prepStmt.setLong (1, finderId);
prepStmt.setString (2, actId);
prepStmt.setString (3, resource.resourceKey());
rs = prepStmt.executeQuery();
if (rs.next()){
throw new AlreadyAssignedException ();
}
rs.close ();
rs = null;
prepStmt.close ();
prepStmt = con.prepareStatement