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https://issues.apache.org/jira/browse/FLINK-7206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16094620#comment-16094620
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ASF GitHub Bot commented on FLINK-7206:
---------------------------------------
Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/4355#discussion_r128499278
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/utils/UserDefinedFunctionUtils.scala
---
@@ -535,4 +654,21 @@ object UserDefinedFunctionUtils {
}
}
}
+
+ def getFieldTypeInfo(
+ clazz: Class[_],
+ obj: Object,
+ fieldName: String): Option[TypeInformation[_]] = {
+
+ val field = TypeExtractor.getDeclaredField(clazz, fieldName)
+ val typeInfo = if (field != null ) {
+ if (!field.isAccessible) {
+ field.setAccessible(true)
+ }
+ field.get(obj).asInstanceOf[TypeInformation[_]]
+ } else {
+ null
+ }
+ Some(typeInfo)
--- End diff --
Note that `Some(null)` is not `None`.
> Implementation of DataView to support state access for UDAGG
> ------------------------------------------------------------
>
> Key: FLINK-7206
> URL: https://issues.apache.org/jira/browse/FLINK-7206
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Kaibo Zhou
> Assignee: Kaibo Zhou
>
> Implementation of MapView and ListView to support state access for UDAGG.
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