<?php
abstract class Storage_Connection implements Storage_ConnectionInterface{

    protected $config =array();

    function __construct(array $config=array())
    {
        $this->config = array_merge($this->config, $config);
    }

    public static function factory($name, $config=array()){
        $connection = 'Storage_Connection_'.ucfirst($name);
        return new $connection($config);
    }
}