public java.util.List<String> getDBSecurityGroups() {
        return dBSecurityGroups;
    }
<p>
A list of DB security groups to authorize on this DB instance. Changing this setting doesn't result in an outage
and the change is asynchronously applied as soon as possible.
</p>
<p>
Constraints:
</p>
<ul>
<li>
<p>
If supplied, must match existing DBSecurityGroups.
</p>
</li>
</ul>

@return A list of DB security groups to authorize on this DB instance. Changing this setting doesn't result in an
        outage and the change is asynchronously applied as soon as possible.</p>
        <p>
        Constraints:
        </p>
        <ul>
        <li>
        <p>
        If supplied, must match existing DBSecurityGroups.
        </p>
        </li>
aws-java-sdk-neptune/src/main/java/com/amazonaws/services/neptune/model/ModifyDBInstanceRequest.java