'Get the Metadata for a SimpleDB domain.
:type domain_or_name: string or :class:`boto.sdb.domain.Domain` object.
:param domain_or_name: Either the name of a domain or a Domain object
:rtype: :class:`boto.sdb.domain.DomainMetaData` object
:return: The newly created domain metadata object'

def domain_metadata(self, domain_or_name):

    (domain, domain_name) = self.get_domain_and_name(domain_or_name)
    params = {'DomainName': domain_name}
    d = self.get_object('DomainMetadata', params, DomainMetaData)
    d.domain = domain
    return d
