moving h-source subdir out.

5 files changed, 0 insertions, 819 deletions

diff --git a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/ArrayKeyCache.php b/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/ArrayKeyCache.php
deleted file mode 100755
index fe3b7c9..0000000
--- a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/ArrayKeyCache.php
+++ /dev/null
@@ -1,209 +0,0 @@
-<?php
-
-/*
- * This file is part of SwiftMailer.
- * (c) 2004-2009 Chris Corbyn
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-//@require 'Swift/KeyCache.php';
-//@require 'Swift/KeyCacheInputStream.php';
-//@require 'Swift/InputByteStream.php';
-//@require 'Swift/OutputByteStrean.php';
-//@require 'Swift/SwiftException.php';
-
-/**
- * A basic KeyCache backed by an array.
- * @package Swift
- * @subpackage KeyCache
- * @author Chris Corbyn
- */
-class Swift_KeyCache_ArrayKeyCache implements Swift_KeyCache
-{
-  
-  /**
-   * Cache contents.
-   * @var array
-   * @access private
-   */
-  private $_contents = array();
-  
-  /**
-   * An InputStream for cloning.
-   * @var Swift_KeyCache_KeyCacheInputStream
-   * @access private
-   */
-  private $_stream;
-  
-  /**
-   * Create a new ArrayKeyCache with the given $stream for cloning to make
-   * InputByteStreams.
-   * @param Swift_KeyCache_KeyCacheInputStream $stream
-   */
-  public function __construct(Swift_KeyCache_KeyCacheInputStream $stream)
-  {
-    $this->_stream = $stream;
-  }
-  
-  /**
-   * Set a string into the cache under $itemKey for the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param string $string
-   * @param int $mode
-   * @see MODE_WRITE, MODE_APPEND
-   */
-  public function setString($nsKey, $itemKey, $string, $mode)
-  {
-    $this->_prepareCache($nsKey);
-    switch ($mode)
-    {
-      case self::MODE_WRITE:
-        $this->_contents[$nsKey][$itemKey] = $string;
-        break;
-      case self::MODE_APPEND:
-        if (!$this->hasKey($nsKey, $itemKey))
-        {
-          $this->_contents[$nsKey][$itemKey] = '';
-        }
-        $this->_contents[$nsKey][$itemKey] .= $string;
-        break;
-      default:
-        throw new Swift_SwiftException(
-          'Invalid mode [' . $mode . '] used to set nsKey='.
-          $nsKey . ', itemKey=' . $itemKey
-          );
-    }
-  }
-  
-  /**
-   * Set a ByteStream into the cache under $itemKey for the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param Swift_OutputByteStream $os
-   * @param int $mode
-   * @see MODE_WRITE, MODE_APPEND
-   */
-  public function importFromByteStream($nsKey, $itemKey, Swift_OutputByteStream $os,
-    $mode)
-  {
-    $this->_prepareCache($nsKey);
-    switch ($mode)
-    {
-      case self::MODE_WRITE:
-        $this->clearKey($nsKey, $itemKey);
-      case self::MODE_APPEND:
-        if (!$this->hasKey($nsKey, $itemKey))
-        {
-          $this->_contents[$nsKey][$itemKey] = '';
-        }
-        while (false !== $bytes = $os->read(8192))
-        {
-          $this->_contents[$nsKey][$itemKey] .= $bytes;
-        }
-        break;
-      default:
-        throw new Swift_SwiftException(
-          'Invalid mode [' . $mode . '] used to set nsKey='.
-          $nsKey . ', itemKey=' . $itemKey
-          );
-    }
-  }
-  
-  /**
-   * Provides a ByteStream which when written to, writes data to $itemKey.
-   * NOTE: The stream will always write in append mode.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return Swift_InputByteStream
-   */
-  public function getInputByteStream($nsKey, $itemKey,
-    Swift_InputByteStream $writeThrough = null)
-  {
-    $is = clone $this->_stream;
-    $is->setKeyCache($this);
-    $is->setNsKey($nsKey);
-    $is->setItemKey($itemKey);
-    if (isset($writeThrough))
-    {
-      $is->setWriteThroughStream($writeThrough);
-    }
-    return $is;
-  }
-  
-  /**
-   * Get data back out of the cache as a string.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return string
-   */
-  public function getString($nsKey, $itemKey)
-  {
-    $this->_prepareCache($nsKey);
-    if ($this->hasKey($nsKey, $itemKey))
-    {
-      return $this->_contents[$nsKey][$itemKey];
-    }
-  }
-  
-  /**
-   * Get data back out of the cache as a ByteStream.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param Swift_InputByteStream $is to write the data to
-   */
-  public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
-  {
-    $this->_prepareCache($nsKey);
-    $is->write($this->getString($nsKey, $itemKey));
-  }
-  
-  /**
-   * Check if the given $itemKey exists in the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return boolean
-   */
-  public function hasKey($nsKey, $itemKey)
-  {
-    $this->_prepareCache($nsKey);
-    return array_key_exists($itemKey, $this->_contents[$nsKey]);
-  }
-  
-  /**
-   * Clear data for $itemKey in the namespace $nsKey if it exists.
