public String getStreamId() {
        return this.streamId;
    }
<p>
An optional stream identifier that MediaTailor uses to prefetch ads for multiple streams that use the same
playback configuration. If <code>StreamId</code> is specified, MediaTailor returns all of the prefetch schedules
with an exact match on <code>StreamId</code>. If not specified, MediaTailor returns all of the prefetch schedules
for the playback configuration, regardless of <code>StreamId</code>.
</p>

@return An optional stream identifier that MediaTailor uses to prefetch ads for multiple streams that use the
        same playback configuration. If <code>StreamId</code> is specified, MediaTailor returns all of the
        prefetch schedules with an exact match on <code>StreamId</code>. If not specified, MediaTailor returns
        all of the prefetch schedules for the playback configuration, regardless of <code>StreamId</code>.
aws-java-sdk-mediatailor/src/main/java/com/amazonaws/services/mediatailor/model/CreatePrefetchScheduleRequest.java