<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* The PluginObserver class is used alongside PluginManager to implement
* the Observer Design Pattern.
*
* @package PhpMyAdmin
*/
if (! defined('PHPMYADMIN')) {
exit;
}
/* Each PluginObserver instance contains a PluginManager instance */
require_once 'PluginManager.class.php';
/**
* This class implements the SplObserver interface
*
* @package PhpMyAdmin
* @link http://php.net/manual/en/class.splobserver.php
*/
abstract class PluginObserver implements SplObserver
{
/**
* PluginManager instance that contains a list with all the observer
* plugins that attach to it
*
* @var type PluginManager
*/
private $_pluginManager;
/**
* Constructor
*
* @param PluginManager $pluginManager The Plugin Manager instance
*/
public function __construct($pluginManager)
{
$this->_pluginManager = $pluginManager;
}
/**
* This method is called when any PluginManager to which the observer
* is attached calls PluginManager::notify()
*
* TODO Declare this function abstract, removing its body,
* as soon as we drop support for PHP 5.2.x.
* See bug #3538655.
*
* @param SplSubject $subject The PluginManager notifying the observer
* of an update.
*
* @return void
*/
public function update (SplSubject $subject)
{
throw new Exception(
'PluginObserver::update must be overridden in child classes.'
);
}
/* ~~~~~~~~~~~~~~~~~~~~ Getters and Setters ~~~~~~~~~~~~~~~~~~~~ */
/**
* Gets the PluginManager instance that contains the list with all the
* plugins that attached to it
*
* @return type PluginManager
*/
public function getPluginManager()
{
return $this->_pluginManager;
}
/**
* Setter for $_pluginManager
*
* @param PluginManager $_pluginManager the private instance that it will
* attach to
*
* @return void
*/
public function setPluginManager($_pluginManager)
{
$this->_pluginManager = $_pluginManager;
}
}
?>
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