-   * @param string $nsKey
-   * @param string $itemKey
-   */
-  public function clearKey($nsKey, $itemKey)
-  {
-    unset($this->_contents[$nsKey][$itemKey]);
-  }
-  
-  /**
-   * Clear all data in the namespace $nsKey if it exists.
-   * @param string $nsKey
-   */
-  public function clearAll($nsKey)
-  {
-    unset($this->_contents[$nsKey]);
-  }
-  
-  // -- Private methods
-  
-  /**
-   * Initialize the namespace of $nsKey if needed.
-   * @param string $nsKey
-   * @access private
-   */
-  private function _prepareCache($nsKey)
-  {
-    if (!array_key_exists($nsKey, $this->_contents))
-    {
-      $this->_contents[$nsKey] = array();
-    }
-  }
-  
-}
diff --git a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php b/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php
deleted file mode 100755
index 599fd6c..0000000
--- a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/DiskKeyCache.php
+++ /dev/null
@@ -1,316 +0,0 @@
-<?php
-
-/*
- * This file is part of SwiftMailer.
- * (c) 2004-2009 Chris Corbyn
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-//@require 'Swift/KeyCache.php';
-//@require 'Swift/KeyCacheInputStream.php';
-//@require 'Swift/InputByteStream.php';
-//@require 'Swift/OutputByteStrean.php';
-//@require 'Swift/SwiftException.php';
-//@require 'Swift/IoException.php';
-
-/**
- * A KeyCache which streams to and from disk.
- * @package Swift
- * @subpackage KeyCache
- * @author Chris Corbyn
- */
-class Swift_KeyCache_DiskKeyCache implements Swift_KeyCache
-{
-
-  /** Signal to place pointer at start of file */
-  const POSITION_START = 0;
-
-  /** Signal to place pointer at end of file */
-  const POSITION_END = 1;
-
-  /**
-   * An InputStream for cloning.
-   * @var Swift_KeyCache_KeyCacheInputStream
-   * @access private
-   */
-  private $_stream;
-
-  /**
-   * A path to write to.
-   * @var string
-   * @access private
-   */
-  private $_path;
-
-  /**
-   * Stored keys.
-   * @var array
-   * @access private
-   */
-  private $_keys = array();
-
-  /**
-   * Will be true if magic_quotes_runtime is turned on.
-   * @var boolean
-   * @access private
-   */
-  private $_quotes = false;
-
-  /**
-   * Create a new DiskKeyCache with the given $stream for cloning to make
-   * InputByteStreams, and the given $path to save to.
-   * @param Swift_KeyCache_KeyCacheInputStream $stream
-   * @param string $path to save to
-   */
-  public function __construct(Swift_KeyCache_KeyCacheInputStream $stream, $path)
-  {
-    $this->_stream = $stream;
-    $this->_path = $path;
-    $this->_quotes = get_magic_quotes_runtime();
-  }
-
-  /**
-   * Set a string into the cache under $itemKey for the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param string $string
-   * @param int $mode
-   * @throws Swift_IoException
-   * @see MODE_WRITE, MODE_APPEND
-   */
-  public function setString($nsKey, $itemKey, $string, $mode)
-  {
-    $this->_prepareCache($nsKey);
-    switch ($mode)
-    {
-      case self::MODE_WRITE:
-        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
-        break;
-      case self::MODE_APPEND:
-        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_END);
-        break;
-      default:
-        throw new Swift_SwiftException(
-          'Invalid mode [' . $mode . '] used to set nsKey='.
