Package com.carrotsearch.hppc
Class ShortDoubleScatterMap
java.lang.Object
com.carrotsearch.hppc.ShortDoubleHashMap
com.carrotsearch.hppc.ShortDoubleScatterMap
- All Implemented Interfaces:
Preallocable
,ShortDoubleAssociativeContainer
,ShortDoubleMap
,Cloneable
,Iterable<ShortDoubleCursor>
@Generated(date="2023-10-26T04:33:10+0000",
value="KTypeVTypeScatterMap.java")
public class ShortDoubleScatterMap
extends ShortDoubleHashMap
Same as
ShortDoubleHashMap
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.ShortDoubleHashMap
ShortDoubleHashMap.KeysContainer
-
Field Summary
Fields inherited from class com.carrotsearch.hppc.ShortDoubleHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
-
Constructor Summary
ConstructorsConstructorDescriptionNew instance with sane defaults.ShortDoubleScatterMap
(int expectedElements) New instance with sane defaults.ShortDoubleScatterMap
(int expectedElements, double loadFactor) New instance with sane defaults. -
Method Summary
Modifier and TypeMethodDescriptionstatic ShortDoubleScatterMap
from
(short[] keys, double[] values) Creates a hash map from two index-aligned arrays of key-value pairs.protected int
hashKey
(short key) Returns a hash code for the given key.Methods inherited from class com.carrotsearch.hppc.ShortDoubleHashMap
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
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface java.lang.Iterable
forEach, spliterator
-
Constructor Details
-
ShortDoubleScatterMap
public ShortDoubleScatterMap()New instance with sane defaults. -
ShortDoubleScatterMap
public ShortDoubleScatterMap(int expectedElements) New instance with sane defaults. -
ShortDoubleScatterMap
public ShortDoubleScatterMap(int expectedElements, double loadFactor) New instance with sane defaults.
-
-
Method Details
-
hashKey
protected int hashKey(short key) Description copied from class:ShortDoubleHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ShortDoubleHashMap.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 classShortDoubleHashMap
-
from
Creates a hash map from two index-aligned arrays of key-value pairs.
-