Source for file HarmoniNodeIterator.class.php

<?php
 
require_once(OKI2."/osid/hierarchy/NodeIterator.php");
require_once(HARMONI."oki2/shared/HarmoniIterator.class.php");
 
/**
 * NodeIterator provides access to these objects sequentially, one at a time.
 * The purpose of all Iterators is to to offer a way for OSID methods to
 * return multiple values of a common type and not use an array.  Returning an
 * array may not be appropriate if the number of values returned is large or
 * is fetched remotely.     Iterators do not allow access to values by index,
 * rather you must access values in sequence. Similarly, there is no way to go
 * backwards through the sequence unless you place the values in a data
 * structure, such as an array, that allows for access by index.
 * 
 * <p>
 * OSID Version: 2.0
 * </p>
 *
 * @package harmoni.osid_v2.hierarchy
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: HarmoniNodeIterator.class.php,v 1.7 2007/09/04 20:25:41 adamfranco Exp $
 */
class HarmoniNodeIterator
    extends HarmoniIterator
//    implements NodeIterator
 
{
    /**
     * Return true if there is an additional  Node ; false otherwise.
     *    
     * @return boolean 
     * 
     * @throws object HierarchyException An exception with one of
     *            the following messages defined in
     *            org.osid.hierarchy.HierarchyException may be thrown:     {@link }
     *            org.osid.hierarchy.HierarchyException#OPERATION_FAILED
     *            OPERATION_FAILED}, {@link }
     *            org.osid.hierarchy.HierarchyException#PERMISSION_DENIED
     *            PERMISSION_DENIED}, {@link }
     *            org.osid.hierarchy.HierarchyException#CONFIGURATION_ERROR
     *            CONFIGURATION_ERROR}, {@link }
     *            org.osid.hierarchy.HierarchyException#UNIMPLEMENTED
     *            UNIMPLEMENTED}
     * 
     * @access public
     */
    function hasNextNode () { 
        return $this->hasNext();
    } 
 
    /**
     * Return the next Node.
     *    
     * @return object Node 
     * 
     * @throws object HierarchyException An exception with one of
     *            the following messages defined in
     *            org.osid.hierarchy.HierarchyException may be thrown:     {@link }
     *            org.osid.hierarchy.HierarchyException#OPERATION_FAILED
     *            OPERATION_FAILED}, {@link }
     *            org.osid.hierarchy.HierarchyException#PERMISSION_DENIED
     *            PERMISSION_DENIED}, {@link }
     *            org.osid.hierarchy.HierarchyException#CONFIGURATION_ERROR
     *            CONFIGURATION_ERROR}, {@link }
     *            org.osid.hierarchy.HierarchyException#UNIMPLEMENTED
     *            UNIMPLEMENTED}, {@link }
     *            org.osid.hierarchy.HierarchyException#NO_MORE_ITERATOR_ELEMENTS
     *            NO_MORE_ITERATOR_ELEMENTS}
     * 
     * @access public
     */
    function nextNode () { 
        return $this->next();
    } 
}
 
?>