-          $nsKey . ', itemKey=' . $itemKey
-          );
-        break;
-    }
-    fwrite($fp, $string);
-  }
-
-  /**
-   * Set a ByteStream into the cache under $itemKey for the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param Swift_OutputByteStream $os
-   * @param int $mode
-   * @see MODE_WRITE, MODE_APPEND
-   * @throws Swift_IoException
-   */
-  public function importFromByteStream($nsKey, $itemKey, Swift_OutputByteStream $os,
-    $mode)
-  {
-    $this->_prepareCache($nsKey);
-    switch ($mode)
-    {
-      case self::MODE_WRITE:
-        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
-        break;
-      case self::MODE_APPEND:
-        $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_END);
-        break;
-      default:
-        throw new Swift_SwiftException(
-          'Invalid mode [' . $mode . '] used to set nsKey='.
-          $nsKey . ', itemKey=' . $itemKey
-          );
-        break;
-    }
-    while (false !== $bytes = $os->read(8192))
-    {
-      fwrite($fp, $bytes);
-    }
-  }
-
-  /**
-   * Provides a ByteStream which when written to, writes data to $itemKey.
-   * NOTE: The stream will always write in append mode.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return Swift_InputByteStream
-   */
-  public function getInputByteStream($nsKey, $itemKey,
-    Swift_InputByteStream $writeThrough = null)
-  {
-    $is = clone $this->_stream;
-    $is->setKeyCache($this);
-    $is->setNsKey($nsKey);
-    $is->setItemKey($itemKey);
-    if (isset($writeThrough))
-    {
-      $is->setWriteThroughStream($writeThrough);
-    }
-    return $is;
-  }
-
-  /**
-   * Get data back out of the cache as a string.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return string
-   * @throws Swift_IoException
-   */
-  public function getString($nsKey, $itemKey)
-  {
-    $this->_prepareCache($nsKey);
-    if ($this->hasKey($nsKey, $itemKey))
-    {
-      $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
-      if ($this->_quotes)
-      {
-        set_magic_quotes_runtime(0);
-      }
-      $str = '';
-      while (!feof($fp) && false !== $bytes = fread($fp, 8192))
-      {
-        $str .= $bytes;
-      }
-      if ($this->_quotes)
-      {
-        set_magic_quotes_runtime(1);
-      }
-      return $str;
-    }
-  }
-
-  /**
-   * Get data back out of the cache as a ByteStream.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param Swift_InputByteStream $is to write the data to
-   */
-  public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
-  {
-    if ($this->hasKey($nsKey, $itemKey))
-    {
-      $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_START);
-      if ($this->_quotes)
-      {
-        set_magic_quotes_runtime(0);
-      }
-      while (!feof($fp) && false !== $bytes = fread($fp, 8192))
-      {
-        $is->write($bytes);
-      }
-      if ($this->_quotes)
-      {
-        set_magic_quotes_runtime(1);
-      }
-    }
-  }
-
-  /**
-   * Check if the given $itemKey exists in the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return boolean
-   */
-  public function hasKey($nsKey, $itemKey)
-  {
-    return is_file($this->_path . '/' . $nsKey . '/' . $itemKey);
-  }
-
-  /**
-   * Clear data for $itemKey in the namespace $nsKey if it exists.
-   * @param string $nsKey
-   * @param string $itemKey
-   */
-  public function clearKey($nsKey, $itemKey)
-  {
-    if ($this->hasKey($nsKey, $itemKey))
-    {
-      $fp = $this->_getHandle($nsKey, $itemKey, self::POSITION_END);
-      fclose($fp);
-      unlink($this->_path . '/' . $nsKey . '/' . $itemKey);
-    }
-    unset($this->_keys[$nsKey][$itemKey]);
-  }
-
-  /**
-   * Clear all data in the namespace $nsKey if it exists.
-   * @param string $nsKey
-   */
-  public function clearAll($nsKey)
-  {
-    if (array_key_exists($nsKey, $this->_keys))
-    {
-      foreach ($this->_keys[$nsKey] as $itemKey=>$null)
-      {
-        $this->clearKey($nsKey, $itemKey);
-      }
-      rmdir($this->_path . '/' . $nsKey);
-      unset($this->_keys[$nsKey]);
-    }
-  }
-
-  // -- Private methods
-
-  /**
-   * Initialize the namespace of $nsKey if needed.
