com.carrotsearch.hppc

Class ObjectScatterSet<KType>

java.lang.Object

com.carrotsearch.hppc.ObjectHashSet<KType>

com.carrotsearch.hppc.ObjectScatterSet<KType>

All Implemented Interfaces:

ObjectCollection<KType>, ObjectContainer<KType>, ObjectLookupContainer<KType>, ObjectSet<KType>, Preallocable, java.lang.Cloneable, java.lang.Iterable<ObjectCursor<KType>>

@Generated(date="2017-10-22T12:19:54+0200",
           value="KTypeScatterSet.java")
public class ObjectScatterSet<KType>
extends ObjectHashSet<KType>

Same as ObjectHashSet 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:

ObjectHashSet, HPPC interfaces diagram

Nested Class Summary

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

ObjectHashSet.EntryIterator

Field Summary

Fields inherited from class com.carrotsearch.hppc.ObjectHashSet

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

Constructor Summary

Constructors

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

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	equals(java.lang.Object v1, java.lang.Object v2)
static <KType> ObjectScatterSet<KType>	from(KType... elements) Create a set from a variable number of arguments or an array of Object.
protected int	hashKey(KType key) Returns a hash code for the given key.
int	removeAll(ObjectLookupContainer<? super KType> c) Default implementation uses a predicate for removal.
int	retainAll(ObjectLookupContainer<? super KType> c) Default implementation uses a predicate for retaining.
int	retainAll(ObjectPredicate<? super KType> predicate) Default implementation redirects to ObjectCollection.removeAll(ObjectPredicate) and negates the predicate.
<T> T[]	toArray(java.lang.Class<T> componentClass) Copies all elements of this container to a dynamically created array of the given component type.
java.lang.String	toString() Convert the contents of this container to a human-friendly string.

Methods inherited from class com.carrotsearch.hppc.ObjectHashSet

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 java.lang.Object

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

Methods inherited from interface com.carrotsearch.hppc.ObjectCollection

removeAll, retainAll, retainAll

Methods inherited from interface com.carrotsearch.hppc.ObjectContainer

toArray

Constructor Detail

ObjectScatterSet

public ObjectScatterSet()

New instance with sane defaults.

ObjectScatterSet

public ObjectScatterSet(int expectedElements)

New instance with sane defaults.

ObjectScatterSet

public ObjectScatterSet(int expectedElements,
                double loadFactor)

New instance with sane defaults.

Method Detail

hashKey

protected int hashKey(KType key)

Description copied from class: ObjectHashSet

Returns a hash code for the given key. The default implementation mixes the hash of the key with ObjectHashSet.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 ObjectHashSet<KType>

from

@SafeVarargs
public static <KType> ObjectScatterSet<KType> from(KType... elements)

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

removeAll

public int removeAll(ObjectLookupContainer<? super KType> c)

Default implementation uses a predicate for removal.

Specified by:

removeAll in interface ObjectCollection<KType>

Returns:

Returns the number of removed elements.

retainAll

public int retainAll(ObjectLookupContainer<? super KType> c)

Default implementation uses a predicate for retaining.

Specified by:

retainAll in interface ObjectCollection<KType>

Returns:

Returns the number of removed elements.

retainAll

public int retainAll(ObjectPredicate<? super KType> predicate)

Default implementation redirects to ObjectCollection.removeAll(ObjectPredicate) and negates the predicate.

Specified by:

retainAll in interface ObjectCollection<KType>

Returns:

Returns the number of removed elements.

toArray

public <T> T[] toArray(java.lang.Class<T> componentClass)

Description copied from interface: ObjectContainer

Copies all elements of this container to a dynamically created array of the given component type.

Specified by:

toArray in interface ObjectContainer<KType>

toString

public java.lang.String toString()

Convert the contents of this container to a human-friendly string.

Overrides:

toString in class java.lang.Object

equals

protected boolean equals(java.lang.Object v1,
             java.lang.Object v2)