org.apache.parquet.column.values.bloomfilter

Class XxHash

java.lang.Object

org.apache.parquet.column.values.bloomfilter.XxHash

All Implemented Interfaces:

HashFunction

public class XxHash
extends Object
implements HashFunction

The implementation of HashFunction interface. The XxHash uses XXH64 version xxHash with a seed of 0.

Constructor Summary

Constructors

Constructor and Description
XxHash()

Method Summary

Modifier and Type	Method and Description
long	hashByteBuffer(ByteBuffer input) compute the hash value for a ByteBuffer.
long	hashBytes(byte[] input) compute the hash value for a byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

XxHash

public XxHash()

Method Detail

hashBytes

public long hashBytes(byte[] input)

Description copied from interface: HashFunction

compute the hash value for a byte array.

Specified by:

hashBytes in interface HashFunction

Parameters:

input - the input byte array

Returns:

a result of long value.

hashByteBuffer

public long hashByteBuffer(ByteBuffer input)

Description copied from interface: HashFunction

compute the hash value for a ByteBuffer.

Specified by:

hashByteBuffer in interface HashFunction

Parameters:

input - the input ByteBuffer

Returns:

a result of long value.