Hi,
I've run up against a compilation error involving a case class with a
private constructor:
[error]
/Users/anwhitaker/code/flink-fold-issue/src/main/scala/TestApp.scala:18:
could not find implicit value for evidence parameter of type
org.apache.flink.api.common.typeinfo.TypeInformation[List[scala.util.Try[TestApp.Wrapper]]]
[error] .fold(List[Try[Wrapper]](), new FoldFunction[Tuple2[Int,
Int], List[Try[Wrapper]]] {
[error] ^
[error] one error found
[error] (compile:compileIncremental) Compilation failed
If I make the constructor public again, the error goes away. I've set up a
simple example that demonstrates the problem here:
https://github.com/AndrewWhitaker/flink-case-class-private-ctor
I've read this article on Flink's website:
https://flink.apache.org/faq.html#why-am-i-getting-a-nonserializableexception-
but I think my issue is slightly different.
I'm just trying to understand this behavior and if there's a way I can work
around it.
Thanks!
--
Andrew Whitaker | [email protected]
