code: public Record getChild(String key)
     {
        Record result = null;
        if (key != null)
        {
           for (Record record : m_records)
           {
              if (key.equals(record.getField()))
              {
                 result = record;
                 break;
              }
           }
        }
        return result;
     }
docs: Retrieve a child record by name.
  
  @param key child record name
  @return child record