Package it.unimi.dsi.fastutil.objects

Class ObjectSortedSets

java.lang.Object
it.unimi.dsi.fastutil.objects.ObjectSortedSets
public final class ObjectSortedSets
extends java.lang.Object
A class providing static methods and objects that do useful things with type-specific sorted sets.
See Also:
Collections

  • Nested Class Summary

    Nested Classes
    Modifier and Type Class Description
    static class  ObjectSortedSets.EmptySet<K>
    An immutable class representing the empty sorted set and implementing a type-specific set interface.
    static class  ObjectSortedSets.Singleton<K>
    A class representing a singleton sorted set.
    static class  ObjectSortedSets.SynchronizedSortedSet<K>
    A synchronized wrapper class for sorted sets.
    static class  ObjectSortedSets.UnmodifiableSortedSet<K>
    An unmodifiable wrapper class for sorted sets.

  • Field Summary

    Fields
    Modifier and Type Field Description
    static ObjectSortedSets.EmptySet EMPTY_SET
    An empty sorted set (immutable).

  • Method Summary

    Modifier and Type Method Description
    static <K> ObjectSet<K> emptySet()
    Returns an empty sorted set (immutable).
    static <K> ObjectSortedSet<K> singleton​(K element)
    Returns a type-specific immutable sorted set containing only the specified element.
    static <K> ObjectSortedSet<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.
    static <K> ObjectSortedSet<K> synchronize​(ObjectSortedSet<K> s)
    Returns a synchronized type-specific sorted set backed by the given type-specific sorted set.
    static <K> ObjectSortedSet<K> synchronize​(ObjectSortedSet<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.
    static <K> ObjectSortedSet<K> unmodifiable​(ObjectSortedSet<K> s)
    Returns an unmodifiable type-specific sorted set backed by the given type-specific sorted set.

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

    • EMPTY_SET

      public static final ObjectSortedSets.EmptySet EMPTY_SET
      An empty sorted set (immutable). It is serializable and cloneable.

  • Method Details

    • emptySet

      public static <K> ObjectSet<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> ObjectSortedSet<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> ObjectSortedSet<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> ObjectSortedSet<K> synchronize​(ObjectSortedSet<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> ObjectSortedSet<K> synchronize​(ObjectSortedSet<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> ObjectSortedSet<K> unmodifiable​(ObjectSortedSet<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)