Uses of Class
com.google.appengine.tools.mapreduce.Reducer

Packages that use Reducer

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

Uses of Reducer in com.google.appengine.tools.mapreduce

Methods in com.google.appengine.tools.mapreduce with parameters of type Reducer

Modifier and Type	Method and Description
MapReduceSpecification.Builder<I,K,V,O,R>	MapReduceSpecification.Builder.setReducer(Reducer<K,V,? extends O> reducer)

Constructors in com.google.appengine.tools.mapreduce with parameters of type Reducer

Constructor and Description
MapReduceSpecification.Builder(Input<I> input, Mapper<I,K,V> mapper, Reducer<K,V,O> reducer, Output<O,R> output)

Uses of Reducer in com.google.appengine.tools.mapreduce.impl

Methods in com.google.appengine.tools.mapreduce.impl that return Reducer

Modifier and Type	Method and Description
static Reducer	InProcessUtil.getReducer(MapReduceSpecification spec)

Constructors in com.google.appengine.tools.mapreduce.impl with parameters of type Reducer

Constructor and Description
ReduceShardTask(String mrJobId, int shardNumber, int shardCount, InputReader<KeyValue<K,Iterator<V>>> in, Reducer<K,V,O> reducer, OutputWriter<O> out, long millisPerSlice)

Uses of Reducer in com.google.appengine.tools.mapreduce.reducers

Subclasses of Reducer in com.google.appengine.tools.mapreduce.reducers

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