in flink-connector-opensearch/src/main/java/org/apache/flink/connector/opensearch/table/RowOpensearchEmitter.java [51:60]
public RowOpensearchEmitter(
IndexGenerator indexGenerator,
SerializationSchema<RowData> serializationSchema,
XContentType contentType,
Function<RowData, String> createKey) {
this.indexGenerator = checkNotNull(indexGenerator);
this.serializationSchema = checkNotNull(serializationSchema);
this.contentType = checkNotNull(contentType);
this.createKey = checkNotNull(createKey);
}