wuchong commented on a change in pull request #11466: [FLINK-15400][connectors
/ elasticsearch] elasticsearch table sink support dynamic index.
URL: https://github.com/apache/flink/pull/11466#discussion_r410033447
##########
File path:
flink-connectors/flink-connector-elasticsearch-base/src/main/java/org/apache/flink/streaming/connectors/elasticsearch/ElasticsearchSinkFunction.java
##########
@@ -69,4 +69,9 @@
* @param indexer request indexer that {@code ActionRequest} should be
added to
*/
void process(T element, RuntimeContext ctx, RequestIndexer indexer);
+
+ /**
+ * General-purpose open method.
+ */
+ default void open() {}
Review comment:
Move the `open` on top of `process`.
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