<?php
/* $Id$ */
namespace Mammut\Storage\VFS;

(defined('MAMMUT') && (basename(__FILE__) != basename($_SERVER['PHP_SELF']))) or die('ACCESS DENIED');

/**
 * Virtual file system interface
 *
 * @author Stefan Daurer <s.daurer@q-spot.org>
 * @package Mammut\Storage
 */
interface iVFS {
	
	public function ls($prefix, $start = 0, $max = -1);
	
	public function store($prefix, $name, $blob);

	public function append($prefix, $name, $blob);
	
	public function replace($prefix, $name, $blob);
	
	public function exists($prefix, $name);
	
	public function get($prefix, $name);
	
	public function getPart($prefix, $name, $start, $lenght);
	
	public function size($prefix, $name);
	
	public function delete($prefix, $name = FALSE);
	
	/**
	 * Some storage systems (e.g. simple webserver directories) allow direct linking of content.
	 * Those systems should 
	 */
	public function isDirectLinkSupported();
	
	public function getDirectLink($prefix, $name);
	
}