Question

更新现有ContactEntry以在现有ContactGroupEntry中包含GroupMembershipInfo的正确方法是什么？

我正在使用Java API com.google.gdata.data.contacts ...

// groupNameId was fetched with ContactGroupEntry.getId()
// entry is a known-good ContactEntry
// contactsService is a properly authenticated feed

GroupMembershipInfo g = new GroupMembershipInfo();
g.setHref(groupNameId);
entry.addGroupMembershipInfo(g); 
contactsService.update(new URL(entry.getEditLink().getHref()), entry);
// .... fails with PreconditionFailedException

我能够成功检索联系人并删除群组成员资格，但添加群组成员资格是我的目标，而我无法找到合适的Google搜索来查找有用的示例代码

Answer 1

GroupEntry被添加到GroupMembership，并添加到ContactEntry

<强> entry.getGroupMembershipInfos（）添加（G）;

GroupMembershipInfo g = new GroupMembershipInfo();
g.setHref(groupNameId);
entry.getGroupMembershipInfos().add(g);
contactsService.update(new URL(entry.getEditLink().getHref()), entry);