Iterator.php

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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4: */
//  
//  Copyright (c) 2003 Laurent Bedubourg
//  
//  This library is free software; you can redistribute it and/or
//  modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation; either
//  version 2.1 of the License, or (at your option) any later version.
//  
//  This library is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//  
//  You should have received a copy of the GNU Lesser General Public
//  License along with this library; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Authors: Laurent Bedubourg <laurent.bedubourg@free.fr>
//  

class Iterable
{
    function size(){}

    function &getNewIterator(){}
}


class Iterator
{
    function reset()
    {
        return PEAR::raiseError('\'reset\' method not implemented');
    }
    
    function isValid()
    {
        return PEAR::raiseError('\'isValid\' method not implemented');
    }
    
    function &next()
    {
        return PEAR::raiseError('\'next\' method not implemented');
    }
    
    // ----------------------------------------------------------------------
    // getters
    // ----------------------------------------------------------------------
    
    function index()
    {
        return PEAR::raiseError('\'index\' method not implemented');
    }
    
    function &value()
    {
        return PEAR::raiseError('\'value\' method not implemented');
    }

    // ----------------------------------------------------------------------
    // optional methods
    // ----------------------------------------------------------------------
    
    function key()
    {
        return $this->index();
    }
    
    function remove()
    {
        return PEAR::raiseError('\'remove\' method not implemented');
    }
}

class ResetFailed extends PEAR_Error 
{
}

?>

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