Class AbstractReferenceSet<K>

java.lang.Object

java.util.AbstractCollection<K>

it.unimi.dsi.fastutil.objects.AbstractReferenceCollection<K>

it.unimi.dsi.fastutil.objects.AbstractReferenceSet<K>

All Implemented Interfaces:

ObjectIterable<K>, ReferenceCollection<K>, ReferenceSet<K>, Cloneable, Iterable<K>, Collection<K>, Set<K>

Direct Known Subclasses:

AbstractReferenceSortedSet, ReferenceArraySet, ReferenceOpenHashBigSet, ReferenceOpenHashSet, ReferenceSets.Singleton

public abstract class AbstractReferenceSet<K>
extends AbstractReferenceCollection<K>
implements Cloneable, ReferenceSet<K>

An abstract class providing basic methods for sets implementing a type-specific interface.

Note that the type-specific Set interface adds a type-specific remove() method, as it is no longer harmful for subclasses. Thus, concrete subclasses of this class must implement remove() (the rem() implementation of this class just delegates to remove()).

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
int	hashCode()	Returns a hash code for this set.
abstract ObjectIterator<K>	iterator()	Returns a type-specific iterator on the elements of this collection.

Methods inherited from class AbstractReferenceCollection

toString

Methods inherited from class AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, size, toArray, toArray

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Collection

parallelStream, removeIf, stream, toArray

Methods inherited from interface Iterable

forEach

Methods inherited from interface ReferenceSet

spliterator

Methods inherited from interface Set

add, addAll, clear, contains, containsAll, isEmpty, remove, removeAll, retainAll, size, toArray, toArray

Method Details

iterator

public abstract ObjectIterator<K> iterator()

Description copied from interface: ReferenceCollection

Returns a type-specific iterator on the elements of this collection.

Specified by:

iterator in interface Collection<K>

Specified by:

iterator in interface Iterable<K>

Specified by:

iterator in interface ObjectIterable<K>

Specified by:

iterator in interface ReferenceCollection<K>

Specified by:

iterator in interface ReferenceSet<K>

Specified by:

iterator in interface Set<K>

Specified by:

iterator in class AbstractReferenceCollection<K>

Returns:

a type-specific iterator on the elements of this collection.

See Also:

• Iterable.iterator()

equals

public boolean equals(Object o)

Specified by:

equals in interface Collection<K>

Specified by:

equals in interface Set<K>

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns a hash code for this set. The hash code of a set is computed by summing the hash codes of its elements.

Specified by:

hashCode in interface Collection<K>

Specified by:

hashCode in interface Set<K>

Overrides:

hashCode in class Object

Returns:

a hash code for this set.