com.carrotsearch.hppc

Class ShortScatterSet

java.lang.Object

com.carrotsearch.hppc.AbstractShortCollection

com.carrotsearch.hppc.ShortHashSet

com.carrotsearch.hppc.ShortScatterSet

All Implemented Interfaces:

Preallocable, ShortCollection, ShortContainer, ShortLookupContainer, ShortSet, java.lang.Cloneable, java.lang.Iterable<ShortCursor>

@Generated(date="2023-04-24T17:14:46+0800",
           value="KTypeScatterSet.java")
public class ShortScatterSet
extends ShortHashSet

Same as ShortHashSet 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.

See Also:

ShortHashSet, HPPC interfaces diagram

Nested Class Summary

Nested classes/interfaces inherited from class com.carrotsearch.hppc.ShortHashSet

ShortHashSet.EntryIterator

Field Summary

Fields inherited from class com.carrotsearch.hppc.ShortHashSet

assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt

Constructor Summary

Constructors

Constructor and Description
ShortScatterSet() New instance with sane defaults.
ShortScatterSet(int expectedElements) New instance with sane defaults.
ShortScatterSet(int expectedElements, double loadFactor) New instance with sane defaults.

Method Summary

Modifier and Type	Method and Description
static ShortScatterSet	from(short... elements) Create a set from a variable number of arguments or an array of short.
protected int	hashKey(short key) Returns a hash code for the given key.

Methods inherited from class com.carrotsearch.hppc.ShortHashSet

add, addAll, addAll, addAll, allocateBuffers, allocateThenInsertThenRehash, clear, clone, contains, ensureCapacity, equals, forEach, forEach, hashCode, indexExists, indexGet, indexInsert, indexOf, indexReplace, isEmpty, iterator, rehash, release, remove, removeAll, removeAll, shiftConflictingKeys, size, toArray, verifyLoadFactor, visualizeKeyDistribution

Methods inherited from class com.carrotsearch.hppc.AbstractShortCollection

removeAll, retainAll, retainAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.carrotsearch.hppc.ShortCollection

removeAll, retainAll, retainAll

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

ShortScatterSet

public ShortScatterSet()

New instance with sane defaults.

ShortScatterSet

public ShortScatterSet(int expectedElements)

New instance with sane defaults.

ShortScatterSet

public ShortScatterSet(int expectedElements,
                       double loadFactor)

New instance with sane defaults.

Method Detail

hashKey

protected int hashKey(short key)

Description copied from class: ShortHashSet

Returns a hash code for the given key. The default implementation mixes the hash of the key with ShortHashSet.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 ShortHashSet

from

public static ShortScatterSet from(short... elements)

Create a set from a variable number of arguments or an array of short. The elements are copied from the argument to the internal buffer.