public void setSnsTopicArn(String snsTopicArn) {
        this.snsTopicArn = snsTopicArn;
    }
<p>
The Amazon Resource Name (ARN) of the SNS topic created for event notification. SNS automatically creates the ARN
when you create a topic and subscribe to it.
</p>
<note>
<p>
RDS doesn't support FIFO (first in, first out) topics. For more information, see <a
href="https://docs.aws.amazon.com/sns/latest/dg/sns-fifo-topics.html">Message ordering and deduplication (FIFO
topics)</a> in the <i>Amazon Simple Notification Service Developer Guide</i>.
</p>
</note>

@param snsTopicArn
       The Amazon Resource Name (ARN) of the SNS topic created for event notification. SNS automatically creates
       the ARN when you create a topic and subscribe to it.</p> <note>
       <p>
       RDS doesn't support FIFO (first in, first out) topics. For more information, see <a
       href="https://docs.aws.amazon.com/sns/latest/dg/sns-fifo-topics.html">Message ordering and deduplication
       (FIFO topics)</a> in the <i>Amazon Simple Notification Service Developer Guide</i>.
       </p>
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/CreateEventSubscriptionRequest.java