Package com.carrotsearch.hppc
Class DoubleFloatScatterMap
- java.lang.Object
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- com.carrotsearch.hppc.DoubleFloatHashMap
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- com.carrotsearch.hppc.DoubleFloatScatterMap
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- All Implemented Interfaces:
DoubleFloatAssociativeContainer
,DoubleFloatMap
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<DoubleFloatCursor>
@Generated(date="2021-05-28T03:45:42+0000", value="KTypeVTypeScatterMap.java") public class DoubleFloatScatterMap extends DoubleFloatHashMap
Same asDoubleFloatHashMap
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.DoubleFloatHashMap
DoubleFloatHashMap.KeysContainer
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.DoubleFloatHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
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Constructor Summary
Constructors Constructor Description DoubleFloatScatterMap()
New instance with sane defaults.DoubleFloatScatterMap(int expectedElements)
New instance with sane defaults.DoubleFloatScatterMap(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 DoubleFloatScatterMap
from(double[] keys, float[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.protected int
hashKey(double key)
Returns a hash code for the given key.-
Methods inherited from class com.carrotsearch.hppc.DoubleFloatHashMap
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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DoubleFloatScatterMap
public DoubleFloatScatterMap()
New instance with sane defaults.
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DoubleFloatScatterMap
public DoubleFloatScatterMap(int expectedElements)
New instance with sane defaults.
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DoubleFloatScatterMap
public DoubleFloatScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Detail
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hashKey
protected int hashKey(double key)
Description copied from class:DoubleFloatHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
DoubleFloatHashMap.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 classDoubleFloatHashMap
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from
public static DoubleFloatScatterMap from(double[] keys, float[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
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