public ClusteringKey withOrderBy(SortOrder orderBy) {
        this.orderBy = orderBy.toString();
        return this;
    }
<p>
Sets the ascendant (<code>ASC</code>) or descendant (<code>DESC</code>) order modifier.
</p>

@param orderBy
       Sets the ascendant (<code>ASC</code>) or descendant (<code>DESC</code>) order modifier.
@return Returns a reference to this object so that method calls can be chained together.
@see SortOrder
aws-java-sdk-keyspaces/src/main/java/com/amazonaws/services/keyspaces/model/ClusteringKey.java