@Override
  public Map<String, Object> getFingerprint() {
    Map<String, Object> map = new HashMap<>();
    List<String> families = new ArrayList<>(this.familyMap.entrySet().size());
    map.put("families", families);
    for (Map.Entry<byte[], NavigableSet<byte[]>> entry : this.familyMap.entrySet()) {
      families.add(Bytes.toStringBinary(entry.getKey()));
    }
    return map;
  }
Compile the table and column family (i.e. schema) information into a String. Useful for parsing
and aggregation by debugging, logging, and administration tools.
hbase-client/src/main/java/org/apache/hadoop/hbase/client/Get.java