public String getTopicArn() {
        return this.topicArn;
    }
<p>
The Amazon Resource Name (ARN) for the topic used by the source cluster for publishing notifications.
</p>

@return The Amazon Resource Name (ARN) for the topic used by the source cluster for publishing notifications.
aws-java-sdk-elasticache/src/main/java/com/amazonaws/services/elasticache/model/Snapshot.java