public Integer getInterval() {
        return this.interval;
    }
<p>
Specifies the period of time to retain snapshots in the archive tier. After this period expires, the snapshot is
permanently deleted.
</p>

@return Specifies the period of time to retain snapshots in the archive tier. After this period expires, the
        snapshot is permanently deleted.
aws-java-sdk-dlm/src/main/java/com/amazonaws/services/dlm/model/RetentionArchiveTier.java