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https://issues.apache.org/jira/browse/FLINK-6909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16483887#comment-16483887
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ASF GitHub Bot commented on FLINK-6909:
---------------------------------------
Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/6037#discussion_r189885082
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/io/CsvReader.java ---
@@ -316,14 +317,18 @@ public CsvReader ignoreInvalidLines(){
Preconditions.checkNotNull(pojoType, "The POJO type class must
not be null.");
Preconditions.checkNotNull(pojoFields, "POJO fields must be
specified (not null) if output type is a POJO.");
- @SuppressWarnings("unchecked")
- PojoTypeInfo<T> typeInfo = (PojoTypeInfo<T>)
TypeExtractor.createTypeInfo(pojoType);
+ final TypeInformation<T> ti =
TypeExtractor.createTypeInfo(pojoType);
+ if (!(ti instanceof PojoTypeInfo)) {
+ throw new IllegalArgumentException(
+ "The specified class is not a POJO. The type
class must meet the POJO requirements. Found: " + ti);
--- End diff --
Yes, somewhere hidden in the documentation. I will fix this shortcoming as
part of FLINK-8293 for 1.6.
> Flink should support Lombok POJO
> --------------------------------
>
> Key: FLINK-6909
> URL: https://issues.apache.org/jira/browse/FLINK-6909
> Project: Flink
> Issue Type: Wish
> Components: Type Serialization System
> Reporter: Md Kamaruzzaman
> Assignee: Timo Walther
> Priority: Minor
>
> Project lombok helps greatly to reduce boilerplate Java Code.
> It seems that Flink does not accept a lombok POJO as a valid pojo.
> e.g. Here is a POJO defined with lombok:
> @Getter
> @Setter
> @NoArgsConstructor
> public class SimplePojo
> Using this Pojo class to read from CSV file throws this exception:
> Exception in thread "main" java.lang.ClassCastException:
> org.apache.flink.api.java.typeutils.GenericTypeInfo cannot be cast to
> org.apache.flink.api.java.typeutils.PojoTypeInfo
> It would be great if flink supports lombok POJO.
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