code: private ThriftRow getThriftRow(Object id, String columnFamily, Map<String, ThriftRow> thriftRows)
      {
          ThriftRow tr = thriftRows.get(columnFamily);
          if (tr == null)
          {
              tr = new ThriftRow();
              tr.setColumnFamilyName(columnFamily); // column-family name
              tr.setId(id); // Id
              thriftRows.put(columnFamily, tr);
          }
          return tr;
      }
docs: Gets the thrift row.
  
  @param id
  the id
  @param columnFamily
  the column family
  @param thriftRows
  the thrift rows
  @return the thrift row