In this post we demonstrated how EWL from the Epsilon GMT component can be used to automate model refactoring (in-place model transformation in general) in GMF-based editors. Since version 1.3.2, the same wizards can be executed in EMF tree-based editors as well. The following screenshots demonstrate the application of the CreateAssociationClassCase1 wizard (originally described by Ed Merks here) in the default ECore tree-based editor.
The original ECore metamodel:
Selecting the classes and applying the wizard:
The ECore metamodel after the wizard has executed: