tRichFunction</span></li><li class="in" name="org.apache.flink.api.common.functions.RichFunction"><span>RichFunction</span></li><li class="in" name="org.apache.flink.api.common.functions.Function"><span>Function</span></li><li class="in" name="java.io.Serializable"><span>Serializable</span></li><li class="in" name="scala.AnyRef"><span>AnyRef</span></li><li class="in" name="scala.Any"><span>Any</span></li>
                  </ol>
                </div><div class="ancestors">
              <span class="filter