关联查询的的时候我现在是这样分页的：

        Pager pager = dao.createPager(param.getPage(), param.getRows());
        List<SendEmailRecord> records = dao.queryByJoin(SendEmailRecord.class, "sysUser", cnd, pager);
        pager.setRecordCount(dao.queryByJoin(SendEmailRecord.class, "sysUser", null).size());
        QueryResult result = new QueryResult(records, pager);

就想问问，有没有countByJoin(T.class,'regex',cnd)这种方法啊