public void setCompletionWindowMinutes(Long completionWindowMinutes) {
        this.completionWindowMinutes = completionWindowMinutes;
    }
<p>
A value in minutes after a backup job is successfully started before it must be completed or it will be canceled
by Backup. This value is optional.
</p>

@param completionWindowMinutes
       A value in minutes after a backup job is successfully started before it must be completed or it will be
       canceled by Backup. This value is optional.
aws-java-sdk-backup/src/main/java/com/amazonaws/services/backup/model/BackupRuleInput.java