Class TransformedNavigableSet<E>

  • All Implemented Interfaces:
    Serializable, Iterable<E>, Collection<E>, NavigableSet<E>, Set<E>, SortedSet<E>


    public class TransformedNavigableSet<E>
    extends TransformedSortedSet<E>
    implements NavigableSet<E>
    Decorates another NavigableSet to transform objects that are added.

    The add methods are affected by this class. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.

    Since:
    4.1
    See Also:
    Serialized Form
    • Constructor Detail

      • TransformedNavigableSet

        protected TransformedNavigableSet(NavigableSet<E> set,
                                          Transformer<? super E,? extends E> transformer)
        Constructor that wraps (not copies).

        If there are any elements already in the set being decorated, they are NOT transformed.

        Parameters:
        set - the set to decorate, must not be null
        transformer - the transformer to use for conversion, must not be null
        Throws:
        NullPointerException - if set or transformer is null
    • Method Detail

      • transformingNavigableSet

        public static <E> TransformedNavigableSet<E> transformingNavigableSet(NavigableSet<E> set,
                                                                              Transformer<? super E,? extends E> transformer)
        Factory method to create a transforming navigable set.

        If there are any elements already in the set being decorated, they are NOT transformed. Contrast this with transformedNavigableSet(NavigableSet, Transformer).

        Type Parameters:
        E - the element type
        Parameters:
        set - the set to decorate, must not be null
        transformer - the transformer to use for conversion, must not be null
        Returns:
        a new transformed NavigableSet
        Throws:
        NullPointerException - if set or transformer is null
      • transformedNavigableSet

        public static <E> TransformedNavigableSet<E> transformedNavigableSet(NavigableSet<E> set,
                                                                             Transformer<? super E,? extends E> transformer)
        Factory method to create a transforming navigable set that will transform existing contents of the specified navigable set.

        If there are any elements already in the set being decorated, they will be transformed by this method. Contrast this with transformingNavigableSet(NavigableSet, Transformer).

        Type Parameters:
        E - the element type
        Parameters:
        set - the set to decorate, must not be null
        transformer - the transformer to use for conversion, must not be null
        Returns:
        a new transformed NavigableSet
        Throws:
        NullPointerException - if set or transformer is null
      • lower

        public E lower(E e)
      • floor

        public E floor(E e)
      • ceiling

        public E ceiling(E e)
      • higher

        public E higher(E e)
      • pollFirst

        public E pollFirst()
      • pollLast

        public E pollLast()
      • descendingIterator

        public Iterator<E> descendingIterator()
      • subSet

        public NavigableSet<E> subSet(E fromElement,
                                      boolean fromInclusive,
                                      E toElement,
                                      boolean toInclusive)
      • headSet

        public NavigableSet<E> headSet(E toElement,
                                       boolean inclusive)
      • tailSet

        public NavigableSet<E> tailSet(E fromElement,
                                       boolean inclusive)