public String getProgressing() {
        return this.progressing;
    }
<p>
The Amazon Simple Notification Service (Amazon SNS) topic that you want to notify when Elastic Transcoder has
started to process the job.
</p>

@return The Amazon Simple Notification Service (Amazon SNS) topic that you want to notify when Elastic Transcoder
        has started to process the job.
aws-java-sdk-elastictranscoder/src/main/java/com/amazonaws/services/elastictranscoder/model/Notifications.java