[GitHub] [pulsar] momo-jun commented on a diff in pull request #16816: [improve][doc] Add doc on Record as Function output type

[GitBox <gi...@apache.org>]

momo-jun commented on code in PR #16816:
URL: https://github.com/apache/pulsar/pull/16816#discussion_r933327519


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site2/docs/functions-develop-api.md:
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@@ -102,6 +102,39 @@ public class ExclamationFunction implements Function<String, String> {
 
 For more details, see [code example](https://github.com/apache/pulsar/blob/master/pulsar-functions/java-examples/src/main/java/org/apache/pulsar/functions/api/examples/ExclamationFunction.java).
 
+The return type of the `Function` can be wrapped in a Pulsar `Record` generic which gives more control on the output message (topic, schema, properties, ...)

Review Comment:
   ```suggestion
   The return type of the function can be wrapped in a `Record` generic which gives you more control over the output messages, such as topics, schemas, properties, and so on.
   ```



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