public void setRelationalDatabaseAvailabilityZones(java.util.Collection<AvailabilityZone> relationalDatabaseAvailabilityZones) {
        if (relationalDatabaseAvailabilityZones == null) {
            this.relationalDatabaseAvailabilityZones = null;
            return;
        }

        this.relationalDatabaseAvailabilityZones = new java.util.ArrayList<AvailabilityZone>(relationalDatabaseAvailabilityZones);
    }
<p>
The Availability Zones for databases. Follows the format <code>us-east-2a</code> (case-sensitive).
</p>

@param relationalDatabaseAvailabilityZones
       The Availability Zones for databases. Follows the format <code>us-east-2a</code> (case-sensitive).
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/Region.java