com.carrotsearch.hppc

Class FloatLongScatterMap

java.lang.Object

com.carrotsearch.hppc.FloatLongHashMap

com.carrotsearch.hppc.FloatLongScatterMap

All Implemented Interfaces:

FloatLongAssociativeContainer, FloatLongMap, Preallocable, java.lang.Cloneable, java.lang.Iterable<FloatLongCursor>

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

Same as FloatLongHashMap 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.FloatLongHashMap

FloatLongHashMap.KeysContainer

Field Summary

Fields inherited from class com.carrotsearch.hppc.FloatLongHashMap

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

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class com.carrotsearch.hppc.FloatLongHashMap

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

FloatLongScatterMap

public FloatLongScatterMap()

New instance with sane defaults.

FloatLongScatterMap

public FloatLongScatterMap(int expectedElements)

New instance with sane defaults.

FloatLongScatterMap

public FloatLongScatterMap(int expectedElements,
                           double loadFactor)

New instance with sane defaults.

Method Detail

hashKey

protected int hashKey(float key)

Description copied from class: FloatLongHashMap

Returns a hash code for the given key.

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

from

public static FloatLongScatterMap from(float[] keys,
                                       long[] values)

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