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 |
---|---|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.chunkSize(int chunkSize)
Defines the number of elements per chunk.
|
MappingJob<EntryKey,KeyIn,ValueIn> |
MappingJob.keyPredicate(KeyPredicate<? super EntryKey> predicate)
Defines the
KeyPredicate implementation to preselect keys that 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<? extends 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.
|
Modifier and Type | Class and Description |
---|---|
protected class |
AbstractJob.MappingJobImpl<EntryKey,Key,Value>
This class is just used to comply to the public DSL style API
|
Modifier and Type | Method and Description |
---|---|
MappingJob<EntryKey,Key,Value> |
AbstractJob.MappingJobImpl.chunkSize(int chunkSize) |
MappingJob<EntryKey,Key,Value> |
AbstractJob.MappingJobImpl.keyPredicate(KeyPredicate<? super EntryKey> predicate) |
<KeyOut,ValueOut> |
AbstractJob.mapper(Mapper<KeyIn,ValueIn,KeyOut,ValueOut> mapper) |
MappingJob<EntryKey,Key,Value> |
AbstractJob.MappingJobImpl.onKeys(EntryKey... keys) |
MappingJob<EntryKey,Key,Value> |
AbstractJob.MappingJobImpl.onKeys(Iterable<? extends EntryKey> keys) |
MappingJob<EntryKey,Key,Value> |
AbstractJob.MappingJobImpl.topologyChangedStrategy(TopologyChangedStrategy topologyChangedStrategy) |
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