-   * @param string $nsKey
-   * @access private
-   */
-  private function _prepareCache($nsKey)
-  {
-    $cacheDir = $this->_path . '/' . $nsKey;
-    if (!is_dir($cacheDir))
-    {
-      if (!mkdir($cacheDir))
-      {
-        throw new Swift_IoException('Failed to create cache directory ' . $cacheDir);
-      }
-      $this->_keys[$nsKey] = array();
-    }
-  }
-
-  /**
-   * Get a file handle on the cache item.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param int $position
-   * @return resource
-   * @access private
-   */
-  private function _getHandle($nsKey, $itemKey, $position)
-  {
-    if (!isset($this->_keys[$nsKey]) || !array_key_exists($itemKey, $this->_keys[$nsKey]))
-    {
-      $fp = fopen($this->_path . '/' . $nsKey . '/' . $itemKey, 'w+b');
-      $this->_keys[$nsKey][$itemKey] = $fp;
-    }
-    if (self::POSITION_START == $position)
-    {
-      fseek($this->_keys[$nsKey][$itemKey], 0, SEEK_SET);
-    }
-    else
-    {
-      fseek($this->_keys[$nsKey][$itemKey], 0, SEEK_END);
-    }
-    return $this->_keys[$nsKey][$itemKey];
-  }
-
-  /**
-   * Destructor.
-   */
-  public function __destruct()
-  {
-    foreach ($this->_keys as $nsKey=>$null)
-    {
-      $this->clearAll($nsKey);
-    }
-  }
-
-}
diff --git a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/KeyCacheInputStream.php b/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/KeyCacheInputStream.php
deleted file mode 100755
index a1f4440..0000000
--- a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/KeyCacheInputStream.php
+++ /dev/null
@@ -1,53 +0,0 @@
-<?php
-
-/*
- * This file is part of SwiftMailer.
- * (c) 2004-2009 Chris Corbyn
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-//@require 'Swift/KeyCache.php';
-//@require 'Swift/InputByteStream.php';
-
-/**
- * Writes data to a KeyCache using a stream.
- * @package Swift
- * @subpackage KeyCache
- * @author Chris Corbyn
- */
-interface Swift_KeyCache_KeyCacheInputStream extends Swift_InputByteStream
-{
-  
-  /**
-   * Set the KeyCache to wrap.
-   * @param Swift_KeyCache $keyCache
-   */
-  public function setKeyCache(Swift_KeyCache $keyCache);
-  
-  /**
-   * Set the nsKey which will be written to.
-   * @param string $nsKey
-   */
-  public function setNsKey($nsKey);
-  
-  /**
-   * Set the itemKey which will be written to.
-   * @param string $itemKey
-   */
-  public function setItemKey($itemKey);
-  
-  /**
-   * Specify a stream to write through for each write().
-   * @param Swift_InputByteStream $is
-   */
-  public function setWriteThroughStream(Swift_InputByteStream $is);
-  
-  /**
-   * Any implementation should be cloneable, allowing the clone to access a
-   * separate $nsKey and $itemKey.
-   */
-  public function __clone();
-  
-}
diff --git a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/NullKeyCache.php b/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/NullKeyCache.php
deleted file mode 100755
index 2646522..0000000
--- a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/NullKeyCache.php
+++ /dev/null
@@ -1,110 +0,0 @@
-<?php
-
-/*
- * This file is part of SwiftMailer.
- * (c) 2004-2009 Chris Corbyn
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-//@require 'Swift/KeyCache.php';
-//@require 'Swift/KeyCacheInputStream.php';
-//@require 'Swift/InputByteStream.php';
-//@require 'Swift/OutputByteStrean.php';
-
-/**
- * A null KeyCache that does not cache at all.
- * @package Swift
- * @subpackage KeyCache
- * @author Chris Corbyn
- */
-class Swift_KeyCache_NullKeyCache implements Swift_KeyCache
-{
-  
-  /**
-   * Set a string into the cache under $itemKey for the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param string $string
-   * @param int $mode
-   * @see MODE_WRITE, MODE_APPEND
-   */
-  public function setString($nsKey, $itemKey, $string, $mode)
-  {
-  }
-  
-  /**
-   * Set a ByteStream into the cache under $itemKey for the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param Swift_OutputByteStream $os
-   * @param int $mode
-   * @see MODE_WRITE, MODE_APPEND
-   */
-  public function importFromByteStream($nsKey, $itemKey, Swift_OutputByteStream $os,
-    $mode)
-  {
-  }
-  
-  /**
-   * Provides a ByteStream which when written to, writes data to $itemKey.
-   * NOTE: The stream will always write in append mode.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return Swift_InputByteStream
-   */
-  public function getInputByteStream($nsKey, $itemKey,
-    Swift_InputByteStream $writeThrough = null)
-  {
-  }
-  
-  /**
-   * Get data back out of the cache as a string.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return string
-   */
-  public function getString($nsKey, $itemKey)
-  {
-  }
-  
-  /**
-   * Get data back out of the cache as a ByteStream.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @param Swift_InputByteStream $is to write the data to
-   */
-  public function exportToByteStream($nsKey, $itemKey, Swift_InputByteStream $is)
-  {
-  }
-  
-  /**
-   * Check if the given $itemKey exists in the namespace $nsKey.
