public OrderByElement withSortOrder(OrderString sortOrder) {
        this.sortOrder = sortOrder.toString();
        return this;
    }
<p>
Ordering direction.
</p>

@param sortOrder
       Ordering direction.
@return Returns a reference to this object so that method calls can be chained together.
@see OrderString
aws-java-sdk-discovery/src/main/java/com/amazonaws/services/applicationdiscovery/model/OrderByElement.java