org.apache.ignite.internal.processors.query.stat

Class Hasher

java.lang.Object

org.apache.ignite.internal.processors.query.stat.Hasher

public class Hasher
extends Object

Implement Murmur8_128 hash function for byte arrays.

Constructor Summary

Constructors

Constructor and Description
Hasher()

Method Summary

Modifier and Type	Method and Description
long	fastHash(byte[] arr) Calculate hash by specified byte array.
long	fastHash(byte[] arr, int off, int len) Calculate hash by specified part of byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

Hasher

public Hasher()

Method Detail

fastHash

public long fastHash(byte[] arr)

Calculate hash by specified byte array.

Parameters:

arr - Array to calculate hash by.

Returns:

Hash value.

fastHash

public long fastHash(byte[] arr,
                     int off,
                     int len)

Calculate hash by specified part of byte array.

Parameters:

arr - Array to calculate hash by.

off - Offset.

len - Length.

Returns:

Hash value.