-   * @param string $nsKey
-   * @param string $itemKey
-   * @return boolean
-   */
-  public function hasKey($nsKey, $itemKey)
-  {
-    return false;
-  }
-  
-  /**
-   * Clear data for $itemKey in the namespace $nsKey if it exists.
-   * @param string $nsKey
-   * @param string $itemKey
-   */
-  public function clearKey($nsKey, $itemKey)
-  {
-  }
-  
-  /**
-   * Clear all data in the namespace $nsKey if it exists.
-   * @param string $nsKey
-   */
-  public function clearAll($nsKey)
-  {
-  }
-  
-}
diff --git a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/SimpleKeyCacheInputStream.php b/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/SimpleKeyCacheInputStream.php
deleted file mode 100755
index 87cdced..0000000
--- a/h-source/External/swiftmailer/lib/classes/Swift/KeyCache/SimpleKeyCacheInputStream.php
+++ /dev/null
@@ -1,131 +0,0 @@
-<?php
-
-/*
- * This file is part of SwiftMailer.
- * (c) 2004-2009 Chris Corbyn
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-//@require 'Swift/KeyCache.php';
-//@require 'Swift/KeyCacheInputStream.php';
-
-/**
- * Writes data to a KeyCache using a stream.
- * @package Swift
- * @subpackage KeyCache
- * @author Chris Corbyn
- */
-class Swift_KeyCache_SimpleKeyCacheInputStream
-  implements Swift_KeyCache_KeyCacheInputStream
-{
-  
-  /** The KeyCache being written to */
-  private $_keyCache;
-  
-  /** The nsKey of the KeyCache being written to */
-  private $_nsKey;
-  
-  /** The itemKey of the KeyCache being written to */
-  private $_itemKey;
-  
-  /** A stream to write through on each write() */
-  private $_writeThrough = null;
-  
-  /**
-   * Set the KeyCache to wrap.
-   * @param Swift_KeyCache $keyCache
-   */
-  public function setKeyCache(Swift_KeyCache $keyCache)
-  {
-    $this->_keyCache = $keyCache;
-  }
-  
-  /**
-   * Specify a stream to write through for each write().
-   * @param Swift_InputByteStream $is
-   */
-  public function setWriteThroughStream(Swift_InputByteStream $is)
-  {
-    $this->_writeThrough = $is;
-  }
-  
-  /**
-   * Writes $bytes to the end of the stream.
-   * @param string $bytes
-   * @param Swift_InputByteStream $is, optional
-   */
-  public function write($bytes, Swift_InputByteStream $is = null)
-  {
-    $this->_keyCache->setString(
-      $this->_nsKey, $this->_itemKey, $bytes, Swift_KeyCache::MODE_APPEND
-      );
-    if (isset($is))
-    {
-      $is->write($bytes);
-    }
-    if (isset($this->_writeThrough))
-    {
-      $this->_writeThrough->write($bytes);
-    }
-  }
-  
-  /**
-   * Not used.
-   */
-  public function commit()
-  {
-  }
-  
-  /**
-   * Not used.
-   */
-  public function bind(Swift_InputByteStream $is)
-  {
-  }
-  
-  /**
-   * Not used.
-   */
-  public function unbind(Swift_InputByteStream $is)
-  {
-  }
-  
-  /**
-   * Flush the contents of the stream (empty it) and set the internal pointer
-   * to the beginning.
-   */
-  public function flushBuffers()
-  {
-    $this->_keyCache->clearKey($this->_nsKey, $this->_itemKey);
-  }
-  
-  /**
-   * Set the nsKey which will be written to.
-   * @param string $nsKey
-   */
-  public function setNsKey($nsKey)
-  {
-    $this->_nsKey = $nsKey;
-  }
-  
-  /**
-   * Set the itemKey which will be written to.
-   * @param string $itemKey
-   */
-  public function setItemKey($itemKey)
-  {
-    $this->_itemKey = $itemKey;
-  }
-  
-  /**
-   * Any implementation should be cloneable, allowing the clone to access a
-   * separate $nsKey and $itemKey.
-   */
-  public function __clone()
-  {
-    $this->_writeThrough = null;
-  }
-  
-}