Package com.carrotsearch.hppc
Class ShortCharScatterMap
java.lang.Object
com.carrotsearch.hppc.ShortCharHashMap
com.carrotsearch.hppc.ShortCharScatterMap
- All Implemented Interfaces:
Preallocable
,ShortCharAssociativeContainer
,ShortCharMap
,Cloneable
,Iterable<ShortCharCursor>
@Generated(date="2024-02-21T00:00:00+0000",
value="KTypeVTypeScatterMap.java")
public class ShortCharScatterMap
extends ShortCharHashMap
Same as
ShortCharHashMap
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.
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Nested Class Summary
Nested classes/interfaces inherited from class com.carrotsearch.hppc.ShortCharHashMap
ShortCharHashMap.KeysContainer
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Field Summary
Fields inherited from class com.carrotsearch.hppc.ShortCharHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
ConstructorsConstructorDescriptionNew instance with sane defaults.ShortCharScatterMap
(int expectedElements) New instance with sane defaults.ShortCharScatterMap
(int expectedElements, double loadFactor) New instance with sane defaults. -
Method Summary
Modifier and TypeMethodDescriptionstatic ShortCharScatterMap
from
(short[] keys, char[] 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 com.carrotsearch.hppc.ShortCharHashMap
addTo, allocateBuffers, allocateThenInsertThenRehash, clear, clone, containsKey, ensureCapacity, equalElements, equals, 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
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Constructor Details
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ShortCharScatterMap
public ShortCharScatterMap()New instance with sane defaults. -
ShortCharScatterMap
public ShortCharScatterMap(int expectedElements) New instance with sane defaults. -
ShortCharScatterMap
public ShortCharScatterMap(int expectedElements, double loadFactor) New instance with sane defaults.
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Method Details
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hashKey
protected int hashKey(short key) Description copied from class:ShortCharHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ShortCharHashMap.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 classShortCharHashMap
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from
Creates a hash map from two index-aligned arrays of key-value pairs.
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