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