Uses of Class
org.apache.hadoop.mapreduce.Partitioner

Packages that use Partitioner

Package	Description
org.apache.hadoop.examples	Hadoop example code.
org.apache.hadoop.mapreduce
org.apache.hadoop.mapreduce.lib.map
org.apache.hadoop.mapreduce.lib.output
org.apache.hadoop.mapreduce.lib.partition
org.apache.hadoop.mapreduce.lib.reduce
org.apache.hadoop.mapreduce.task

Uses of Partitioner in org.apache.hadoop.examples

Subclasses of Partitioner in org.apache.hadoop.examples

Modifier and Type	Class and Description
static class	SecondarySort.FirstPartitioner Partition based on the first part of the pair.

Uses of Partitioner in org.apache.hadoop.mapreduce

Methods in org.apache.hadoop.mapreduce that return types with arguments of type Partitioner

Modifier and Type	Method and Description
java.lang.Class<? extends Partitioner<?,?>>	JobContext.getPartitionerClass() Get the Partitioner class for the job.

Method parameters in org.apache.hadoop.mapreduce with type arguments of type Partitioner

Modifier and Type	Method and Description
void	Job.setPartitionerClass(java.lang.Class<? extends Partitioner> cls) Set the Partitioner for the job.

Uses of Partitioner in org.apache.hadoop.mapreduce.lib.map

Methods in org.apache.hadoop.mapreduce.lib.map that return types with arguments of type Partitioner

Modifier and Type	Method and Description
java.lang.Class<? extends Partitioner<?,?>>	WrappedMapper.Context.getPartitionerClass()

Uses of Partitioner in org.apache.hadoop.mapreduce.lib.output

Methods in org.apache.hadoop.mapreduce.lib.output with parameters of type Partitioner

Modifier and Type	Method and Description
static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> org.apache.hadoop.io.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.

Uses of Partitioner in org.apache.hadoop.mapreduce.lib.partition

Subclasses of Partitioner in org.apache.hadoop.mapreduce.lib.partition

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<K,V> 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 org.apache.hadoop.io.WritableComparable<?>,V> Partitioner effecting a total order by reading split points from an externally generated source.

Uses of Partitioner in org.apache.hadoop.mapreduce.lib.reduce

Methods in org.apache.hadoop.mapreduce.lib.reduce that return types with arguments of type Partitioner

Modifier and Type	Method and Description
java.lang.Class<? extends Partitioner<?,?>>	WrappedReducer.Context.getPartitionerClass()

Uses of Partitioner in org.apache.hadoop.mapreduce.task

Methods in org.apache.hadoop.mapreduce.task that return types with arguments of type Partitioner

Modifier and Type	Method and Description
java.lang.Class<? extends Partitioner<?,?>>	JobContextImpl.getPartitionerClass() Get the Partitioner class for the job.