| Package | Description | 
|---|---|
| com.hazelcast.mapreduce.impl | This package contains the default implementation for the map reduce framework
 internals. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | MapKeyValueSource<K,V>This  KeyValueSourceimplementation is used inKeyValueSource.fromMap(com.hazelcast.core.IMap)to generate a default
 implementation based on a HazelcastIMap. | 
| class  | MultiMapKeyValueSource<K,V>This  KeyValueSourceimplementation is used inKeyValueSource.fromMultiMap(com.hazelcast.core.MultiMap)to generate a default
 implementation based on a HazelcastMultiMap. | 
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