@java.lang.Override
  public java.lang.String getOrderBy() {
    java.lang.Object ref = orderBy_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      orderBy_ = s;
      return s;
    }
  }
<pre>
Optional. the order by fields for the result.
</pre>

<code>string order_by = 5 [(.google.api.field_behavior) = OPTIONAL];</code>

@return The orderBy.
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/ListCutoverJobsRequest.java