public void persist(long firewallRuleId, List<String> sourceCidrs) {
Transaction txn = Transaction.currentTxn();
txn.start();
for (String tag : sourceCidrs) {
FirewallRulesCidrsVO vo = new FirewallRulesCidrsVO(firewallRuleId, tag);
persist(vo);
}
txn.commit();
}