org.apache.hadoop.hive.ql.io

Class HiveKey

java.lang.Object

org.apache.hadoop.io.BinaryComparable

org.apache.hadoop.io.BytesWritable

org.apache.hadoop.hive.ql.io.HiveKey

All Implemented Interfaces:

Comparable<org.apache.hadoop.io.BinaryComparable>, org.apache.hadoop.io.Writable, org.apache.hadoop.io.WritableComparable<org.apache.hadoop.io.BinaryComparable>

public class HiveKey
extends org.apache.hadoop.io.BytesWritable

HiveKey is a simple wrapper on Text which allows us to set the hashCode easily. hashCode is used for hadoop partitioner.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HiveKey.Comparator A Comparator optimized for HiveKey.

Constructor Summary

Constructors

Constructor and Description
HiveKey()
HiveKey(byte[] bytes, int hashcode)

Method Summary

Methods

Modifier and Type	Method and Description
int	getDistKeyLength()
int	hashCode()
void	setDistKeyLength(int distKeyLength)
void	setHashCode(int myHashCode)

Methods inherited from class org.apache.hadoop.io.BytesWritable

copyBytes, equals, get, getBytes, getCapacity, getLength, getSize, readFields, set, set, setCapacity, setSize, toString, write

Methods inherited from class org.apache.hadoop.io.BinaryComparable

compareTo, compareTo

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Comparable

compareTo

Constructor Detail

HiveKey

public HiveKey()

HiveKey

public HiveKey(byte[] bytes,
       int hashcode)

Method Detail

setHashCode

public void setHashCode(int myHashCode)

hashCode

public int hashCode()

Overrides:

hashCode in class org.apache.hadoop.io.BytesWritable

setDistKeyLength

public void setDistKeyLength(int distKeyLength)

getDistKeyLength

public int getDistKeyLength()