Package com.carrotsearch.hppc
Class ByteIntScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.ByteIntHashMap
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- com.carrotsearch.hppc.ByteIntScatterMap
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- All Implemented Interfaces:
ByteIntAssociativeContainer
,ByteIntMap
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<ByteIntCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class ByteIntScatterMap extends ByteIntHashMap
Same asByteIntHashMap
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
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Nested classes/interfaces inherited from class com.carrotsearch.hppc.ByteIntHashMap
ByteIntHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.ByteIntHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description ByteIntScatterMap()
New instance with sane defaults.ByteIntScatterMap(int expectedElements)
New instance with sane defaults.ByteIntScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static 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
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Constructor Detail
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ByteIntScatterMap
public ByteIntScatterMap()
New instance with sane defaults.
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ByteIntScatterMap
public ByteIntScatterMap(int expectedElements)
New instance with sane defaults.
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ByteIntScatterMap
public ByteIntScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Detail
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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
public static ByteIntScatterMap from(byte[] keys, int[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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