lithium\storage\session\adapter\Memory
Extends
lithium\core\Object
Simple memory session storage engine. Used for testing.
Source
class Memory extends \lithium\core\Object {
/**
* Holds the array that corresponds to session keys & values.
*
* @var array "Session" data.
*/
public $_session = [];
/**
* Obtain the session key.
*
* For this adapter, it is a UUID.
*
* @return string UUID.
*/
public static function key() {
return Text::uuid();
}
/**
* The memory adapter session is always "on".
*
* @return boolean True.
*/
public function isStarted() {
return true;
}
/**
* Checks if a value has been set in the session.
*
* @param string $key Key of the entry to be checked.
* @param array $options Options array. Not used for this adapter method.
* @return \Closure Function returning boolean `true` if the key exists, `false` otherwise.
*/
public function check($key, array $options = []) {
return function($params) {
return isset($this->_session[$params['key']]);
};
}
/**
* Read a value from the session.
*
* @param null|string $key Key of the entry to be read. If no key is passed, all
* current session data is returned.
* @param array $options Options array. Not used for this adapter method.
* @return \Closure Function returning data in the session if successful, `false` otherwise.
*/
public function read($key = null, array $options = []) {
return function($params) {
if (!$params['key']) {
return $this->_session;
}
return isset($this->_session[$params['key']]) ? $this->_session[$params['key']] : null;
};
}
/**
* Write a value to the session.
*
* @param string $key Key of the item to be stored.
* @param mixed $value The value to be stored.
* @param array $options Options array. Not used for this adapter method.
* @return \Closure Function returning boolean `true` on successful write, `false` otherwise.
*/
public function write($key, $value, array $options = []) {
return function($params) {
return (boolean) ($this->_session[$params['key']] = $params['value']);
};
}
/**
* Delete value from the session
*
* @param string $key The key to be deleted
* @param array $options Options array. Not used for this adapter method.
* @return \Closure Function returning boolean `true` on successful delete, `false` otherwise
*/
public function delete($key, array $options = []) {
return function($params) {
unset($this->_session[$params['key']]);
return !isset($this->_session[$params['key']]);
};
}
/**
* Clears all keys from the session.
*
* @param array $options Options array. Not used for this adapter method.
* @return \Closure Function that clears the session
*/
public function clear(array $options = []) {
return function($params) {
$this->_session = [];
};
}
/**
* This adapter is always enabled, as it has no external dependencies.
*
* @return boolean True
*/
public static function enabled() {
return true;
}
}