oldGroupType, groupType));
oldGroupType, groupType, !oldGroupTypeESet));
    public void setGroupType(String newGroupType)    {        String oldGroupType = groupType;        groupType = newGroupType;        if (eNotificationRequired())            eNotify(new ENotificationImpl(this, Notification.SET, DataPackage.SERIES_GROUPING__GROUP_TYPE,                oldGroupType, groupType));    }