org.openimaj.util.hash.modifier

Class ModuloModifier<O>

java.lang.Object

org.openimaj.util.hash.modifier.HashModifier<O>

org.openimaj.util.hash.modifier.ModuloModifier<O>

Type Parameters:

O -

All Implemented Interfaces:

HashFunction<O>

Direct Known Subclasses:

LSBModifier

public class ModuloModifier<O>
extends HashModifier<O>

Modify the underlying hash function by applying the modulus to the value. This has the effect of reducing the range of values the hash function can take.

Author:

Jonathon Hare (jsh2@ecs.soton.ac.uk)

Field Summary

Fields inherited from class org.openimaj.util.hash.modifier.HashModifier

hashFunction

Constructor Summary

Constructors

Constructor and Description
ModuloModifier(HashFunction<O> hashFunction, int range) Construct with the given hash function and range.

Method Summary

Modifier and Type	Method and Description
int	computeHashCode(O object) Compute the hash code for the object

Methods inherited from class java.lang.Object

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

Constructor Detail

ModuloModifier

public ModuloModifier(HashFunction<O> hashFunction,
                      int range)

Construct with the given hash function and range. The output hash values will be between 0 and range.

Parameters:

hashFunction - the hash function

range - the range

Method Detail

computeHashCode

public int computeHashCode(O object)

Description copied from interface: HashFunction

Compute the hash code for the object

Parameters:

object - the object

Returns:

the hash code