Tamas Miklossy

Der itemis Blog

Tamas works as an IT consultant at itemis AG in Lünen. He is interested in model-driven software development, especially in graphical and textual modeling solutions.

Eclipse, GEF, english, Software Development

Getting started with Eclipse GEF – the Mindmap Tutorial

The Eclipse Graphical Editing Framework is a toolkit to create graphical Java applications either integrated in Eclipse or standalone. The most common use of the framework is to develop diagram editors, like a simple Mindmap editor we will create in the GEF ...

by Tamas Miklossy

Oct 12, 2020

3 min. reading time
Eclipse, GEF, english, Software Development

Graphical Editing Framework (GEF) 5.1.0 Release

The Eclipse GEF team is happy to announce that version 5.1.0 of the Eclipse Graphical Editing Framework is part of the Eclipse 2019-06 simultaneous release:

by Tamas Miklossy

Jun 25, 2019

2 min. reading time
Eclipse, Xtext, DSL, english, Software Development

How to reference UML elements from Xtext DSLs

With the Xtext framework, you can build DSL workbenches in just a few steps. However, sometimes you want to reuse model elements already defined in other formats or even in other languages. In this blog post I’m going to demonstrate typical scenarios when you’re ...

by Tamas Miklossy

Apr 16, 2019

9 min. reading time
Eclipse, Xtext, DSL, english, Software Development

Combining EMF Models with Xtext DSLs

This blog post demonstrates use cases on combining EMF models with Xtext DSLs. It is based on Martin Fowler's secret compartment state machine implementation available via the Xtext Example Wizard.

by Tamas Miklossy

Dec 3, 2018

7 min. reading time
Eclipse, Xtext, GEF, english, Software Development

Eclipse GEF DOT – Graphical Views on Xtext DSLs

The previous blog post introduced complex Graphviz *.dot graphs to add Eclipse GEF DOT-based visualization support to the Eclipse IDE. This blog post demonstrates the usage of the GEF DOT Graph View to add graphical representations to Xtext DSLs.

by Tamas Miklossy

Oct 22, 2018

5 min. reading time
Eclipse, GEF, english, Software Development

Adding GEF DOT-based visualization support to the Eclipse IDE

The previous blog post introduced the GEF DOT Editor that assists the user in editing Graphviz *.dot files and the GEF DOT Graph View that is capable of visualizing them in the Eclipse Workbench UI. This blog post continues with more complex DOT graphs to show ...

by Tamas Miklossy

Sep 26, 2018

6 min. reading time
Eclipse, Xtext, GEF, english, Software Development

Pro Tip: Implementing JUnit Test Cases in Xtend

What makes a clean test? Three things. Readability, readability, and readability. Readability is perhaps even more important in unit tests than it is in production code. What makes tests readable? The same thing that makes all code readable: clarity, simplicity, ...

by Tamas Miklossy

Jun 15, 2018

3 min. reading time
Eclipse, Xtext, Software Development

Xtend 2.14 – Unnecessary modifiers validation

In the Xtend programming language, visibility modifiers are unnecessary when they match the defaults. The public modifier is default on: Classes Interfaces Enums Annotatitons Constructors Methods The private modifier is default on: Fields

by Tamas Miklossy

Apr 25, 2018

3 min. reading time
Eclipse, Xtext, GEF, english, Software Development, Language Engineering

Pro Tip: Visualizing Xtext Grammar with Eclipse GEF

The Xtext grammar is the central component when developing DSL workbenches based on the Xtext framework. In case of complex DSLs, analyzing the graphical representation of *.xtext files can be useful to understand the structure of the defined grammar rules.

by Tamas Miklossy

Feb 19, 2018

3 min. reading time
Eclipse, Xtext, GEF, Software Development

Editing Graphviz *.dot files with the GEF DOT Editor

Graphviz *.dot files are usual text files containing the textual representation of graph definitions. The structure of these *.dot files are defined by the DOT Language that provides more than 150 graph, subgraph, node and edge attributes to influence the graph ...

by Tamas Miklossy

Oct 19, 2016

6 min. reading time

Getting started with Eclipse GEF – the Mindmap Tutorial

Graphical Editing Framework (GEF) 5.1.0 Release

How to reference UML elements from Xtext DSLs

Combining EMF Models with Xtext DSLs

Eclipse GEF DOT – Graphical Views on Xtext DSLs

Adding GEF DOT-based visualization support to the Eclipse IDE

Pro Tip: Implementing JUnit Test Cases in Xtend

Xtend 2.14 – Unnecessary modifiers validation

Pro Tip: Visualizing Xtext Grammar with Eclipse GEF

Editing Graphviz *.dot files with the GEF DOT Editor