Package it.unimi.dsi.fastutil.objects

Interface ReferenceSortedSet<K>

All Superinterfaces:
Collection<K>, Iterable<K>, ObjectBidirectionalIterable<K>, ObjectIterable<K>, ReferenceCollection<K>, ReferenceSet<K>, Set<K>, SortedSet<K>
All Known Implementing Classes:
AbstractReferenceSortedSet, ReferenceLinkedOpenHashSet, ReferenceSortedSets.EmptySet, ReferenceSortedSets.Singleton, ReferenceSortedSets.SynchronizedSortedSet, ReferenceSortedSets.UnmodifiableSortedSet
public interface ReferenceSortedSet<K>
extends ReferenceSet<K>, SortedSet<K>, ObjectBidirectionalIterable<K>
A type-specific SortedSet; provides some additional methods that use polymorphism to avoid (un)boxing.

Additionally, this interface strengthens iterator(), SortedSet.comparator() (for primitive types), SortedSet.subSet(Object,Object), SortedSet.headSet(Object) and SortedSet.tailSet(Object).

See Also:
SortedSet

  • Method Details

    • iterator

      ObjectBidirectionalIterator<K> iterator​(K fromElement)
      Returns a type-specific BidirectionalIterator on the elements in this set, starting from a given element of the domain (optional operation).

      This method returns a type-specific bidirectional iterator with given starting point. The starting point is any element comparable to the elements of this set (even if it does not actually belong to the set). The next element of the returned iterator is the least element of the set that is greater than the starting point (if there are no elements greater than the starting point, hasNext() will return false). The previous element of the returned iterator is the greatest element of the set that is smaller than or equal to the starting point (if there are no elements smaller than or equal to the starting point, hasPrevious() will return false).

      Note that passing the last element of the set as starting point and calling previous() you can traverse the entire set in reverse order.

      Parameters:
      fromElement - an element to start from.
      Returns:
      a bidirectional iterator on the element in this set, starting at the given element.
      Throws:
      UnsupportedOperationException - if this set does not support iterators with a starting point.

    • iterator

      ObjectBidirectionalIterator<K> iterator()
      Returns a type-specific BidirectionalIterator on the elements in this set.

      Note that this specification strengthens the one given in the corresponding type-specific Collection.

      This method returns a parameterised bidirectional iterator. The iterator can be moreover safely cast to a type-specific iterator.

      Specified by:
      iterator in interface Collection<K>
      Specified by:
      iterator in interface Iterable<K>
      Specified by:
      iterator in interface ObjectBidirectionalIterable<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>
      Returns:
      a bidirectional iterator on the element in this set.
      See Also:
      Iterable.iterator()

    • subSet

      ReferenceSortedSet<K> subSet​(K fromElement, K toElement)
      Returns a view of the portion of this sorted set whose elements range from fromElement, inclusive, to toElement, exclusive.

      Note that this specification strengthens the one given in SortedSet.subSet(Object,Object).

      Specified by:
      subSet in interface SortedSet<K>
      See Also:
      SortedSet.subSet(Object,Object)

    • headSet

      ReferenceSortedSet<K> headSet​(K toElement)
      Returns a view of the portion of this sorted set whose elements are strictly less than toElement.

      Note that this specification strengthens the one given in SortedSet.headSet(Object).

      Specified by:
      headSet in interface SortedSet<K>
      See Also:
      SortedSet.headSet(Object)

    • tailSet

      ReferenceSortedSet<K> tailSet​(K fromElement)
      Returns a view of the portion of this sorted set whose elements are greater than or equal to fromElement.

      Note that this specification strengthens the one given in SortedSet.headSet(Object).

      Specified by:
      tailSet in interface SortedSet<K>
      See Also:
      SortedSet.tailSet(Object)