com.carrotsearch.hppc

Class IntFloatScatterMap

java.lang.Object

com.carrotsearch.hppc.IntFloatHashMap

com.carrotsearch.hppc.IntFloatScatterMap

All Implemented Interfaces:

IntFloatAssociativeContainer, IntFloatMap, Preallocable, java.lang.Cloneable, java.lang.Iterable<IntFloatCursor>

@Generated(date="2023-04-24T17:14:49+0800",
           value="KTypeVTypeScatterMap.java")
public class IntFloatScatterMap
extends IntFloatHashMap

Same as IntFloatHashMap 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 com.carrotsearch.hppc.IntFloatHashMap

IntFloatHashMap.KeysContainer

Field Summary

Fields inherited from class com.carrotsearch.hppc.IntFloatHashMap

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

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class com.carrotsearch.hppc.IntFloatHashMap

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 java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

IntFloatScatterMap

public IntFloatScatterMap()

New instance with sane defaults.

IntFloatScatterMap

public IntFloatScatterMap(int expectedElements)

New instance with sane defaults.

IntFloatScatterMap

public IntFloatScatterMap(int expectedElements,
                          double loadFactor)

New instance with sane defaults.

Method Detail

hashKey

protected int hashKey(int key)

Description copied from class: IntFloatHashMap

Returns a hash code for the given key.

The default implementation mixes the hash of the key with IntFloatHashMap.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 IntFloatHashMap

from

public static IntFloatScatterMap from(int[] keys,
                                      float[] values)

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