Class Enumerator<E>

  • All Implemented Interfaces:
    java.util.Enumeration<E>

    public final class Enumerator<E>
    extends java.lang.Object
    implements java.util.Enumeration<E>
    HttpHandler class that wraps an Enumeration around a Java2 collection classes object Iterator so that existing APIs returning Enumerations can easily run on top of the new collections. Constructors are provided to easily create such wrappers.
    Version:
    $Revision: 1.3 $ $Date: 2007/06/18 14:17:08 $
    Author:
    Craig R. McClanahan
    • Constructor Summary

      Constructors 
      Constructor Description
      Enumerator​(java.lang.Iterable<E> iterable)
      Return an Enumeration over the values returned by the specified Iterable.
      Enumerator​(java.lang.Iterable<E> iterable, boolean clone)
      Return an Enumeration over the values returned by the specified Iterable.
      Enumerator​(java.util.Collection<E> collection)
      Return an Enumeration over the values of the specified Collection.
      Enumerator​(java.util.Collection<E> collection, boolean clone)
      Return an Enumeration over the values of the specified Collection.
      Enumerator​(java.util.Iterator<E> iterator)
      Return an Enumeration over the values returned by the specified Iterator.
      Enumerator​(java.util.Iterator<E> iterator, boolean clone)
      Return an Enumeration over the values returned by the specified Iterator.
      Enumerator​(java.util.Map<?,​E> map)
      Return an Enumeration over the values of the specified Map.
      Enumerator​(java.util.Map<?,​E> map, boolean clone)
      Return an Enumeration over the values of the specified Map.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean hasMoreElements()
      Tests if this enumeration contains more elements.
      E nextElement()
      Returns the next element of this enumeration if this enumeration has at least one more element to provide.
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
      • Methods inherited from interface java.util.Enumeration

        asIterator
    • Constructor Detail

      • Enumerator

        public Enumerator​(java.util.Collection<E> collection)
        Return an Enumeration over the values of the specified Collection.
        Parameters:
        collection - Collection whose values should be enumerated
      • Enumerator

        public Enumerator​(java.util.Collection<E> collection,
                          boolean clone)
        Return an Enumeration over the values of the specified Collection.
        Parameters:
        collection - Collection whose values should be enumerated
        clone - true to clone iterator
      • Enumerator

        public Enumerator​(java.lang.Iterable<E> iterable)
        Return an Enumeration over the values returned by the specified Iterable.
        Parameters:
        iterable - Iterable to be wrapped
      • Enumerator

        public Enumerator​(java.lang.Iterable<E> iterable,
                          boolean clone)
        Return an Enumeration over the values returned by the specified Iterable.
        Parameters:
        iterable - Iterable to be wrapped
        clone - true to clone iterator
      • Enumerator

        public Enumerator​(java.util.Iterator<E> iterator)
        Return an Enumeration over the values returned by the specified Iterator.
        Parameters:
        iterator - Iterator to be wrapped
      • Enumerator

        public Enumerator​(java.util.Iterator<E> iterator,
                          boolean clone)
        Return an Enumeration over the values returned by the specified Iterator.
        Parameters:
        iterator - Iterator to be wrapped
        clone - true to clone iterator
      • Enumerator

        public Enumerator​(java.util.Map<?,​E> map)
        Return an Enumeration over the values of the specified Map.
        Parameters:
        map - Map whose values should be enumerated
      • Enumerator

        public Enumerator​(java.util.Map<?,​E> map,
                          boolean clone)
        Return an Enumeration over the values of the specified Map.
        Parameters:
        map - Map whose values should be enumerated
        clone - true to clone iterator
    • Method Detail

      • hasMoreElements

        public boolean hasMoreElements()
        Tests if this enumeration contains more elements.
        Specified by:
        hasMoreElements in interface java.util.Enumeration<E>
        Returns:
        true if and only if this enumeration object contains at least one more element to provide, false otherwise
      • nextElement

        public E nextElement()
                      throws java.util.NoSuchElementException
        Returns the next element of this enumeration if this enumeration has at least one more element to provide.
        Specified by:
        nextElement in interface java.util.Enumeration<E>
        Returns:
        the next element of this enumeration
        Throws:
        java.util.NoSuchElementException - if no more elements exist