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<?php |
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/** |
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* Global registry for WCPOS. |
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* |
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* - stores instances of classes that may be required to remove_action or remove_filter. |
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* |
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* @author Paul Kilmurray <paul@kilbot.com> |
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* |
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* @see https://wcpos.com |
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* @package WCPOS\WooCommercePOS |
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*/ |
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|
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namespace WCPOS\WooCommercePOS; |
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|
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/** |
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* Registry class. |
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*/ |
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class Registry { |
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/** |
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* Singleton instance. |
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* |
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* @var Registry |
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*/ |
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private static $instance = null; |
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|
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/** |
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* Storage for the registry. |
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* |
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* @var array |
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*/ |
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private $storage = array(); |
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|
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/** |
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* Gets the singleton instance of the registry. |
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*/ |
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public static function get_instance() { |
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if ( null === self::$instance ) { |
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self::$instance = new self(); |
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} |
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|
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return self::$instance; |
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} |
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|
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/** |
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* Registers a new instance. |
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* |
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* @param string $key The registry key. |
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* @param object $object The object to store. |
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*/ |
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public function set( $key, $object ): void { |
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$this->storage[ $key ] = $object; |
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} |
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|
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/** |
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* Retrieves an instance by key. |
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* |
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* @param string $key The registry key. |
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*/ |
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public function get( $key ) { |
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return $this->storage[ $key ] ?? null; |
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} |
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} |
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|
