public static boolean isRegistered(final String opt_,
			final SETTING_TYPE settingType) {
		if (settingType.equals(SETTING_TYPE.BOOL)) {
			return booleanOptions.containsKey(opt_);
		} else if (settingType.equals(SETTING_TYPE.INT)) {
			return integerOptions.containsKey(opt_);
		} else if (settingType.equals(SETTING_TYPE.LONG)) {
			return longOptions.containsKey(opt_);
		} else if (settingType.equals(SETTING_TYPE.FLOAT)) {
			return floatOptions.containsKey(opt_);
		} else if (settingType.equals(SETTING_TYPE.DOUBLE)) {
			return doubleOptions.containsKey(opt_);
		} else if (settingType.equals(SETTING_TYPE.STRING)) {
			return stringOptions.containsKey(opt_);
		} else if (settingType.equals(SETTING_TYPE.PATH)) {
			return pathOptions.containsKey(opt_);
		}
		return false;
	}