Symfony ACL Cache

# app/config/config.ymldoctrine_cache:    acl_cache:        id: 'doctrine_cache.providers.acl_apc_provider'    providers:        acl_apc_provider:            type: 'apc'

<!-- app/config/config.xml --><?xml version="1.0" encoding="UTF-8" ?><dic:container xmlns="http://doctrine-project.org/schemas/symfony-dic/cache"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:srv="http://symfony.com/schema/dic/services"    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd        http://doctrine-project.org/schemas/symfony-dic/cache http://doctrine-project.org/schemas/symfony-dic/cache/doctrine_cache-1.0.xsd"><srv:container>    <doctrine-cache>        <acl-cache id="doctrine_cache.providers.acl_apc_provider"/>        <provider name="acl_apc_provider" type="apc"/>    </doctrine-cache></srv:container>