/framework/vendor/swift/lib/classes/Swift/KeyCache/NullKeyCache.php

  1<?php
  2
  3/*
  4 * This file is part of SwiftMailer.
  5 * (c) 2004-2009 Chris Corbyn
  6 *
  7 * For the full copyright and license information, please view the LICENSE
  8 * file that was distributed with this source code.
  9 */
 10
 11//@require 'Swift/KeyCache.php';
 12//@require 'Swift/KeyCacheInputStream.php';
 13//@require 'Swift/InputByteStream.php';
 14//@require 'Swift/OutputByteStrean.php';
 15
 16/**
 17 * A null KeyCache that does not cache at all.
 18 * @package Swift
 19 * @subpackage KeyCache
 20 * @author Chris Corbyn
 21 */
 22class Swift_KeyCache_NullKeyCache implements Swift_KeyCache
 23{
 24  
 25  /**
 26   * Set a string into the cache under $itemKey for the namespace $nsKey.
 27   * @param string $nsKey
 28   * @param string $itemKey
 29   * @param string $string
 30   * @param int $mode
 31   * @see MODE_WRITE, MODE_APPEND
 32   */
 33  public function setString($nsKey, $itemKey, $string, $mode)
 34  {
 35  }
 36  
 37  /**
 38   * Set a ByteStream into the cache under $itemKey for the namespace $nsKey.
 39   * @param string $nsKey
 40   * @param string $itemKey
 41   * @param Swift_OutputByteStream $os
 42   * @param int $mode
 43   * @see MODE_WRITE, MODE_APPEND
 44   */
 45  public function importFromByteStream($nsKey, $itemKey, Swift_OutputByteStream $os,
 46    $mode)
 47  {
 48  }
 49  
 50  /**
 51   * Provides a ByteStream which when written to, writes data to $itemKey.
 52   * NOTE: The stream will always write in append mode.
 53   * @param string $nsKey
 54   * @param string $itemKey
 55   * @return Swift_InputByteStream
 56   */
 57  public function getInputByteStream($nsKey, $itemKey,
 58    Swift_InputByteStream $writeThrough = null)
 59  {
 60  }
 61  
 62  /**
 63   * Get data back out of the cache as a string.
 64   * @param string $nsKey
 65   * @param string $itemKey
 66   * @return string
 67   */
 68  public function getString($nsKey, $itemKey)
 69  {
 70  }
 71  
 72  /**
 73   * Get data back out of the cache as a ByteStream.
 74   * @param string $nsKey
 75   * @param string $itemKey
 76   * @param Swift_InputByteStream $is to write the data to
 77   */
 78  public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
 79  {
 80  }
 81  
 82  /**
 83   * Check if the given $itemKey exists in the namespace $nsKey.
 84   * @param string $nsKey
 85   * @param string $itemKey
 86   * @return boolean
 87   */
 88  public function hasKey($nsKey, $itemKey)
 89  {
 90    return false;
 91  }
 92  
 93  /**
 94   * Clear data for $itemKey in the namespace $nsKey if it exists.
 95   * @param string $nsKey
 96   * @param string $itemKey
 97   */
 98  public function clearKey($nsKey, $itemKey)
 99  {
100  }
101  
102  /**
103   * Clear all data in the namespace $nsKey if it exists.
104   * @param string $nsKey
105   */
106  public function clearAll($nsKey)
107  {
108  }
109  
110}