Spring Security: Find Groups A User Belongs To?

How do I f开发者_运维百科ind groups a user belongs to? I can use GroupManager.findAllGroups() then loop the group with GroupManager.findUsersInGroup(java.lang.String groupName). However, this is expensive. Do we have any straight forward method?

Thanks.

---

After some research, there is no existing Spring Security API to do it, you may need to write the SQL yourself based on your database schema.