See: Description
| Class | Description | 
|---|---|
| BufferedExternalSorter | Sorterthat will use in memory sorting until the values can't fit into memory and will
 then fall back to external sorting. | 
| BufferedExternalSorter.Options | Contains configuration for the sorter. | 
| ExternalSorter | Does an external sort of the provided values. | 
| ExternalSorter.Options | ExternalSorter.Optionscontains configuration of the sorter. | 
| SortValues<PrimaryKeyT,SecondaryKeyT,ValueT> | SortValues<PrimaryKeyT, SecondaryKeyT, ValueT>takes aPCollection<KV<PrimaryKeyT,
 Iterable<KV<SecondaryKeyT, ValueT>>>>with elements consisting of a primary key and iterables
 over<secondary key, value>pairs, and returns aPCollection<KV<PrimaryKeyT,
 Iterable<KV<SecondaryKeyT, ValueT>>>of the same elements but with values sorted by a secondary
 key. | 
| Enum | Description | 
|---|---|
| ExternalSorter.Options.SorterType | Sorter type. |