class FileConnection implements ObjectStoreConnection {

    @Override
    public Set<String> getPendingMembershipApproverRoles(String server, long timestamp) {

        String[] fnames = getDomainList();
        Set<String> roleNames = new HashSet<>();
        for (String name : fnames) {
            getPendingMembershipApproverRolesForDomain(name, roleNames);
        }
        return roleNames;
    }

    public  FileConnection(File rootDir, File quotaDir);

}