Package com.carrotsearch.hppc
Class ByteIntScatterMap
java.lang.Object
com.carrotsearch.hppc.ByteIntHashMap
com.carrotsearch.hppc.ByteIntScatterMap
- All Implemented Interfaces:
ByteIntAssociativeContainer
,ByteIntMap
,Preallocable
,Cloneable
,Iterable<ByteIntCursor>
@Generated(date="2023-10-26T04:33:09+0000",
value="KTypeVTypeScatterMap.java")
public class ByteIntScatterMap
extends ByteIntHashMap
Same as
ByteIntHashMap
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.ByteIntHashMap
ByteIntHashMap.KeysContainer
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Field Summary
Fields inherited from class com.carrotsearch.hppc.ByteIntHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
ConstructorsConstructorDescriptionNew instance with sane defaults.ByteIntScatterMap
(int expectedElements) New instance with sane defaults.ByteIntScatterMap
(int expectedElements, double loadFactor) New instance with sane defaults. -
Method Summary
Modifier and TypeMethodDescriptionstatic ByteIntScatterMap
from
(byte[] keys, int[] values) Creates a hash map from two index-aligned arrays of key-value pairs.protected int
hashKey
(byte key) Returns a hash code for the given key.Methods inherited from class com.carrotsearch.hppc.ByteIntHashMap
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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ByteIntScatterMap
public ByteIntScatterMap()New instance with sane defaults. -
ByteIntScatterMap
public ByteIntScatterMap(int expectedElements) New instance with sane defaults. -
ByteIntScatterMap
public ByteIntScatterMap(int expectedElements, double loadFactor) New instance with sane defaults.
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Method Details
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hashKey
protected int hashKey(byte key) Description copied from class:ByteIntHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ByteIntHashMap.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 classByteIntHashMap
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from
Creates a hash map from two index-aligned arrays of key-value pairs.
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