framework/main/classes/factories/database/class_DatabaseFrontendFactory.php

   1 <?php
   2 // Own namespace
   3 namespace Org\Mxchange\CoreFramework\Factory\Database\Frontend;
   4
   5 // Import framework stuff
   6 use Org\Mxchange\CoreFramework\Factory\BaseFactory;
   7 use Org\Mxchange\CoreFramework\Factory\Object\ObjectFactory;
   8 use Org\Mxchange\CoreFramework\Registry\Object\ObjectRegistry;
   9
  10 /**
  11  * A factory class for socket registries
  12  *
  13  * @author              Roland Haeder <webmaster@shipsimu.org>
  14  * @version             0.0.0
  15  * @copyright   Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2023 Core Developer Team
  16  * @license             GNU GPL 3.0 or any newer version
  17  * @link                http://www.shipsimu.org
  18  *
  19  * This program is free software: you can redistribute it and/or modify
  20  * it under the terms of the GNU General Public License as published by
  21  * the Free Software Foundation, either version 3 of the License, or
  22  * (at your option) any later version.
  23  *
  24  * This program is distributed in the hope that it will be useful,
  25  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  26  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27  * GNU General Public License for more details.
  28  *
  29  * You should have received a copy of the GNU General Public License
  30  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  31  */
  32 class DatabaseFrontendFactory extends BaseFactory {
  33         /**
  34          * Protected constructor
  35          *
  36          * @return      void
  37          */
  38         private function __construct () {
  39                 // Call parent constructor
  40                 parent::__construct(__CLASS__);
  41         }
  42
  43         /**
  44          * Returns a singleton socket registry instance. If an instance is found in
  45          * the registry it will be returned, else a new instance is created and
  46          * stored in the same registry entry.
  47          *
  48          * @return      $frontendInstance       A database frontend instance
  49          */
  50         public static final function createFrontendByConfiguredName (string $frontendName) {
  51                 // Get registry instance
  52                 $registryInstance = ObjectRegistry::getRegistry();
  53
  54                 // Do we have an instance in the registry?
  55                 if ($registryInstance->instanceExists($frontendName)) {
  56                         // Then use this instance
  57                         $frontendInstance = $registryInstance->getInstance($frontendName);
  58                 } else {
  59                         // Get the registry instance
  60                         $frontendInstance = ObjectFactory::createObjectByConfiguredName($frontendName);
  61
  62                         // Set the instance in registry for further use
  63                         $registryInstance->addInstance($frontendName, $frontendInstance);
  64                 }
  65
  66                 // Return the instance
  67                 return $frontendInstance;
  68         }
  69
  70 }