EMF-IncQuery 0.8.1 released and EclipseCon plans

We have released version 0.8.1 of EMF-IncQuery, a release fixing a selection of bugs. It is recommended for all users of EMF-IncQuery to update to this latest version. The update is available both from Eclipse Marketplace and the project download page.

EMF-IncQuery 0.8.0 Released

The EMF-IncQuery project is happy to report that our new release with the version 0.8.0 is available now from the Eclipse.org download servers or the Eclipse Marketplace.

Three papers accepted at MODELS 2014

Three papers by our research group have been accepted at the MODELS 2014 (ACM/IEEE Model Driven Engineering Languages and Systems) scientific conference, the top international forum for model-driven software engineering.

A year's worth of research in retrospect

It's the end of the year according to both the calendar, as well as my research grant. I have spent some of this past year doing research on the connection of OCL and graph queries. I have also tried to explain and illustrate my research topic in previous posts of this very blog, and let the readers keep tabs on what I was up to all this time. Let's do a quick recap.

Measuring up

My previous blog post demonstrated my OCL to EMF-IncQuery transformation OCL2IQ in action. Here I am presenting my first performance measurements to investigate whether this solution fulfills the original promise of my research: delivering efficient, incremental query evaluation for a subset of OCL expressions by transforming them to graph patterns of equivalent semantics, and applying EMF-IncQuery on them.

It is alive!

In one of my earlier blog posts, I have outlined the basic ideas and transformation patterns that accomplish a translation of (a subset of) OCL expressions into graph patterns. The theory was illustrated by running examples from the school case study, where the purpose of querying was to find classmates with the same name. The good news is that I have managed creating an experimental implementation of this translation that maps OCL expressions to equivalent graph patterns.

Xcore meets IncQuery: How the new generation of DSLs are made - talk at EclipseCon Europe 2013

The EMF-IncQuery Project is proud to announce our talk at this year's EclipseCon Europe conference titled "Xcore meets IncQuery: How the New Generation of DSLs Are Made".

Have you ever got lost in a complex domain-specific model? Are you familiar with Facebook's Graph Search? Ever wished something like this would be available for your favorite EMF-based tool? It is, it's called EMF-IncQuery. In fact, it can do more than Graph Search, because you can create live queries, meaning you get live updates for your search results as the model is being edited. In the talk, we'll show you some of the most powerful features that this technology can be used for in practice.

See you on 31 October between 14:15 - 14:50 in Seminarräume 1-3!

The technology presented in this talk is the result of a collaboration between Ed Merks, Tamas Szabo (itemis AG) and the EMF-IncQuery team. Read the rest of the blog post below for more information regarding the presentation and the live demos.

Providing incremental updates for queries, part II: expression evaluation

After the overview presented in my previous blog post, I am now going to discuss incremental expression evaluation, a.k.a. the eval() language element, which is my most recent contribution to EMF-IncQuery. The examples continue to rely upon the School metamodel introduced here.

Interview with our former student in the german Eclipse Magazine

The german Eclipse Magazin has published an interview with our former student, Donát Csikós, who is now working at CERN. Among a lot of interesting details about his job, he also mentioned our research group and the EMF-IncQuery project. The online version can be found at the following links: german original, english translation by Google.

Providing incremental updates for queries, part I

After discussing the importance of modeling and the concept of model queries (with OCL and EMF-IncQuery), one of the introductory blog posts presented the challenge posed by model evolution. Incremental query evluation was suggested then as a solution, without going into the details of how it can be achieved for a query language such as the one of EMF-IncQu