@Override
        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }
            DefaultRestClientFactory that = (DefaultRestClientFactory) o;
            return Objects.equals(pathPrefix, that.pathPrefix);
        }
Serializable {@link RestClientFactory} used by the sink.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/elasticsearch-6/src/main/java/org/apache/inlong/sort/elasticsearch6/table/Elasticsearch6DynamicSink.java