source: sandbox/workflow/branches/609/lib/factory/WorkflowFactory.php @ 2233

<?php
/**************************************************************************\
* eGroupWare                                                               *
* http://www.egroupware.org                                                *
* --------------------------------------------                             *
*  This program is free software; you can redistribute it and/or modify it *
*  under the terms of the GNU General Public License as published by the   *
*  Free Software Foundation; either version 2 of the License, or (at your  *
*  option) any later version.                                              *
\**************************************************************************/

/**
 * Specialization of the BaseFactory class.
 * This class is used to instantiate classes by
 * the workflow module (not by processes). You
 * cannot access this class directly, but requests
 * to the Factory frontend class in 'unsecured mode'
 * will be forwarded to this class.
 *
 * @package Factory
 * @license http://www.gnu.org/copyleft/gpl.html GPL
 * @author Pedro Eugênio Rocha - pedro.eugenio.rocha@gmail.com
 */
final class WorkflowFactory extends BaseFactory {


        /**
         * @var boolean $_instantiated Attribute that stores whether this
         *              class was instantiated or not. This is used to limit the
         *              instantiation of this class.
         * @access private
         * @static
         */
        private static $_instantiated = false;


        /**
         * Construct the class. This function will inform which classes
         * you will be able to instantiate and where to find it.
         * This function implements a kind of singleton design pattern too.
         * @access public
         */
        public function __construct() {

                /* don't let the user to instantiate this class more than once. */
                if (self::$_instantiated)
                        throw new Exception("You can't instantiate this class again.");

                /* registering allowed classes */
                $this->registerFileInfo('WorkflowObjects', 'class.WorkflowObjects.inc.php', 'inc');
                $this->registerFileInfo('WorkflowWatcher', 'class.WorkflowWatcher.inc.php', 'inc');
                $this->registerFileInfo('WorkflowLDAP', 'class.WorkflowLDAP.inc.php', 'inc');
                $this->registerFileInfo('WorkflowSecurity', 'class.WorkflowSecurity.inc.php', 'inc');
                $this->registerFileInfo('ResourcesRedirector', 'class.ResourcesRedirector.inc.php', 'inc');
                $this->registerFileInfo('TemplateServer', 'class.TemplateServer.inc.php', 'inc');
                $this->registerFileInfo('CachedLDAP', 'class.CachedLDAP.inc.php', 'inc');
                $this->registerFileInfo('BrowserInfo', 'class.BrowserInfo.inc.php', 'inc');

                $this->registerFileInfo('workflow_smarty', 'class.workflow_smarty.inc.php', 'inc');
                $this->registerFileInfo('workflow_acl', 'class.workflow_acl.inc.php', 'inc');
                $this->registerFileInfo('workflow_processmanager', 'class.workflow_processmanager.inc.php', 'inc');

                $this->registerFileInfo('bo_participants', 'class.bo_participants.inc.php', 'inc');

                /* registering egw class example */
                $this->registerFileInfo('phpgw', 'class.phpgw.inc.php', '', EGW_INC_ROOT);
                $this->registerFileInfo('db', 'class.db.inc.php', '', EGW_INC_ROOT);
                $this->registerFileInfo('accounts', 'class.accounts.inc.php', '', EGW_INC_ROOT);

                /* ok. no more instances of this class.. */
                self::$_instantiated = true;
        }
}

?>