com.carrotsearch.hppc

Class IntCharScatterMap

java.lang.Object

com.carrotsearch.hppc.IntCharHashMap

com.carrotsearch.hppc.IntCharScatterMap

All Implemented Interfaces:

IntCharAssociativeContainer, IntCharMap, Preallocable, java.lang.Cloneable, java.lang.Iterable<IntCharCursor>

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

Same as IntCharHashMap 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.IntCharHashMap

IntCharHashMap.KeysContainer

Field Summary

Fields inherited from class com.carrotsearch.hppc.IntCharHashMap

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
static IntCharScatterMap	from(int[] keys, char[] 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.IntCharHashMap

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

IntCharScatterMap

public IntCharScatterMap()

New instance with sane defaults.

IntCharScatterMap

public IntCharScatterMap(int expectedElements)

New instance with sane defaults.

IntCharScatterMap

public IntCharScatterMap(int expectedElements,
                         double loadFactor)

New instance with sane defaults.

Method Detail

hashKey

protected int hashKey(int key)

Description copied from class: IntCharHashMap

Returns a hash code for the given key.

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

from

public static IntCharScatterMap from(int[] keys,
                                     char[] values)

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