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