I created an issue to make this a bit more user-friendly in the future.
https://issues.apache.org/jira/browse/FLINK-5714
Timo
Am 05/02/17 um 06:08 schrieb nsengupta:
Thanks, Till, for taking time to share your understanding.
-- N
On Sun, Feb 5, 2017 at 12:49 AM, Till Rohrmann [via Apache Flink User
Mailing List archive.] <[hidden email]
</user/SendEmail.jtp?type=node&node=11443&i=0>> wrote:
I think the problem is that there are actually two constructors
with the same signature. The one is defined with default arguments
and the other has the same signature as the one with default
arguments when you leave all default arguments out. I assume that
this confuses the Scala compiler and only works if you've
specified the right types or at least one of the parameters with a
default argument.
Cheers,
Till
On Fri, Feb 3, 2017 at 12:49 PM, nsengupta <[hidden email]
<http:///user/SendEmail.jtp?type=node&node=11441&i=0>> wrote:
Till,
Many thanks. Just to confirm that it is working fine at my
end, here's a
screenshot.
<http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/n11427/Selection_258.png
<http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/file/n11427/Selection_258.png>>
This is Flink 1.1.4 but Flink-1.2/Flink-1.3 shouldn't be any
problem.
It never struck me that lack of covariance in Scala Arrays was
the source of
the problem. Bravo!
BTW, I am just curious to know how the Testcases worked: just
to add to my
knowledge of Scala. We didn't pass any /typehint/ to the
compiler there!
Could you please put a hint of a line or two? TIA.
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