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