Package com.carrotsearch.hppc
Class IntDoubleScatterMap
- java.lang.Object
-
- com.carrotsearch.hppc.IntDoubleHashMap
-
- com.carrotsearch.hppc.IntDoubleScatterMap
-
- All Implemented Interfaces:
IntDoubleAssociativeContainer
,IntDoubleMap
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<IntDoubleCursor>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeVTypeScatterMap.java") public class IntDoubleScatterMap extends IntDoubleHashMap
Same asIntDoubleHashMap
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.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class com.carrotsearch.hppc.IntDoubleHashMap
IntDoubleHashMap.KeysContainer
-
-
Field Summary
-
Fields inherited from class com.carrotsearch.hppc.IntDoubleHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
-
-
Constructor Summary
Constructors Constructor Description IntDoubleScatterMap()
New instance with sane defaults.IntDoubleScatterMap(int expectedElements)
New instance with sane defaults.IntDoubleScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static IntDoubleScatterMap
from(int[] keys, double[] 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.IntDoubleHashMap
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
-
-
-
-
Constructor Detail
-
IntDoubleScatterMap
public IntDoubleScatterMap()
New instance with sane defaults.
-
IntDoubleScatterMap
public IntDoubleScatterMap(int expectedElements)
New instance with sane defaults.
-
IntDoubleScatterMap
public IntDoubleScatterMap(int expectedElements, double loadFactor)
New instance with sane defaults.
-
-
Method Detail
-
hashKey
protected int hashKey(int key)
Description copied from class:IntDoubleHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
IntDoubleHashMap.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 classIntDoubleHashMap
-
from
public static IntDoubleScatterMap from(int[] keys, double[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
-
-