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Tag Archives: Activiti

How to use transient variables in Activiti

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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 in Activiti were persistent. This means ...

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Benchmarking the message queue based Activiti Async Executor

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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 timers and async continuations in ...

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How the Secure Scripting in Activiti works

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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 is my usual signature style, ...

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Multi-Tenancy with separate database schemas in Activiti

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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 the university of Bonn, working ...

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Pluggable persistence in Activiti 6

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In the past years, we’ve often heard the request (both from community and our customers) on how to swap the persistence logic of Activiti from relational database to something else. When we announced Activiti 6, one of the promises we made was that we would make exactly this possible. People that have dived into the code of the Activiti engine will ...

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Activiti 6: An Evolution of the Core Engine

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This article describes the changes with regards to the Activiti core engine and how version 6 differs from version 5. All the material here, including the code examples  were presented back in June in Paris, but I believed it was good to also have it written down in blog form for people that don’t like watching Youtube movies (although I think ...

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Execute Custom queries in Activiti

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(This will probably end up in the user guide of the Activiti 5.15 release, but I wanted to share it already) The Activiti API allows for interacting with the database using a high level API. For example, for retrieving data the Query API and the Native Query API are powerful in its usage. However, for some use cases they might ...

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The Activiti Performance Showdown

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The question everybody always asks when they learn about Activiti, is as old as software development itself: “How does it perform?”. Up till now, when you would ask me that same question, I would tell you about how Activiti minimizes database access in every way possible, how we break down the process structure into an ‘execution tree’ which allows for ...

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Java Code Geeks Andygene Web Archetype

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Hello all, We are happy to announce that the first release of a set of maven archetypes is out!!! The goal of this set is to provide project templates that can fulfill various development needs. You can find the JCG roadmap at the end if this post. This first release aims to provide a project template – architecture for web ...

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