class BaseCacheMgr(object):
    """No description has been set.
    """
    has_cull = False
    scheme = 'unknown'

    def __init__(self, cache, host, params):
        self.cache = cache
    def __iter__(self):
        raise NotImplementedError
    def info(self):
        default = (str(self.cache.default_timeout)
                   if hasattr(self.cache, 'default_timeout') else 'None')
        return [{'name': 'Scheme', 'value': self.scheme},
                {'name': 'Description', 'value': self.__doc__},
                {'name': 'Default Timeout', 'value': default},
                {'name': 'Has Cull', 'value': repr(self.has_cull)}]
    def clear(self):
        raise NotImplementedError
    def cull(self):
        if not self.has_cull: return
        raise NotImplementedError
    def delete(self, key):
        self.cache.delete(key)