| 1 | 2 | simandl | <?php |
| 2 | | | |
| 3 | | | namespace Phem\Core; |
| 4 | | | |
| 5 | | | abstract class Singleton extends Object |
| 6 | | | { |
| 7 | | | |
| 8 | | | protected static $instances; |
| 9 | | | |
| 10 | | | protected function __construct() |
| 11 | | | { |
| 12 | | | |
| 13 | | | } |
| 14 | | | |
| 15 | | | protected function __clone() |
| 16 | | | { |
| 17 | | | |
| 18 | | | } |
| 19 | | | |
| 20 | | | public function __wakeup() |
| 21 | | | { |
| 22 | | | throw new CoreException("Cannot unserialize singleton"); |
| 23 | | | } |
| 24 | | | |
| 25 | | | public static function getInstance() |
| 26 | | | { |
| 27 | | | $cls = get_called_class(); // late-static-bound class name |
| 28 | | | |
| 29 | | | if (!isset(static::$instances)) |
| 30 | | | { |
| 31 | | | static::$instances = new Collection(); |
| 32 | | | } |
| 33 | | | |
| 34 | | | if (!(static::$instances->containsKey($cls))) |
| 35 | | | { |
| 36 | | | self::$instances->put($cls,new static); |
| 37 | | | } |
| 38 | | | return self::$instances->get($cls); |
| 39 | | | } |
| 40 | | | |
| 41 | | | } |
