Class CharLongScatterMap

java.lang.Object

com.carrotsearch.hppc.CharLongHashMap

com.carrotsearch.hppc.CharLongScatterMap

All Implemented Interfaces:

CharLongAssociativeContainer, CharLongMap, Preallocable, Cloneable, Iterable<CharLongCursor>

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

Same as CharLongHashMap 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 CharLongHashMap

CharLongHashMap.KeysContainer

Field Summary

Fields inherited from class CharLongHashMap

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

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class CharLongHashMap

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

CharLongScatterMap

public CharLongScatterMap()

New instance with sane defaults.

CharLongScatterMap

public CharLongScatterMap(int expectedElements)

New instance with sane defaults.

CharLongScatterMap

public CharLongScatterMap(int expectedElements,
 double loadFactor)

New instance with sane defaults.

Method Details

hashKey

protected int hashKey(char key)

Description copied from class: CharLongHashMap

Returns a hash code for the given key.

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

from

public static CharLongScatterMap from(char[] keys,
 long[] values)

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