Package com.carrotsearch.hppc
Class LongByteScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.LongByteHashMap
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- com.carrotsearch.hppc.LongByteScatterMap
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- All Implemented Interfaces:
LongByteAssociativeContainer
,LongByteMap
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<LongByteCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class LongByteScatterMap extends LongByteHashMap
Same asLongByteHashMap
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.LongByteHashMap
LongByteHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.LongByteHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description LongByteScatterMap()
New instance with sane defaults.LongByteScatterMap(int expectedElements)
New instance with sane defaults.LongByteScatterMap(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 LongByteScatterMap
from(long[] keys, byte[] 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.LongByteHashMap
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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LongByteScatterMap
public LongByteScatterMap()
New instance with sane defaults.
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LongByteScatterMap
public LongByteScatterMap(int expectedElements)
New instance with sane defaults.
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LongByteScatterMap
public LongByteScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Detail
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hashKey
protected int hashKey(long key)
Description copied from class:LongByteHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
LongByteHashMap.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 classLongByteHashMap
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from
public static LongByteScatterMap from(long[] keys, byte[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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