org.apache.hadoop.hive.ql.io

Class DefaultHivePartitioner<K2,V2>

java.lang.Object

org.apache.hadoop.mapred.lib.HashPartitioner<K2,V2>

org.apache.hadoop.hive.ql.io.DefaultHivePartitioner<K2,V2>

All Implemented Interfaces:

HivePartitioner<K2,V2>, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Partitioner<K2,V2>

public class DefaultHivePartitioner<K2,V2>
extends org.apache.hadoop.mapred.lib.HashPartitioner<K2,V2>
implements HivePartitioner<K2,V2>

Partition keys by their Object.hashCode().

Constructor Summary

Constructors

Constructor and Description
DefaultHivePartitioner()

Method Summary

Methods

Modifier and Type	Method and Description
int	getBucket(K2 key, V2 value, int numBuckets) Use Object.hashCode() to partition.

Methods inherited from class org.apache.hadoop.mapred.lib.HashPartitioner

configure, getPartition

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.mapred.Partitioner

getPartition

Methods inherited from interface org.apache.hadoop.mapred.JobConfigurable

configure

Constructor Detail

DefaultHivePartitioner

public DefaultHivePartitioner()

Method Detail

getBucket

public int getBucket(K2 key,
            V2 value,
            int numBuckets)

Use Object.hashCode() to partition.

Specified by:

getBucket in interface HivePartitioner<K2,V2>