case CONTENTASSIST_COMPLETE_PREFIX: if (fContentAssistant instanceof IContentAssistantExtension) { msg= ((IContentAssistantExtension) fContentAssistant).completePrefix(); setStatusLineErrorMessage(msg); return; } else break;
		public void doOperation(int operation) {					if (getTextWidget() == null)				return;						switch (operation) {				case CONTENTASSIST_PROPOSALS:					String msg= fContentAssistant.showPossibleCompletions();					setStatusLineErrorMessage(msg);					return;				case CORRECTIONASSIST_PROPOSALS:					msg= fCorrectionAssistant.showPossibleCompletions();					setStatusLineErrorMessage(msg);					return;				case UNDO:					fIgnoreTextConverters= true;					break;				case REDO:					fIgnoreTextConverters= true;					break;			}						super.doOperation(operation);		}