Package com.carrotsearch.hppc
Class ShortShortScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.ShortShortHashMap
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- com.carrotsearch.hppc.ShortShortScatterMap
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- All Implemented Interfaces:
Preallocable
,ShortShortAssociativeContainer
,ShortShortMap
,java.lang.Cloneable
,java.lang.Iterable<ShortShortCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class ShortShortScatterMap extends ShortShortHashMap
Same asShortShortHashMap
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.ShortShortHashMap
ShortShortHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.ShortShortHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description ShortShortScatterMap()
New instance with sane defaults.ShortShortScatterMap(int expectedElements)
New instance with sane defaults.ShortShortScatterMap(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 ShortShortScatterMap
from(short[] keys, short[] 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.ShortShortHashMap
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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ShortShortScatterMap
public ShortShortScatterMap()
New instance with sane defaults.
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ShortShortScatterMap
public ShortShortScatterMap(int expectedElements)
New instance with sane defaults.
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ShortShortScatterMap
public ShortShortScatterMap(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:ShortShortHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ShortShortHashMap.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 classShortShortHashMap
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from
public static ShortShortScatterMap from(short[] keys, short[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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