public Builder setOrderBy(java.lang.String value) {
      if (value == null) {
        throw new NullPointerException();
      }
      orderBy_ = value;
      bitField0_ |= 0x00000010;
      onChanged();
      return this;
    }
<pre>
Comma-separated list of fields that that specify the order of the results.
Default sorting order for a field is ascending. To specify descending order
for a field, append a " desc" suffix.
If not specified, the results will be returned in an unspecified order.
</pre>

<code>string order_by = 5;</code>

@param value The orderBy to set.
@return This builder for chaining.
java-workflows/proto-google-cloud-workflows-v1beta/src/main/java/com/google/cloud/workflows/v1beta/ListWorkflowsRequest.java