@Override
    public List<SpanBo> selectTransactionMetadata(final List<GetTraceInfo> getTraceInfoList) {
        Objects.requireNonNull(getTraceInfoList, "getTraceInfoList");

        final List<List<SpanBo>> selectedSpans = traceDao.selectSpans(getTraceInfoList);
        populateAgentNameListOfList(selectedSpans);

        return ListListUtils.toList(selectedSpans, getTraceInfoList.size());
    }
Queries for details on dots selected from the scatter chart.
web/src/main/java/com/navercorp/pinpoint/web/service/ScatterChartServiceImpl.java