public void setRetrieval(PrefetchRetrieval retrieval) {
        this.retrieval = retrieval;
    }
<p>
A complex type that contains settings for prefetch retrieval from the ad decision server (ADS).
</p>

@param retrieval
       A complex type that contains settings for prefetch retrieval from the ad decision server (ADS).
aws-java-sdk-mediatailor/src/main/java/com/amazonaws/services/mediatailor/model/PrefetchSchedule.java