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Posted to dev@flink.apache.org by "Swapan Shaw (JIRA)" <ji...@apache.org> on 2018/08/30 16:14:00 UTC
[jira] [Created] (FLINK-10264) Exception is misleading when no
default constructor define for events
Swapan Shaw created FLINK-10264:
-----------------------------------
Summary: Exception is misleading when no default constructor define for events
Key: FLINK-10264
URL: https://issues.apache.org/jira/browse/FLINK-10264
Project: Flink
Issue Type: Bug
Components: DataStream API
Reporter: Swapan Shaw
When I have not declare the default constructor in the RequestEvent then I got the below exception which is misleading.
{code:java}
DataStream<RequestEvent> inputStream = env.addSource(...)
tEnv.registerDataStream(...);
{code}
{code:java}
Exception in thread "main" org.apache.flink.table.api.TableException: Only the first field can reference an atomic type.
at org.apache.flink.table.api.TableEnvironment$$anonfun$5.apply(TableEnvironment.scala:996)
at org.apache.flink.table.api.TableEnvironment$$anonfun$5.apply(TableEnvironment.scala:991)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
at scala.collection.TraversableLike$class.flatMap(TraversableLike.scala:241)
at scala.collection.mutable.ArrayOps$ofRef.flatMap(ArrayOps.scala:186)
at org.apache.flink.table.api.TableEnvironment.getFieldInfo(TableEnvironment.scala:991)
at org.apache.flink.table.api.StreamTableEnvironment.registerDataStreamInternal(StreamTableEnvironment.scala:546)
at org.apache.flink.table.api.java.StreamTableEnvironment.registerDataStream(StreamTableEnvironment.scala:133)}}{code}
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