/**
  * Register interest with ALL_KEYS, and InterestPolicyResult = KEYS_VALUES which is equivalent to
  * a full GII.
  *
  * @param aRegion The region to register interest on.
  */
 protected static void registerInterest(Region aRegion) {
   Log.getLogWriter()
       .info("Calling registerInterest for all keys, result interest policy KEYS_VALUES");
   aRegion.registerInterest("ALL_KEYS", InterestResultPolicy.KEYS_VALUES);
   Log.getLogWriter()
       .info(
           "Done calling registerInterest for all keys, "
               + "result interest policy KEYS_VALUES, "
               + aRegion.getFullPath()
               + " size is "
               + aRegion.size());
 }