com.carrotsearch.hppc

Class ObjectIdentityHashSet<KType>

java.lang.Object

com.carrotsearch.hppc.ObjectHashSet<KType>

com.carrotsearch.hppc.ObjectIdentityHashSet<KType>

All Implemented Interfaces:

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

public class ObjectIdentityHashSet<KType>
extends ObjectHashSet<KType>

A reference-equality (identity) hash set.

Field Summary

Fields inherited from class com.carrotsearch.hppc.ObjectHashSet

keys

Constructor Summary

Constructors

Constructor and Description
ObjectIdentityHashSet() New instance with sane defaults.
ObjectIdentityHashSet(int expectedElements) New instance with sane defaults.
ObjectIdentityHashSet(int expectedElements, double loadFactor) New instance with sane defaults.
ObjectIdentityHashSet(int expectedElements, double loadFactor, HashOrderMixingStrategy orderMixer) New instance with the provided defaults.
ObjectIdentityHashSet(ObjectContainer<? extends KType> container) New instance copying elements from another ObjectContainer.

Method Summary

Modifier and Type	Method and Description
static <KType> ObjectIdentityHashSet<KType>	from(KType... elements) Create a set from a variable number of arguments or an array of KType.
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, clear, clone, contains, ensureCapacity, equals, forEach, forEach, hashCode, indexExists, indexGet, indexInsert, indexOf, indexReplace, isEmpty, iterator, release, remove, removeAll, removeAll, size, toArray, visualizeKeyDistribution

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

ObjectIdentityHashSet

public ObjectIdentityHashSet()

New instance with sane defaults.

ObjectIdentityHashSet

public ObjectIdentityHashSet(int expectedElements)

New instance with sane defaults.

ObjectIdentityHashSet

public ObjectIdentityHashSet(int expectedElements,
                             double loadFactor)

New instance with sane defaults.

ObjectIdentityHashSet

public ObjectIdentityHashSet(int expectedElements,
                             double loadFactor,
                             HashOrderMixingStrategy orderMixer)

New instance with the provided defaults.

Parameters:

expectedElements - The expected number of elements guaranteed not to cause a rehash (inclusive).

loadFactor - The load factor for internal buffers. Insane load factors (zero, full capacity) are rejected by ObjectHashSet.verifyLoadFactor(double).

orderMixer - Hash key order mixing strategy. See HashOrderMixing for predefined implementations. Use constant mixers only if you understand the potential consequences.

ObjectIdentityHashSet

public ObjectIdentityHashSet(ObjectContainer<? extends KType> container)

New instance copying elements from another ObjectContainer.

Method Detail

from

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

Create a set from a variable number of arguments or an array of KType. 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