<?php

//copyright Lawrence Truett and FluffyCat.com 2005, all rights reserved

  include_once('BookListIterator.php');

  class BookListReverseIterator extends BookListIterator {

    public function __construct(BookList $bookList_in) {
      $this->bookList = $bookList_in;
	  $this->currentBook = $this->bookList->getBookCount() + 1;
    }

    public function getNextBook() {
	  if ($this->hasNextBook()) {
        return $this->bookList->getBook(--$this->currentBook);
      } else {
        return NULL;
      }
    }

    public function hasNextBook() {
      if (1 < $this->currentBook) {
	    return TRUE;
	  } else {
        return FALSE;
	  }
    }
	
  }
?>