Package com.google.appengine.tools.mapreduce.reducers

Class Summary

Class	Description
IdentityReducer<K,V>	A passthrough reducer that passes it's input to it's output.
KeyProjectionReducer<K,V>	Reducer that emits the keys that occur in its input, discarding the values.
NoReducer<K,V,O>	Deprecated Consider using MapJob instead.
ValueProjectionReducer<K,V>	Reducer that emits the values that occur in its input, discarding the keys.