probably not news anymore, but I wanted to make sure that all readers of my blog are in the loop (and of course, thanks for visiting my humble spot in the interwebs!). Last Thursday, we announced Flowable, a fork of Activiti. We've written […]

A feature that has been requested quite a bit – transient variables – has landed in the Beta3 of Activiti v6 we've released yesterday. In this post, I'll show you an example on how transient variables can be used to cover some advanced use cases that weren't possible (or optimal) before. So far, all variables […]

A bit of history One thing that never ceases to amaze me is how Activiti is being used in some very large organisations at some very impressive scales. In the past, this has led to various optimizations and refactorings, amongst which was the async executor – replacement for the old job executor. For the uninitiated: these executors handle [&...

One of the prominent features of the recent Activiti 5.21.0 release is ‘secure scripting'. The way to enable and use this feature is documented in detail in the Activiti user guide. In this post, I'll show you how we came to its final implementation and what it's doing under the hood. And of course, as it […]

We just released Activiti version 5.21.0! This release contains some quite important bugfixes, more specifically It fixes some cases where the end time was not set for activities in a process definition under certain conditions. A concurrency bug was discovered when using delegateExpressions together with field injection. Make sure to read the upda...

We've just released Activiti 5.20.0. This is a bugfix release (mainly fixing the bug around losing message and signal start event subscriptions on process definition redeployment, see ACT-4117). Get it from the download page or of course via Maven.

When my buddy Josh Long from Pivotal writes about Activiti and Spring, it's always must-read material. No exception this time, so I do want to give it exposure here too: Orchestrating Work With Activiti and Spring Integration Nice conclusion too: "BPM adds a fair amount of cognitive load for simple integrations but offers a lot of […]...

We just released Activiti 5.19.0.2. This is a bugfix release fixing following changes: Security fix around using commons-collection (more info see the commit) Upgrade to MyBatis 3.3.0 Enhancing AsyncExecutor for high load scenarios (especially when the job queue is full) A few small bug fixes  

It's been way too long ago we've had an Activiti meetup in Belgium (which is where I live, so there is no excuse really). Over a lunch with my good friend Yannick Spillemaeckers, we decided to rectify that. So I'm proud to announce we'll be having a meetup March 2nd 2016 in Antwerp! You can […]

Just in time for Christmas, we've released the second beta of Activiti v6! You can get it through the usual channels: the activiti.org website or through Maven. This release is mainly a ‘refactoring-release' that prepares the code for all the nifty stuff we want to do next: low in new features, but the internal kitchen has […]...

In case you missed the following tweet last week   Welcome #Activiti on https://t.co/xJZy2DixHH! cc @starbuxman @jbarrez pic.twitter.com/kDpx0kRB72 — Stéphane Nicoll (@snicoll) November 12, 2015 That's right! Activiti is now on start.spring.io! This is a huge deal – the Spring Initializr is the place where the journey for many Spring Boo...

I just passed the 5000 forum posts on the Activiti Forum. Out of a total of 41792 posts, so you can only blame me for  12% of the content on there ;-). Just thinking about it humbles me tremendously. The forum is such an important tool for improving the Activiti Engine, guarding the quality and getting fresh ideas for […]

One feature request we've heard in the past is that of running the Activiti engine in a multi-tenant way where the data of a tenant is isolated from the others. Certainly in certain cloud/SaaS environments this is a must. A couple of months ago I was approached by Raphael Gielen, who is a student at […]