| Package | Description | 
|---|---|
| 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.impl | This package contains the default implementation for the map reduce framework
 internals. | 
| Modifier and Type | Method and Description | 
|---|---|
| ReducingSubmittableJob<EntryKey,KeyIn,ValueIn> | ReducingSubmittableJob. chunkSize(int chunkSize)Deprecated.  Defines the number of elements per chunk. | 
| ReducingSubmittableJob<EntryKey,KeyIn,ValueIn> | ReducingSubmittableJob. keyPredicate(KeyPredicate<EntryKey> predicate)Deprecated.  Defines the  KeyPredicateimplementation to preselect keys the MapReduce task
 will be executed on. | 
| ReducingSubmittableJob<EntryKey,KeyIn,ValueIn> | ReducingSubmittableJob. onKeys(EntryKey... keys)Deprecated.  Defines keys to execute the mapper and a possibly defined reducer against. | 
| ReducingSubmittableJob<EntryKey,KeyIn,ValueIn> | ReducingSubmittableJob. onKeys(Iterable<EntryKey> keys)Deprecated.  Defines keys to execute the mapper and a possibly defined reducer against. | 
| <ValueOut> ReducingSubmittableJob<EntryKey,KeyIn,ValueOut> | MappingJob. reducer(ReducerFactory<? super KeyIn,? super ValueIn,? extends ValueOut> reducerFactory)Deprecated.  Defines the  ReducerFactoryfor this task. | 
| <ValueOut> ReducingSubmittableJob<EntryKey,KeyIn,ValueOut> | ReducingJob. reducer(ReducerFactory<KeyIn,ValueIn,ValueOut> reducerFactory)Deprecated.  Defines the  ReducerFactoryfor this task. | 
| ReducingSubmittableJob<EntryKey,KeyIn,ValueIn> | ReducingSubmittableJob. topologyChangedStrategy(TopologyChangedStrategy topologyChangedStrategy)Deprecated.  Defines the strategy to handle topology changes while executing the map reduce job. | 
| Modifier and Type | Class and Description | 
|---|---|
| protected class  | AbstractJob.ReducingSubmittableJobImpl<EntryKey,Key,Value>This class is just used to comply to the public DSL style API | 
| Modifier and Type | Method and Description | 
|---|---|
| ReducingSubmittableJob<EntryKey,Key,Value> | AbstractJob.ReducingSubmittableJobImpl. chunkSize(int chunkSize) | 
| ReducingSubmittableJob<EntryKey,Key,Value> | AbstractJob.ReducingSubmittableJobImpl. keyPredicate(KeyPredicate<EntryKey> predicate) | 
| ReducingSubmittableJob<EntryKey,Key,Value> | AbstractJob.ReducingSubmittableJobImpl. onKeys(EntryKey... keys) | 
| ReducingSubmittableJob<EntryKey,Key,Value> | AbstractJob.ReducingSubmittableJobImpl. onKeys(Iterable<EntryKey> keys) | 
| <ValueOut> ReducingSubmittableJob<EntryKey,Key,ValueOut> | AbstractJob.MappingJobImpl. reducer(ReducerFactory<? super Key,? super Value,? extends ValueOut> reducerFactory) | 
| <ValueOut> ReducingSubmittableJob<EntryKey,Key,ValueOut> | AbstractJob.ReducingJobImpl. reducer(ReducerFactory<Key,Value,ValueOut> reducerFactory) | 
| ReducingSubmittableJob<EntryKey,Key,Value> | AbstractJob.ReducingSubmittableJobImpl. topologyChangedStrategy(TopologyChangedStrategy topologyChangedStrategy) | 
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