Package com.carrotsearch.hppc
Class LongShortScatterMap
java.lang.Object
com.carrotsearch.hppc.LongShortHashMap
com.carrotsearch.hppc.LongShortScatterMap
- All Implemented Interfaces:
LongShortAssociativeContainer
,LongShortMap
,Preallocable
,Cloneable
,Iterable<LongShortCursor>
@Generated(date="2023-10-26T04:33:10+0000",
value="KTypeVTypeScatterMap.java")
public class LongShortScatterMap
extends LongShortHashMap
Same as
LongShortHashMap
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.LongShortHashMap
LongShortHashMap.KeysContainer
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Field Summary
Fields inherited from class com.carrotsearch.hppc.LongShortHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
ConstructorsConstructorDescriptionNew instance with sane defaults.LongShortScatterMap
(int expectedElements) New instance with sane defaults.LongShortScatterMap
(int expectedElements, double loadFactor) New instance with sane defaults. -
Method Summary
Modifier and TypeMethodDescriptionstatic LongShortScatterMap
from
(long[] keys, short[] values) Creates a hash map from two index-aligned arrays of key-value pairs.protected int
hashKey
(long key) Returns a hash code for the given key.Methods inherited from class com.carrotsearch.hppc.LongShortHashMap
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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LongShortScatterMap
public LongShortScatterMap()New instance with sane defaults. -
LongShortScatterMap
public LongShortScatterMap(int expectedElements) New instance with sane defaults. -
LongShortScatterMap
public LongShortScatterMap(int expectedElements, double loadFactor) New instance with sane defaults.
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Method Details
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hashKey
protected int hashKey(long key) Description copied from class:LongShortHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
LongShortHashMap.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 classLongShortHashMap
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from
Creates a hash map from two index-aligned arrays of key-value pairs.
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