CommandStack commandStack = new BasicCommandStack();
		EditingDomain domain = new AdapterFactoryEditingDomain(new E4AdapterFactory(), commandStack);
		
		bindingContext = new EMFDataBindingContext();

org.eclipse.ui.edit.undo

public class UndoHandler {

	@CanExecute
	public boolean canExecute(@Named(IServiceConstants.ACTIVE_PART) MPart mPart) {
		if(mPart.getObject() instanceof IEditingDomainProvider){
			EditingDomain editingDomain = ((IEditingDomainProvider)mPart.getObject()).getEditingDomain();
			return editingDomain.getCommandStack().canUndo();
		}
		return false;
	}

	@Execute
	public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart mPart) {
		System.out.println("execute");
		if(mPart.getObject() instanceof IEditingDomainProvider){
			EditingDomain editingDomain = ((IEditingDomainProvider)mPart.getObject()).getEditingDomain();
			editingDomain.getCommandStack().undo();
		}
	}

}