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. |
Modifier and Type | Method and Description |
---|---|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.chunkSize(int chunkSize)
Defines the number of elements per chunk.
|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.keyPredicate(KeyPredicate<EntryKey> predicate)
Defines the
KeyPredicate implementation to preselect keys the MapReduce task will be executed on. |
<KeyOut,ValueOut> |
Job.mapper(Mapper<KeyIn,ValueIn,KeyOut,ValueOut> mapper)
Defines the mapper for this task.
|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.onKeys(EntryKey... keys)
Defines keys to execute the mapper and a possibly defined reducer against.
|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.onKeys(Iterable<EntryKey> keys)
Defines keys to execute the mapper and a possibly defined reducer against.
|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.topologyChangedStrategy(TopologyChangedStrategy topologyChangedStrategy)
Defines the strategy to handle topology changes while executing the map reduce job.
|
Copyright © 2014 Hazelcast, Inc.. All Rights Reserved.