net.jpountz.xxhash

Class XXHash32

java.lang.Object

net.jpountz.xxhash.XXHash32

public abstract class XXHash32
extends java.lang.Object

A 32-bits hash.

Instances of this class are thread-safe.

Constructor Summary

Constructors

Constructor and Description
XXHash32()

Method Summary

Modifier and Type	Method and Description
abstract int	hash(byte[] buf, int off, int len, int seed) Computes the 32-bits hash of buf[off:off+len] using seed seed.
int	hash(java.nio.ByteBuffer buf, int seed) Computes the hash of the given ByteBuffer.
abstract int	hash(java.nio.ByteBuffer buf, int off, int len, int seed) Computes the hash of the given slice of the ByteBuffer.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

XXHash32

public XXHash32()

Method Detail

hash

public abstract int hash(byte[] buf,
                         int off,
                         int len,
                         int seed)

Computes the 32-bits hash of buf[off:off+len] using seed seed.

Parameters:

buf - the input data

off - the start offset in buf

len - the number of bytes to hash

seed - the seed to use

Returns:

the hash value

hash

public abstract int hash(java.nio.ByteBuffer buf,
                         int off,
                         int len,
                         int seed)

Computes the hash of the given slice of the ByteBuffer. position and limit are not modified.

Parameters:

buf - the input data

off - the start offset in buf

len - the number of bytes to hash

seed - the seed to use

Returns:

the hash value

hash

public final int hash(java.nio.ByteBuffer buf,
                      int seed)

Computes the hash of the given ByteBuffer. The position is moved in order to reflect bytes which have been read.

Parameters:

buf - the input data

seed - the seed to use

Returns:

the hash value

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object