Package com.carrotsearch.hppc
Class IntByteScatterMap
java.lang.Object
com.carrotsearch.hppc.IntByteHashMap
com.carrotsearch.hppc.IntByteScatterMap
- All Implemented Interfaces:
IntByteAssociativeContainer
,IntByteMap
,Preallocable
,Cloneable
,Iterable<IntByteCursor>
@Generated(date="2024-02-21T00:00:00+0000",
value="KTypeVTypeScatterMap.java")
public class IntByteScatterMap
extends IntByteHashMap
Same as
IntByteHashMap
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.IntByteHashMap
IntByteHashMap.KeysContainer
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Field Summary
Fields inherited from class com.carrotsearch.hppc.IntByteHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
ConstructorsConstructorDescriptionNew instance with sane defaults.IntByteScatterMap
(int expectedElements) New instance with sane defaults.IntByteScatterMap
(int expectedElements, double loadFactor) New instance with sane defaults. -
Method Summary
Modifier and TypeMethodDescriptionstatic IntByteScatterMap
from
(int[] keys, byte[] 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.IntByteHashMap
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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IntByteScatterMap
public IntByteScatterMap()New instance with sane defaults. -
IntByteScatterMap
public IntByteScatterMap(int expectedElements) New instance with sane defaults. -
IntByteScatterMap
public IntByteScatterMap(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:IntByteHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
IntByteHashMap.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 classIntByteHashMap
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from
Creates a hash map from two index-aligned arrays of key-value pairs.
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