TimeHolder timeHolder = new TimeHolder();
timeHolder.value = fieldReader.readInteger();
mapWriter.time(MappifyUtility.fieldValue).write(timeHolder);
break;
case TIMESTAMP:
TimeStampHolder timeStampHolder = new TimeStampHolder();
timeStampHolder.value = fieldReader.readLong();
mapWriter.timeStamp(MappifyUtility.fieldValue).write(timeStampHolder);
break;
case INTERVAL:
IntervalHolder intervalHolder = new IntervalHolder();