[
https://issues.apache.org/jira/browse/FLINK-29534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17614016#comment-17614016
]
Chesnay Schepler commented on FLINK-29534:
------------------------------------------
> It also doesn't look like like there's a way to register
> org.apache.flink.api.common.typeutils.TypeSerializer globally on 3rd-party
> types
Yes, this was removed at some point.
> @TypeInfo on field requires field type to be valid Pojo
> --------------------------------------------------------
>
> Key: FLINK-29534
> URL: https://issues.apache.org/jira/browse/FLINK-29534
> Project: Flink
> Issue Type: Bug
> Components: API / Type Serialization System
> Affects Versions: 1.14.0, 1.15.0
> Reporter: Exidex
> Priority: Major
>
> The ability to place @TypeInfo on field was added in
> [https://github.com/apache/flink/pull/8344] . But it seams like the fact that
> it requires field to be a valid POJO was overlooked. In my case I was trying
> to add custom serializer for Jackson's ObjectNode (wrapped in List but not
> sure if this is relevant https://issues.apache.org/jira/browse/FLINK-26470)
> which is not a valid POJO, and this requirement seams to defeat the whole
> purpose of such feature. It also doesn't look like like there's a way to
> register {{org.apache.flink.api.common.typeutils.TypeSerializer}} globally on
> 3rd-party types
> code snippet from TypeExtractor:
> {code:java}
> Type fieldType = field.getGenericType();
> if (!isValidPojoField(field, clazz, typeHierarchy) && clazz != Row.class) {
> LOG.info(
> "Class "
> + clazz
> + " cannot be used as a POJO type because not all fields
> are valid POJO fields, "
> + "and must be processed as GenericType. {}",
> GENERIC_TYPE_DOC_HINT);
> return null;
> }
> try {
> final TypeInformation<?> typeInfo;
> List<Type> fieldTypeHierarchy = new ArrayList<>(typeHierarchy);
> TypeInfoFactory factory = getTypeInfoFactory(field);
> if (factory != null) {{code}
>
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
