undoAction = new UndoAction(editingDomain);
undoAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_UNDO));
actionBars.setGlobalActionHandler(ActionFactory.UNDO.getId(), undoAction);
redoAction = new RedoAction(editingDomain);
redoAction.setImageDescriptor(sharedImages.getImageDescriptor(ISharedImages.IMG_TOOL_REDO));
actionBars.setGlobalActionHandler(ActionFactory.REDO.getId(), redoAction);
actionBars.updateActionBars();
}