@Override
    public int hashCode() {
        return Objects.hash(
                indexGenerator,
                docType,
                serializationSchema,
                contentType,
                requestFactory,
                createKey);
    }
Sink function for converting upserts into Elasticsearch ActionRequests.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/elasticsearch-base/src/main/java/org/apache/inlong/sort/elasticsearch/table/ElasticsearchSinkFunctionBase.java