in common/src/main/java/org/apache/flink/training/exercises/common/datatypes/TaxiRide.java [100:121]
public String toString() {
return rideId
+ ","
+ (isStart ? "START" : "END")
+ ","
+ eventTime.toString()
+ ","
+ startLon
+ ","
+ startLat
+ ","
+ endLon
+ ","
+ endLat
+ ","
+ passengerCnt
+ ","
+ taxiId
+ ","
+ driverId;
}