Eclipse EMF Facet 1.1.0 Release Review

End Date of the Review Period

Reviews run for a minimum of one week. The outcome of the review is decided on this date. This is the last day to make comments or ask questions about this review.




The EMF Facet 1.1.0 release is focused on maintenance.

Architectural Issues

The features provided by EMF Facet 1.1.0, as part of Luna are :

  • A query abstraction mechanism allowing language-independent querying on models;
  • The facet mechanism for dynamically extending the meta-models;
  • A model customization mechanism allowing to change the rendering of model element in function of their state.
  • Customizable widget

EMF Facet 1.1.0 has been build using Tycho. The source code is stored in Git.

Security Issues

No security issuse is knonw.

Non-Code Aspects

All the documentation is embedded in help plug-ins and is also available at

The EMF Facet website provides a direct access to all the related resources.

Usability Details

EMF Facet is a solution to extend existing Ecore meta-models without having to modify them.

The idea is to provide non-intrusive mechanisms to add new features (types, attributes, operations and references) to a meta-model and to customize the existing features by adding extra properties (icons, labels, etc.)

For example, EMF Facet is used by :

  • MoDisco, to adapt source code meta-models to specific use cases (eg. Java code pattern matching);
End of Life

Each API deprecation is tracked by a bug tagged [Deprecated].

All the deprecated API and features declared before 0.4.2 have been removed.


The EMF Facet does not implement any standards.

This release is part of Neon