DoubleIntScatterMap

java.lang.Object
- com.carrotsearch.hppc.DoubleIntHashMap
- - com.carrotsearch.hppc.DoubleIntScatterMap

All Implemented Interfaces:

DoubleIntAssociativeContainer, DoubleIntMap, Preallocable, java.lang.Cloneable, java.lang.Iterable<DoubleIntCursor>
```
@Generated(date="2024-05-16T12:00:00+0000",
           value="KTypeVTypeScatterMap.java")
public class DoubleIntScatterMap
extends DoubleIntHashMap
```
Same as DoubleIntHashMap 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.DoubleIntHashMap
  DoubleIntHashMap.KeysContainer

Field Summary
- Fields inherited from class com.carrotsearch.hppc.DoubleIntHashMap
  assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values

Constructor Summary

Constructors
Constructor	Description
`DoubleIntScatterMap()`	New instance with sane defaults.
`DoubleIntScatterMap(int expectedElements)`	New instance with sane defaults.
`DoubleIntScatterMap(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 DoubleIntScatterMap`	`from(double[] keys, int[] 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.DoubleIntHashMap
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 Detail
  - DoubleIntScatterMap
```
public DoubleIntScatterMap()
```
    New instance with sane defaults.
  - DoubleIntScatterMap
```
public DoubleIntScatterMap(int expectedElements)
```
    New instance with sane defaults.
  - DoubleIntScatterMap
```
public DoubleIntScatterMap(int expectedElements,
                           double loadFactor)
```
    New instance with sane defaults.
- Method Detail
  - hashKey
```
protected int hashKey(double key)
```
    Description copied from class: DoubleIntHashMap
    
    Returns a hash code for the given key.
    The default implementation mixes the hash of the key with DoubleIntHashMap.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 class DoubleIntHashMap
  - from
```
public static DoubleIntScatterMap from(double[] keys,
                                       int[] values)
```
    Creates a hash map from two index-aligned arrays of key-value pairs.