Class IntSets


  • public final class IntSets
    extends Object
    A class providing static methods and objects that do useful things with type-specific sets.
    See Also:
    Collections
    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  IntSets.EmptySet
      An immutable class representing the empty set and implementing a type-specific set interface.
      static class  IntSets.Singleton
      An immutable class representing a type-specific singleton set.
      static class  IntSets.SynchronizedSet
      A synchronized wrapper class for sets.
      static class  IntSets.UnmodifiableSet
      An unmodifiable wrapper class for sets.
    • Field Detail

      • EMPTY_SET

        public static final IntSets.EmptySet EMPTY_SET
        An empty set (immutable). It is serializable and cloneable.
    • Method Detail

      • singleton

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

        public static IntSet singleton​(Integer element)
        Returns a type-specific immutable set containing only the specified element. The returned set is serializable and cloneable.
        Parameters:
        element - the only element of the returned set.
        Returns:
        a type-specific immutable set containing just element.
      • synchronize

        public static IntSet synchronize​(IntSet s)
        Returns a synchronized type-specific set backed by the given type-specific set.
        Parameters:
        s - the set to be wrapped in a synchronized set.
        Returns:
        a synchronized view of the specified set.
        See Also:
        Collections.synchronizedSet(Set)
      • synchronize

        public static IntSet synchronize​(IntSet s,
                                         Object sync)
        Returns a synchronized type-specific set backed by the given type-specific set, using an assigned object to synchronize.
        Parameters:
        s - the set to be wrapped in a synchronized set.
        sync - an object that will be used to synchronize the access to the set.
        Returns:
        a synchronized view of the specified set.
        See Also:
        Collections.synchronizedSet(Set)
      • unmodifiable

        public static IntSet unmodifiable​(IntSet s)
        Returns an unmodifiable type-specific set backed by the given type-specific set.
        Parameters:
        s - the set to be wrapped in an unmodifiable set.
        Returns:
        an unmodifiable view of the specified set.
        See Also:
        Collections.unmodifiableSet(Set)