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<?php
/**
* Storage registry class
*
* @package Meta Box
*/
/**
* Class RWMB_Storage_Registry
*/
class RWMB_Storage_Registry {
/**
* List storage instances.
*
* @var array
*/
protected $storages = array();
/**
* Get storage instance.
*
* @param string $class_name Storage class name.
* @return RWMB_Storage_Interface
*/
public function get( $class_name ) {
if ( empty( $this->storages[ $class_name ] ) ) {
if ( ! class_exists( $class_name ) ) {
return null;
}
$this->storages[ $class_name ] = new $class_name();
}
return $this->storages[ $class_name ];
}
}
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