Sebastian Schelter created FLINK-1306:
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Summary: Scala API does not support standard sets
Key: FLINK-1306
URL: https://issues.apache.org/jira/browse/FLINK-1306
Project: Flink
Issue Type: Bug
Components: Scala API
Affects Versions: 0.7.0-incubating
Reporter: Sebastian Schelter
I'm trying to use the standard scala sets in Flinks Scala API, unfortunately
they don't seem to be supported...
What can I do to be able to use sets in my UDFs?
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Exception in thread "main"
org.apache.flink.api.common.functions.InvalidTypesException: Interfaces and
abstract classes are not valid types: interface scala.collection.immutable.Set
at
org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForClass(TypeExtractor.java:871)
at
org.apache.flink.api.java.typeutils.TypeExtractor.privateGetForClass(TypeExtractor.java:863)
at
org.apache.flink.api.java.typeutils.TypeExtractor.createTypeInfoWithTypeHierarchy(TypeExtractor.java:406)
at
org.apache.flink.api.java.typeutils.TypeExtractor.privateCreateTypeInfo(TypeExtractor.java:197)
at
org.apache.flink.api.java.typeutils.TypeExtractor.createTypeInfo(TypeExtractor.java:184)
at
io.ssc.trackthetrackers.analysis.preparation.ExtractTrackingGraph$$anon$3.<init>(ExtractTrackingGraph.scala:67)
at
io.ssc.trackthetrackers.analysis.preparation.ExtractTrackingGraph$.fromParsedPages(ExtractTrackingGraph.scala:67)
at
io.ssc.trackthetrackers.analysis.preparation.ExtractTrackingGraph$delayedInit$body.apply(ExtractTrackingGraph.scala:28)
at scala.Function0$class.apply$mcV$sp(Function0.scala:40)
at
scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12)
at scala.App$$anonfun$main$1.apply(App.scala:71)
at scala.App$$anonfun$main$1.apply(App.scala:71)
at scala.collection.immutable.List.foreach(List.scala:318)
at
scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:32)
at scala.App$class.main(App.scala:71)
at
io.ssc.trackthetrackers.analysis.preparation.ExtractTrackingGraph$.main(ExtractTrackingGraph.scala:26)
at
io.ssc.trackthetrackers.analysis.preparation.ExtractTrackingGraph.main(ExtractTrackingGraph.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
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