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