Question

我想从单个提取查询中提取多个记录，为此我需要使用IN子句。但是当我运行它时，它不会返回任何记录。

public Map<String, List<EventDataRecords>> fetchEventdata_bkp(String interval, DateResolverResponse datePattern, List<AssetModelNode> entityIdList) throws ApplicationException {
    logger.info("Entered fetchEventdata***");
    Map<String,List<EventDataRecords>> eventDataResponseList = new HashMap<>();
    int startDt=0;
    int stopDt=0;
    int year=0;
    CountDownLatch latch;
    latch = new CountDownLatch(entityIdList.size());
    List<DateRange> dateRange = new ArrayList<>();
    dateRange = datePattern.getDateRange();
    long startTime = System.currentTimeMillis();
    logger.info("fetchEventdata Approach2 startTime**"+ startTime+"/Interval--"+interval);
    for(AssetModelNode entityId: entityIdList) {    
        List<EventDataRecords> rowList = new LinkedList<>();
        EventDataRecords eventDataRecords = new EventDataRecords();
        String assetId = entityId.getEntityId();
        try {
            if(interval.equals(BusinessConstants.DAY) && dateRange!=null) {
                for(DateRange currRange: dateRange) {
                    startDt= currRange.getStartDay();
                    stopDt= currRange.getStopDay();
                    year=currRange.getCurrentYear();
                    int dayDiffer = ((stopDt- startDt)> 0 ? (stopDt- startDt):0);
                    latch = new CountDownLatch(dayDiffer+1);
                    while(startDt<=stopDt) {
                        eventDataRecords = new EventDataRecords();  
                        Flux<AssetDailyTable> metricsDailyDataFlux = dataRepository.fetchDailyTableRecordsFlux(assetId,year,startDt);               
                        metricsDailyDataFlux.subscribe(new MetricsDailyDataFluxSubscriber(eventDataRecords, latch));
                            rowList.add(eventDataRecords);
                        startDt ++;                         
                    }
                }
                eventDataResponseList.put(assetId, rowList);
            }
        }catch (Exception e) {
            logger.error(e.getMessage());
        }
    }
    try {
        latch.await();//30, TimeUnit.MICROSECONDS);
    } catch (InterruptedException e) {
        logger.error("ERROR-0006: Unable to collate data, interrupted", e);
        Thread.currentThread().interrupt();
    }

    return eventDataResponseList;
}

@Repository
public interface IDataRepository extends ReactiveCassandraRepository<AssetDailyTable, AssetDailyTablePK>{

    @Query("SELECT * from dev_renwinddev_fx.event_metrics_asset_daily_data where assetid =?0 and year =?1 and day =?2")
    public Flux<AssetDailyTable> fetchDailyTableRecordsFlux(String assetid, int startYr, int startDay);

}

在当前设计中，我必须为每个日期循环播放。与其相反，我想通过-

List<Integers> days =[12,13,14,15];
fetchDailyTableRecordsFlux(assetId,year,days);

@Query("SELECT * from dev_renwinddev_fx.event_metrics_asset_daily_data where assetid =?0 and year =?1 and day IN ?2")

如何在ReactiveCassandraRepository查询中使用IN子句

0 个答案: