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

Packages that use Partitioner

Package	Description
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

Modifier and Type	Method and Description
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

Modifier and Type	Method and Description
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

Modifier and Type	Method and Description
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

Modifier and Type	Class and Description
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.