Class 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 Detail

    • Method Detail

      • 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)