question: @ Override protected final List < LatLong > doInBackground ( final Object ... args ) { List < LatLong > points = new ArrayList < > ( ) ; DataHelper dbHelper = new DataHelper ( mContext ) ; final ArrayList < PositionRecord > positions = dbHelper . loadPositions ( ( Integer ) args [ SESSION_ID ] , ( Double ) args [ MIN_LAT_COL ] , ( Double ) args [ MAX_LAT_COL ] , ( Double ) args [ MIN_LON_COL ] , ( Double ) args [ MAX_LON_COL ] ) ; for ( PositionRecord position : positions ) { points . add ( new LatLong ( position . getLatitude ( ) , position . getLongitude ( ) ) ) ; } return points ; }
target:  Queries reference database for all wifis in specified range around map centre.