Uses of Interface

Packages that use Partitioner

Uses of Partitioner in org.apache.hadoop.mapred

Methods in org.apache.hadoop.mapred that return types with arguments of type Partitioner
 Class<? extends Partitioner> JobConf.getPartitionerClass()
          Get the Partitioner used to partition Mapper-outputs to be sent to the Reducers.

Methods in org.apache.hadoop.mapred with parameters of type Partitioner
<K extends WritableComparable,V extends Writable>
MapFileOutputFormat.getEntry([] readers, Partitioner<K,V> partitioner, K key, V value)
          Get an entry from output generated by this class.

Method parameters in org.apache.hadoop.mapred with type arguments of type Partitioner
 void JobConf.setPartitionerClass(Class<? extends Partitioner> theClass)
          Set the Partitioner class used to partition Mapper-outputs to be sent to the Reducers.

Uses of Partitioner in org.apache.hadoop.mapred.lib

Classes in org.apache.hadoop.mapred.lib that implement Partitioner
 class BinaryPartitioner<V>
          Partition BinaryComparable keys using a configurable part of the bytes array returned by BinaryComparable.getBytes().
 class HashPartitioner<K2,V2>
          Partition keys by their Object.hashCode().
 class KeyFieldBasedPartitioner<K2,V2>
          Defines a way to partition keys based on certain key fields (also see KeyFieldBasedComparator.
 class TotalOrderPartitioner<K extends WritableComparable<?>,V>
          Partitioner effecting a total order by reading split points from an externally generated source.

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