/**
* Constructor.
*
* @param string $dir Directory to load configs from
* @param EnvironmentInterface $env The environment object
* @param InstanceInterface $cache The cache instance
*/
public function __construct($dir, EnvironmentInterface $env, InstanceInterface $cache)
{
parent::__construct($dir, $env);
$this->_cache = $cache;
$this->_cacheKey = sprintf(self::CACHE_KEY_PATTERN, md5($this->_dir));
}
