Uses of Interface
org.apache.hadoop.mapred.Partitioner

Packages that use Partitioner

org.apache.hadoop.mapred
org.apache.hadoop.mapred.lib

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

static <K extends WritableComparable,V extends Writable> Writable

MapFileOutputFormat.getEntry(org.apache.hadoop.io.MapFile.Reader[] 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.