Anonymitaet commented on a change in pull request #12496:
URL: https://github.com/apache/pulsar/pull/12496#discussion_r738897586
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File path: site2/docs/schema-understand.md
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@@ -410,6 +410,24 @@ You can define the `schemaDefinition` to generate a
`struct` schema.
User user = consumer.receive().getValue();
```
+4. Use a custom `Serialization` method, such as json configuration method, the
following is the default
+
+ ```java
+ ObjectMapper mapper = new ObjectMapper();
+ mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
+ mapper.disable(SerializationFeature.FAIL_ON_EMPTY_BEANS);
+ mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+ JacksonJsonWriter<User> writer = new JacksonJsonWriter<>(mapper);
+ JacksonJsonReader<User> reader = new JacksonJsonReader<>(mapper,
User.class);
+
+ SchemaDefinition<User> schemaDefinition = SchemaDefinition.<User>builder()
+ .withPojo(User.class)
+
.withSchemaWriter(writer)
+
.withSchemaReader(reader)
+ .build();
+ ```
+ You can define `SchemaWriter` and `SchemaReader` as singletons
Review comment:
@congbobo184 can you help review it from the technical perspective?
Thanks
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