public void setFirewallId(String firewallId) {
        this.firewallId = firewallId;
    }
<p>
The unique identifier for the firewall.
</p>

@param firewallId
       The unique identifier for the firewall.
aws-java-sdk-networkfirewall/src/main/java/com/amazonaws/services/networkfirewall/model/Firewall.java