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