diff options
Diffstat (limited to 'framework/Data/TAPCCache.php')
| -rw-r--r-- | framework/Data/TAPCCache.php | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/framework/Data/TAPCCache.php b/framework/Data/TAPCCache.php deleted file mode 100644 index 5c0a6eba..00000000 --- a/framework/Data/TAPCCache.php +++ /dev/null @@ -1,152 +0,0 @@ -<?php
-/**
- * TAPCCache class file
- *
- * @author Alban Hanry <compte_messagerie@hotmail.com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright © 2005 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Revision: $ $Date: $
- * @package System.Data
- */
-
-/**
- * TAPCCache class
- *
- * TAPCCache implements a cache application module based on {@link http://www.php.net/apc APC}.
- *
- * By definition, cache does not ensure the existence of a value
- * even if it never expires. Cache is not meant to be an persistent storage.
- *
- * To use this module, the APC PHP extension must be loaded and set in the php.ini file the following:
- * <code>
- * apc.cache_by_default=0
- * </code>
- *
- * Some usage examples of TAPCCache are as follows,
- * <code>
- * $cache=new TAPCCache; // TAPCCache may also be loaded as a Prado application module
- * $cache->init(null);
- * $cache->add('object',$object);
- * $object2=$cache->get('object');
- * </code>
- *
- * If loaded, TAPCCache will register itself with {@link TApplication} as the
- * cache module. It can be accessed via {@link TApplication::getCache()}.
- *
- * TAPCCache may be configured in application configuration file as follows
- * <module id="cache" class="System.Data.TAPCCache" />
- *
- * @author Alban Hanry <compte_messagerie@hotmail.com>
- * @version $Revision: $ $Date: $
- * @package System.Data
- * @since 3.0b
- */
-class TAPCCache extends TModule implements ICache
-{
- /**
- * @var boolean if the module is initialized
- */
- private $_initialized=false;
-
- /**
- * @var string a unique prefix used to identify this cache instance from the others
- */
- protected $_prefix=null;
-
- /**
- * Initializes this module.
- * This method is required by the IModule interface.
- * @param TXmlElement configuration for this module, can be null
- * @throws TConfigurationException if apc extension is not installed or not started, check your php.ini
- */
- public function init($config)
- {
- if(!extension_loaded('apc'))
- throw new TConfigurationException('apccache_extension_required');
- $application=$this->getApplication();
- $this->_prefix=$application->getUniqueID();
- $application->setCache($this);
- $this->_initialized=true;
- }
-
- /**
- * Retrieves a value from cache with a specified key.
- * @return mixed the value stored in cache, false if the value is not in the cache or expired.
- */
- public function get($key)
- {
- if(($value=apc_fetch($this->_prefix.$key))!==false)
- return Prado::unserialize($value);
- else
- return $value;
- }
-
- /**
- * Stores a value identified by a key into cache.
- * If the cache already contains such a key, the existing value and
- * expiration time will be replaced with the new ones.
- *
- * @param string the key identifying the value to be cached
- * @param mixed the value to be cached
- * @param integer the expiration time of the value,
- * 0 means never expire,
- * @return boolean true if the value is successfully stored into cache, false otherwise
- */
- public function set($key,$value,$expiry=0)
- {
- return apc_store($this->_prefix.$key,Prado::serialize($value),$expiry);
- }
-
- /**
- * Stores a value identified by a key into cache if the cache does not contain this key.
- * APC does not support this mode. So calling this method will raise an exception.
- * @param string the key identifying the value to be cached
- * @param mixed the value to be cached
- * @param integer the expiration time of the value,
- * 0 means never expire,
- * @return boolean true if the value is successfully stored into cache, false otherwise
- * @throw new TNotSupportedException if this method is invoked
- */
- public function add($key,$value,$expiry=0)
- {
- throw new TNotSupportedException('apccache_add_unsupported');
- }
-
- /**
- * Stores a value identified by a key into cache only if the cache contains this key.
- * The existing value and expiration time will be overwritten with the new ones.
- * APC does not support this mode. So calling this method will raise an exception.
- * @param string the key identifying the value to be cached
- * @param mixed the value to be cached
- * @param integer the expiration time of the value,
- * 0 means never expire,
- * @return boolean true if the value is successfully stored into cache, false otherwise
- * @throw new TNotSupportedException if this method is invoked
- */
- public function replace($key,$value,$expiry=0)
- {
- throw new TNotSupportedException('apccache_replace_unsupported');
- }
-
- /**
- * Deletes a value with the specified key from cache
- * @param string the key of the value to be deleted
- * @return boolean if no error happens during deletion
- */
- public function delete($key)
- {
- return apc_delete($this->_prefix.$key);
- }
-
- /**
- * Deletes all values from cache.
- */
- public function flush()
- {
- return apc_clear_cache('user');
- }
-
-}
-
-?>
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