Class ShortFloatScatterMap

java.lang.Object

com.carrotsearch.hppc.ShortFloatHashMap

com.carrotsearch.hppc.ShortFloatScatterMap

All Implemented Interfaces:

Preallocable, ShortFloatAssociativeContainer, ShortFloatMap, Cloneable, Iterable<ShortFloatCursor>

@Generated(date="2024-05-16T08:18:11+0000",
           value="KTypeVTypeScatterMap.java")
public class ShortFloatScatterMap
extends ShortFloatHashMap

Same as ShortFloatHashMap but does not implement per-instance key mixing strategy and uses a simpler (faster) bit distribution function.

Note: read about important differences between hash and scatter sets.

Nested Class Summary

Nested classes/interfaces inherited from class ShortFloatHashMap

ShortFloatHashMap.KeysContainer

Field Summary

Fields inherited from class ShortFloatHashMap

assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values

Constructor Summary

Constructors

Constructor	Description
ShortFloatScatterMap()	New instance with sane defaults.
ShortFloatScatterMap(int expectedElements)	New instance with sane defaults.
ShortFloatScatterMap(int expectedElements, double loadFactor)	New instance with sane defaults.

Method Summary

Modifier and Type	Method	Description
static ShortFloatScatterMap	from(short[] keys, float[] values)	Creates a hash map from two index-aligned arrays of key-value pairs.
protected int	hashKey(short key)	Returns a hash code for the given key.

Methods inherited from class ShortFloatHashMap

addTo, allocateBuffers, allocateThenInsertThenRehash, clear, clone, containsKey, ensureCapacity, equalElements, equals, forEach, forEach, get, getOrDefault, hashCode, indexExists, indexGet, indexInsert, indexOf, indexReplace, isEmpty, iterator, keys, put, putAll, putAll, putIfAbsent, putOrAdd, rehash, release, remove, removeAll, removeAll, removeAll, shiftConflictingKeys, size, toString, values, verifyLoadFactor, visualizeKeyDistribution

Methods inherited from class Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Iterable

forEach, spliterator

Constructor Details

ShortFloatScatterMap

public ShortFloatScatterMap()

New instance with sane defaults.

ShortFloatScatterMap

public ShortFloatScatterMap(int expectedElements)

New instance with sane defaults.

ShortFloatScatterMap

public ShortFloatScatterMap(int expectedElements,
 double loadFactor)

New instance with sane defaults.

Method Details

hashKey

protected int hashKey(short key)

Description copied from class: ShortFloatHashMap

Returns a hash code for the given key.

The default implementation mixes the hash of the key with ShortFloatHashMap.keyMixer to differentiate hash order of keys between hash containers. Helps alleviate problems resulting from linear conflict resolution in open addressing.

The output from this function should evenly distribute keys across the entire integer range.

Overrides:

hashKey in class ShortFloatHashMap

from

public static ShortFloatScatterMap from(short[] keys,
 float[] values)

Creates a hash map from two index-aligned arrays of key-value pairs.