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https://issues.apache.org/jira/browse/FLINK-1378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stephan Ewen resolved FLINK-1378.
---------------------------------
Resolution: Fixed
Fix Version/s: 0.8
0.9
Fixed via 935e316a38367cab513dfe2b010129e5d47b7b68
> could not find implicit value for evidence parameter of type TypeInformation
> ----------------------------------------------------------------------------
>
> Key: FLINK-1378
> URL: https://issues.apache.org/jira/browse/FLINK-1378
> Project: Flink
> Issue Type: Bug
> Components: Scala API
> Affects Versions: 0.7.0-incubating
> Reporter: John Sandiford
> Assignee: Aljoscha Krettek
> Fix For: 0.9, 0.8
>
>
> This is an example of one of many cases that I cannot get to compile with the
> scala API. I have tried using T : TypeInformation and : ClassTag but still
> cannot get it to work.
> //libraryDependencies += "org.apache.flink" % "flink-scala" %
> "0.7.0-incubating"
> //
> //libraryDependencies += "org.apache.flink" % "flink-clients" %
> "0.7.0-incubating"
> import org.apache.flink.api.scala._
> import scala.util.{Success, Try}
> object Main extends App {
> val env = ExecutionEnvironment.getExecutionEnvironment
> val data: DataSet[Double] = env.fromElements(1.0, 2.0, 3.0, 4.0)
> def f[T](data: DataSet[T]): DataSet[(T, Try[Seq[Double]])] = {
> data.mapPartition((iterator: Iterator[T]) => {
> val first = iterator.next()
> val second = iterator.next()
> Iterator((first, Success(Seq(2.0, 3.0))), (second, Success(Seq(3.0,
> 1.0))))
> })
> }
> val g = f(data)
> g.print()
> env.execute("Flink Test")
> }
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