Package com.carrotsearch.hppc
Class ShortCharScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.ShortCharHashMap
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- com.carrotsearch.hppc.ShortCharScatterMap
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- All Implemented Interfaces:
Preallocable
,ShortCharAssociativeContainer
,ShortCharMap
,java.lang.Cloneable
,java.lang.Iterable<ShortCharCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class ShortCharScatterMap extends ShortCharHashMap
Same asShortCharHashMap
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
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Nested classes/interfaces inherited from class com.carrotsearch.hppc.ShortCharHashMap
ShortCharHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.ShortCharHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description ShortCharScatterMap()
New instance with sane defaults.ShortCharScatterMap(int expectedElements)
New instance with sane defaults.ShortCharScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static 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
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Constructor Detail
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ShortCharScatterMap
public ShortCharScatterMap()
New instance with sane defaults.
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ShortCharScatterMap
public ShortCharScatterMap(int expectedElements)
New instance with sane defaults.
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ShortCharScatterMap
public ShortCharScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Detail
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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
public static ShortCharScatterMap from(short[] keys, char[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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