Package com.carrotsearch.hppc
Class IntByteScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.IntByteHashMap
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- com.carrotsearch.hppc.IntByteScatterMap
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- All Implemented Interfaces:
IntByteAssociativeContainer
,IntByteMap
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<IntByteCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class IntByteScatterMap extends IntByteHashMap
Same asIntByteHashMap
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.IntByteHashMap
IntByteHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.IntByteHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description IntByteScatterMap()
New instance with sane defaults.IntByteScatterMap(int expectedElements)
New instance with sane defaults.IntByteScatterMap(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 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
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Constructor Detail
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IntByteScatterMap
public IntByteScatterMap()
New instance with sane defaults.
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IntByteScatterMap
public IntByteScatterMap(int expectedElements)
New instance with sane defaults.
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IntByteScatterMap
public IntByteScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Detail
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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
public static IntByteScatterMap from(int[] keys, byte[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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