Package com.carrotsearch.hppc
Class ByteLongScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.ByteLongHashMap
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- com.carrotsearch.hppc.ByteLongScatterMap
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- All Implemented Interfaces:
ByteLongAssociativeContainer,ByteLongMap,Preallocable,java.lang.Cloneable,java.lang.Iterable<ByteLongCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class ByteLongScatterMap extends ByteLongHashMapSame asByteLongHashMapbut 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.ByteLongHashMap
ByteLongHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.ByteLongHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description ByteLongScatterMap()New instance with sane defaults.ByteLongScatterMap(int expectedElements)New instance with sane defaults.ByteLongScatterMap(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 ByteLongScatterMapfrom(byte[] keys, long[] values)Creates a hash map from two index-aligned arrays of key-value pairs.protected inthashKey(byte key)Returns a hash code for the given key.-
Methods inherited from class com.carrotsearch.hppc.ByteLongHashMap
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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ByteLongScatterMap
public ByteLongScatterMap()
New instance with sane defaults.
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ByteLongScatterMap
public ByteLongScatterMap(int expectedElements)
New instance with sane defaults.
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ByteLongScatterMap
public ByteLongScatterMap(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:ByteLongHashMapReturns a hash code for the given key.The default implementation mixes the hash of the key with
ByteLongHashMap.keyMixerto 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:
hashKeyin classByteLongHashMap
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from
public static ByteLongScatterMap from(byte[] keys, long[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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