public abstract class TimeRangeTracker
Stores minimum and maximum timestamp values, it is [minimumTimestamp, maximumTimestamp] in
Use this class at write-time ONLY. Too much synchronization to use at read time
Use TimeRange at read time instead of this. See toTimeRange() to make TimeRange to use.
MemStores use this class to track minimum and maximum timestamps. The TimeRangeTracker made by
the MemStore is passed to the StoreFile for it to write out as part a flush in the the file
metadata. If no memstore involved -- i.e. a compaction -- then the StoreFile will calculate its
own TimeRangeTracker as it appends. The StoreFile serialized TimeRangeTracker is used
at read time via an instance of TimeRange to test if Cells fit the StoreFile TimeRange.