--- /dev/null
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category Zend
+ * @package Zend_Search_Lucene
+ * @subpackage Index
+ * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ * @version $Id: TermsPriorityQueue.php 16541 2009-07-07 06:59:03Z bkarwin $
+ */
+
+/** Zend_Search_Lucene */
+require_once 'Zend/Search/Lucene/PriorityQueue.php';
+
+/**
+ * @category Zend
+ * @package Zend_Search_Lucene
+ * @subpackage Index
+ * @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license http://framework.zend.com/license/new-bsd New BSD License
+ */
+class Zend_Search_Lucene_Index_TermsPriorityQueue extends Zend_Search_Lucene_PriorityQueue
+{
+ /**
+ * Compare elements
+ *
+ * Returns true, if $termsStream1 is "less" than $termsStream2; else otherwise
+ *
+ * @param mixed $termsStream1
+ * @param mixed $termsStream2
+ * @return boolean
+ */
+ protected function _less($termsStream1, $termsStream2)
+ {
+ return strcmp($termsStream1->currentTerm()->key(), $termsStream2->currentTerm()->key()) < 0;
+ }
+
+}