Package com.carrotsearch.hppc
Class ShortIntScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.ShortIntHashMap
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- com.carrotsearch.hppc.ShortIntScatterMap
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- All Implemented Interfaces:
Preallocable
,ShortIntAssociativeContainer
,ShortIntMap
,java.lang.Cloneable
,java.lang.Iterable<ShortIntCursor>
@Generated(date="2021-05-28T03:45:42+0000", value="KTypeVTypeScatterMap.java") public class ShortIntScatterMap extends ShortIntHashMap
Same asShortIntHashMap
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.ShortIntHashMap
ShortIntHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.ShortIntHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description ShortIntScatterMap()
New instance with sane defaults.ShortIntScatterMap(int expectedElements)
New instance with sane defaults.ShortIntScatterMap(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 ShortIntScatterMap
from(short[] keys, int[] 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.ShortIntHashMap
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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ShortIntScatterMap
public ShortIntScatterMap()
New instance with sane defaults.
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ShortIntScatterMap
public ShortIntScatterMap(int expectedElements)
New instance with sane defaults.
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ShortIntScatterMap
public ShortIntScatterMap(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:ShortIntHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ShortIntHashMap.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 classShortIntHashMap
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from
public static ShortIntScatterMap from(short[] keys, int[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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