Implementations of BatchScanner support efficient lookups of many ranges in accumulo.
Use this when looking up lots of ranges and you expect each range to contain a small amount of data. Also only use this when you do not care about the
returned data being in sorted order.
If you want to lookup a few ranges and expect those ranges to contain a lot of data, then use the Scanner instead. Also, the Scanner will return data in
sorted order, this will not.