Class ReferenceSortedSets

java.lang.Object
it.unimi.dsi.fastutil.objects.ReferenceSortedSets

public final class ReferenceSortedSets
extends java.lang.Object
A class providing static methods and objects that do useful things with type-specific sorted sets.
See Also:
Collections
  • Field Details

  • Method Details

    • emptySet

      public static <K> ReferenceSet<K> emptySet()
      Returns an empty sorted set (immutable). It is serializable and cloneable.

      This method provides a typesafe access to EMPTY_SET.

      Returns:
      an empty sorted set (immutable).
    • singleton

      public static <K> ReferenceSortedSet<K> singleton​(K element)
      Returns a type-specific immutable sorted set containing only the specified element. The returned sorted set is serializable and cloneable.
      Parameters:
      element - the only element of the returned sorted set.
      Returns:
      a type-specific immutable sorted set containing just element.
    • singleton

      public static <K> ReferenceSortedSet<K> singleton​(K element, java.util.Comparator<? super K> comparator)
      Returns a type-specific immutable sorted set containing only the specified element, and using a specified comparator. The returned sorted set is serializable and cloneable.
      Parameters:
      element - the only element of the returned sorted set.
      comparator - the comparator to use in the returned sorted set.
      Returns:
      a type-specific immutable sorted set containing just element.
    • synchronize

      public static <K> ReferenceSortedSet<K> synchronize​(ReferenceSortedSet<K> s)
      Returns a synchronized type-specific sorted set backed by the given type-specific sorted set.
      Parameters:
      s - the sorted set to be wrapped in a synchronized sorted set.
      Returns:
      a synchronized view of the specified sorted set.
      See Also:
      Collections.synchronizedSortedSet(SortedSet)
    • synchronize

      public static <K> ReferenceSortedSet<K> synchronize​(ReferenceSortedSet<K> s, java.lang.Object sync)
      Returns a synchronized type-specific sorted set backed by the given type-specific sorted set, using an assigned object to synchronize.
      Parameters:
      s - the sorted set to be wrapped in a synchronized sorted set.
      sync - an object that will be used to synchronize the access to the sorted set.
      Returns:
      a synchronized view of the specified sorted set.
      See Also:
      Collections.synchronizedSortedSet(SortedSet)
    • unmodifiable

      public static <K> ReferenceSortedSet<K> unmodifiable​(ReferenceSortedSet<K> s)
      Returns an unmodifiable type-specific sorted set backed by the given type-specific sorted set.
      Parameters:
      s - the sorted set to be wrapped in an unmodifiable sorted set.
      Returns:
      an unmodifiable view of the specified sorted set.
      See Also:
      Collections.unmodifiableSortedSet(SortedSet)