public void setSortOrder(String sortOrder) {
        this.sortOrder = sortOrder;
    }
<p>
Specifies the order of sorted results. If you specify <code>SortOrder</code>, you must also specify
<code>SortBy</code>.
</p>

@param sortOrder
       Specifies the order of sorted results. If you specify <code>SortOrder</code>, you must also specify
       <code>SortBy</code>.
@see SortOrder
aws-java-sdk-acm/src/main/java/com/amazonaws/services/certificatemanager/model/ListCertificatesRequest.java