913aca9a_ent_repository___Henri_Bergius__CouchDB
[feature] access control [JCR / Jackrabbit] Done on repository level, i.e. all access control is independent of application. In Jackrabbit: pluggable authentication/authorization handlers. [Midgard] No access control in Midgard repository, usually implemented on application level. Midgard proves a user authentication API [CouchDB] 
No access control
What is a content repository - Henri Bergius
CouchDB