class GtidSet {

    @Override
    public String toString() {
        List<String> gtids = new ArrayList<String>();
        for (UUIDSet uuidSet : uuidSetsByServerId.values()) {
            gtids.add(uuidSet.toString());
        }
        return String.join(",", gtids);
    }

    protected  GtidSet(Map<String, UUIDSet> uuidSetsByServerId);
    public  GtidSet(String gtids);

}