Package com.carrotsearch.hppc
Class ShortByteScatterMap
java.lang.Object
com.carrotsearch.hppc.ShortByteHashMap
com.carrotsearch.hppc.ShortByteScatterMap
- All Implemented Interfaces:
Preallocable
,ShortByteAssociativeContainer
,ShortByteMap
,Cloneable
,Iterable<ShortByteCursor>
@Generated(date="2024-02-21T10:44:44+0000",
value="KTypeVTypeScatterMap.java")
public class ShortByteScatterMap
extends ShortByteHashMap
Same as
ShortByteHashMap
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.ShortByteHashMap
ShortByteHashMap.KeysContainer
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Field Summary
Fields inherited from class com.carrotsearch.hppc.ShortByteHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
ConstructorsConstructorDescriptionNew instance with sane defaults.ShortByteScatterMap
(int expectedElements) New instance with sane defaults.ShortByteScatterMap
(int expectedElements, double loadFactor) New instance with sane defaults. -
Method Summary
Modifier and TypeMethodDescriptionstatic ShortByteScatterMap
from
(short[] keys, byte[] 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.ShortByteHashMap
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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ShortByteScatterMap
public ShortByteScatterMap()New instance with sane defaults. -
ShortByteScatterMap
public ShortByteScatterMap(int expectedElements) New instance with sane defaults. -
ShortByteScatterMap
public ShortByteScatterMap(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:ShortByteHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ShortByteHashMap.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 classShortByteHashMap
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from
Creates a hash map from two index-aligned arrays of key-value pairs.
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