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