| Package | Description | 
|---|---|
| com.hazelcast.client.impl.protocol.task.mapreduce | 
 Client protocol tasks implementations for map reduce 
 | 
| com.hazelcast.mapreduce | 
 This package contains the MapReduce API definition for Hazelcast. 
All map reduce operations running in a distributed manner inside the active Hazelcast cluster.  | 
| com.hazelcast.mapreduce.aggregation | 
 This package contains the aggregation API and the convenience helper classes
 to retrieve predefined aggregation implementations. 
 | 
| com.hazelcast.mapreduce.aggregation.impl | 
 This package contains a set of predefined aggregation implementations 
 | 
| com.hazelcast.mapreduce.impl | 
 This package contains the default implementation for the map reduce framework
 internals. 
 | 
| com.hazelcast.mapreduce.impl.operation | 
 This package contains all remote operations that are needed to control work on
 supervising or worker nodes. 
 | 
| com.hazelcast.mapreduce.impl.task | 
 This package contains the base implementation for a standard map reduce job. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
protected CombinerFactory | 
MapReduceForMapMessageTask.getCombinerFactory()  | 
protected CombinerFactory | 
MapReduceForSetMessageTask.getCombinerFactory()  | 
protected abstract CombinerFactory | 
AbstractMapReduceTask.getCombinerFactory()  | 
protected CombinerFactory | 
MapReduceForCustomMessageTask.getCombinerFactory()  | 
protected CombinerFactory | 
MapReduceForListMessageTask.getCombinerFactory()  | 
protected CombinerFactory | 
MapReduceForMultiMapMessageTask.getCombinerFactory()  | 
| Modifier and Type | Method and Description | 
|---|---|
<ValueOut> ReducingJob<EntryKey,KeyIn,ValueOut> | 
MappingJob.combiner(CombinerFactory<? super KeyIn,? super ValueIn,? extends ValueOut> combinerFactory)
Deprecated.  
Defines the  
CombinerFactory for this task. | 
| Modifier and Type | Method and Description | 
|---|---|
CombinerFactory | 
Aggregation.getCombinerFactory()
Deprecated.  
Returns the CombinerFactory for this aggregation to pre-reduce values on mapping
 nodes. 
 | 
| Modifier and Type | Field and Description | 
|---|---|
protected CombinerFactory<?,?,?> | 
AbstractJob.combinerFactory  | 
| Modifier and Type | Method and Description | 
|---|---|
<ValueOut> ReducingJob<EntryKey,Key,ValueOut> | 
AbstractJob.MappingJobImpl.combiner(CombinerFactory<? super Key,? super Value,? extends ValueOut> combinerFactory)  | 
| Constructor and Description | 
|---|
KeyValueJobOperation(String name,
                    String jobId,
                    int chunkSize,
                    KeyValueSource<K,V> keyValueSource,
                    Mapper mapper,
                    CombinerFactory combinerFactory,
                    ReducerFactory reducerFactory,
                    boolean communicateStats,
                    TopologyChangedStrategy topologyChangedStrategy)  | 
| Modifier and Type | Method and Description | 
|---|---|
CombinerFactory | 
JobTaskConfiguration.getCombinerFactory()  | 
| Constructor and Description | 
|---|
DefaultContext(CombinerFactory<KeyIn,ValueIn,?> combinerFactory,
              MapCombineTask mapCombineTask)  | 
JobTaskConfiguration(Address jobOwner,
                    NodeEngine nodeEngine,
                    int chunkSize,
                    String name,
                    String jobId,
                    Mapper mapper,
                    CombinerFactory combinerFactory,
                    ReducerFactory reducerFactory,
                    KeyValueSource keyValueSource,
                    boolean communicateStats,
                    TopologyChangedStrategy topologyChangedStrategy)  | 
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