How to integrate an RFID reader into an Android app?

I have an Android tablet, the Cottonwood Long Range UHF RFID reader and one of those flat white square RFID antennas. Here's a picture of everything:

rfid app hardware

Is the way those are wired up going to suffice for the Android app? What Java/Android APIs, modules, etc. can I use to tell the RFID reader to scan for nearby RFID tags and get the results?