61 lines
1.2 KiB
PHP
61 lines
1.2 KiB
PHP
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<?php
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/**
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* @package Joomla.Legacy
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* @subpackage Base
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*
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* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
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* @license GNU General Public License version 2 or later; see LICENSE
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*/
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defined('JPATH_PLATFORM') or die;
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/**
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* Abstract observer class to implement the observer design pattern
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*
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* @package Joomla.Legacy
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* @subpackage Base
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* @since 11.1
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* @deprecated 12.3 (Platform) & 4.0 (CMS)
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* @codeCoverageIgnore
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*/
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abstract class JObserver extends JObject
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{
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/**
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* Event object to observe.
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*
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* @var object
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* @since 11.1
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* @deprecated 12.3
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*/
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protected $_subject = null;
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/**
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* Constructor
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*
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* @param object &$subject The object to observe.
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*
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* @since 11.1
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* @deprecated 12.3
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*/
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public function __construct(&$subject)
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{
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// Register the observer ($this) so we can be notified
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$subject->attach($this);
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// Set the subject to observe
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$this->_subject = &$subject;
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}
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/**
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* Method to update the state of observable objects
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*
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* @param array &$args An array of arguments to pass to the listener.
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*
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* @return mixed
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*
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* @since 11.1
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* @deprecated 12.3
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*/
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public abstract function update(&$args);
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}
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