- Type Parameters:
OK - the key type
OV - the value type
- All Known Implementing Classes:
- Enclosing interface:
public static interface MapReduce.ReduceEmitter<OK,OV>
The ReduceEmitter is used to emit key/value pairs from the combine() and reduce() stages of the MapReduce job.
The implementation of ReduceEmitter is up to the vendor, not the developer.