The Java APIs also support searching on {HEAD ~ the result} of a previous search and {TAIL ~ searching} involving heterogeneous datastores 
The Java APIs also support searching on { HEAD ~ the result } of a previous search and { TAIL ~ searching } involving heterogeneous datastores
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH