java - 在 gData hackstack 中找到 GroupContactEntry 针...？

Question

有没有更好的方法可以从您的 gData 联系人中获取特定的 Id，ContactGroupEntry而无需检索和遍历整个列表？

    // contactsService has been properly initialized...
    // hunting for the groupNameId corrisponding to the plaintext groupName

    final URL url = new URL("http://www.google.com/m8/feeds/groups/default/full");
    String groupNameId = null;
    ContactGroupFeed f = contactsService.getFeed(url, ContactGroupFeed.class);
    int totalResults = f.getTotalResults();
    List<ContactGroupEntry> list = f.getEntries();
    while (list.size() < totalResults) {
        Query q = new Query(url);
        q.setStartIndex(f.getStartIndex() + f.getItemsPerPage());
        q.setMaxResults(200);
        f = this.contactsService.query(q, ContactGroupFeed.class);
        list.addAll(f.getEntries());        
    }

    for(ContactGroupEntry g : list) {
        if (groupName.compareTo(g.getPlainTextContent()) == 0) {
            groupNameId = g.getId();
            break;
        }
    }
    // return groupNameId