void loadIndices(NodeReference indexGlobal) {
        if (!indexGlobal.exists()) {
            return;
        }
        indices = new ArrayList<String>();
        isUniqueIndex = new HashMap<String,Boolean>();
        ValueList list = indexGlobal.getList();
        for (int i=0;i<list.length()/2;i++) {
            String iName = list.getNextString();
            indices.add(iName);
            if (list.getNextInt() == 1) {
                isUniqueIndex.put(iName,Boolean.TRUE);
            } else {
                isUniqueIndex.put(iName,Boolean.FALSE);
            }
        }
    }