org.apache.hive.common.util

Class HashCodeUtil

java.lang.Object

org.apache.hive.common.util.HashCodeUtil

public class HashCodeUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
HashCodeUtil()

Method Summary

Modifier and Type	Method and Description
static void	calculateBytesArrayHashCodes(byte[][] bytesArrays, int[] starts, int[] lengths, int[] valueSelected, int[] hashCodes, int count)
static int	calculateBytesHashCode(byte[] keyBytes, int keyStart, int keyLength)
static int	calculateIntHashCode(int key)
static void	calculateLongArrayHashCodes(long[] longs, int[] hashCodes, int count)
static int	calculateLongHashCode(long key)
static int	murmurHash(byte[] data, int offset, int length)

Methods inherited from class java.lang.Object

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

Constructor Detail

HashCodeUtil

public HashCodeUtil()

Method Detail

calculateIntHashCode

public static int calculateIntHashCode(int key)

calculateLongHashCode

public static int calculateLongHashCode(long key)

calculateLongArrayHashCodes

public static void calculateLongArrayHashCodes(long[] longs,
                                               int[] hashCodes,
                                               int count)

calculateBytesHashCode

public static int calculateBytesHashCode(byte[] keyBytes,
                                         int keyStart,
                                         int keyLength)

calculateBytesArrayHashCodes

public static void calculateBytesArrayHashCodes(byte[][] bytesArrays,
                                                int[] starts,
                                                int[] lengths,
                                                int[] valueSelected,
                                                int[] hashCodes,
                                                int count)

murmurHash

public static int murmurHash(byte[] data,
                             int offset,
                             int length)