public function createChain($identifier, $config = array())
    {
        //Get the filter(s) we need to create
        $filters = (array) $identifier;
        $chain   = $this->getObject('lib:filter.chain');

        foreach($filters as $name)
        {
            $instance = $this->createFilter($name, $config);
            $chain->addFilter($instance);
        }

        return $chain;
    }