Package it.unimi.dsi.fastutil.objects

Class ObjectSets.Singleton<K>

  • All Implemented Interfaces:
    ObjectCollection<K>, ObjectIterable<K>, ObjectSet<K>, java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<K>, java.util.Collection<K>, java.util.Set<K>
    Direct Known Subclasses:
    ObjectSortedSets.Singleton
    Enclosing class:
    ObjectSets
    public static class ObjectSets.Singleton<K>
extends AbstractObjectSet<K>
implements java.io.Serializable, java.lang.Cloneable
    An immutable class representing a type-specific singleton set.

    This class may be useful to implement your own in case you subclass a type-specific set.

    See Also:
    Serialized Form

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean addAll​(java.util.Collection<? extends K> c)  
      java.lang.Object clone()  
      boolean contains​(java.lang.Object k)  
      void forEach​(java.util.function.Consumer<? super K> action)  
      ObjectListIterator<K> iterator()
      Returns a type-specific iterator on the elements of this collection.
      boolean remove​(java.lang.Object k)  
      boolean removeAll​(java.util.Collection<?> c)  
      boolean removeIf​(java.util.function.Predicate<? super K> filter)  
      boolean retainAll​(java.util.Collection<?> c)  
      int size()  
      ObjectSpliterator<K> spliterator()
      Returns a type-specific spliterator on the elements of this set.
      java.lang.Object[] toArray()  

      • Methods inherited from class java.util.AbstractCollection

        add, clear, containsAll, isEmpty, toArray

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface java.util.Collection

        parallelStream, stream, toArray

      • Methods inherited from interface java.util.Set

        add, clear, containsAll, isEmpty, toArray

    • Method Detail

      • contains

        public boolean contains​(java.lang.Object k)
        Specified by:
        contains in interface java.util.Collection<K>
        Specified by:
        contains in interface java.util.Set<K>
        Overrides:
        contains in class java.util.AbstractCollection<K>

      • remove

        public boolean remove​(java.lang.Object k)
        Specified by:
        remove in interface java.util.Collection<K>
        Specified by:
        remove in interface java.util.Set<K>
        Overrides:
        remove in class java.util.AbstractCollection<K>

      • iterator

        public ObjectListIterator<K> iterator()
        Description copied from interface: ObjectCollection
        Returns a type-specific iterator on the elements of this collection.
        Specified by:
        iterator in interface java.util.Collection<K>
        Specified by:
        iterator in interface java.lang.Iterable<K>
        Specified by:
        iterator in interface ObjectCollection<K>
        Specified by:
        iterator in interface ObjectIterable<K>
        Specified by:
        iterator in interface ObjectSet<K>
        Specified by:
        iterator in interface java.util.Set<K>
        Specified by:
        iterator in class AbstractObjectSet<K>
        Returns:
        a type-specific iterator on the elements of this collection.
        See Also:
        Iterable.iterator()

      • spliterator

        public ObjectSpliterator<K> spliterator()
        Description copied from interface: ObjectSet
        Returns a type-specific spliterator on the elements of this set.

        Set spliterators must report at least Spliterator.DISTINCT.

        See Set.spliterator() for more documentation on the requirements of the returned spliterator.

        Specified by:
        spliterator in interface java.util.Collection<K>
        Specified by:
        spliterator in interface java.lang.Iterable<K>
        Specified by:
        spliterator in interface ObjectCollection<K>
        Specified by:
        spliterator in interface ObjectIterable<K>
        Specified by:
        spliterator in interface ObjectSet<K>
        Specified by:
        spliterator in interface java.util.Set<K>
        Returns:
        a type-specific spliterator on the elements of this collection.

      • size

        public int size()
        Specified by:
        size in interface java.util.Collection<K>
        Specified by:
        size in interface java.util.Set<K>
        Specified by:
        size in class java.util.AbstractCollection<K>

      • toArray

        public java.lang.Object[] toArray()
        Specified by:
        toArray in interface java.util.Collection<K>
        Specified by:
        toArray in interface java.util.Set<K>
        Overrides:
        toArray in class java.util.AbstractCollection<K>

      • forEach

        public void forEach​(java.util.function.Consumer<? super K> action)
        Specified by:
        forEach in interface java.lang.Iterable<K>

      • addAll

        public boolean addAll​(java.util.Collection<? extends K> c)
        Specified by:
        addAll in interface java.util.Collection<K>
        Specified by:
        addAll in interface java.util.Set<K>
        Overrides:
        addAll in class java.util.AbstractCollection<K>

      • removeAll

        public boolean removeAll​(java.util.Collection<?> c)
        Specified by:
        removeAll in interface java.util.Collection<K>
        Specified by:
        removeAll in interface java.util.Set<K>
        Overrides:
        removeAll in class java.util.AbstractCollection<K>

      • retainAll

        public boolean retainAll​(java.util.Collection<?> c)
        Specified by:
        retainAll in interface java.util.Collection<K>
        Specified by:
        retainAll in interface java.util.Set<K>
        Overrides:
        retainAll in class java.util.AbstractCollection<K>

      • removeIf

        public boolean removeIf​(java.util.function.Predicate<? super K> filter)
        Specified by:
        removeIf in interface java.util.Collection<K>

      • clone

        public java.lang.Object clone()