The disclosed embodiments are directed to long transaction locking of {HEAD ~ feature instances} in {TAIL ~ a web feature service} 
in
The disclosed embodiments are directed to long transaction locking of { HEAD ~ feature instances } in { TAIL ~ a web feature service }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL