Gabor Gevay created FLINK-8649:
----------------------------------
Summary: Scala StreamExecutionEnvironment.createInput should pass
on the TypeInfo
Key: FLINK-8649
URL: https://issues.apache.org/jira/browse/FLINK-8649
Project: Flink
Issue Type: Bug
Components: Scala API
Affects Versions: 1.4.0
Reporter: Gabor Gevay
Assignee: Gabor Gevay
Fix For: 1.5.0
This is {{StreamExecutionEnvironment.createInput}} in the Scala API:
{code}
def createInput[T: TypeInformation](inputFormat: InputFormat[T, _]):
DataStream[T] =
asScalaStream(javaEnv.createInput(inputFormat))
{code}
It should pass on the implicitly got {{TypeInformation}} to Java like this:
{code}
def createInput[T: TypeInformation](inputFormat: InputFormat[T, _]):
DataStream[T] =
asScalaStream(javaEnv.createInput(inputFormat,
implicitly[TypeInformation[T]]))
{code}
The current situation creates a problem, for example, when we have generics in
the type like in the following code, where the Java API can't deduce the
{{TypeInformation}} on its own:
{code}
StreamExecutionEnvironment.getExecutionEnvironment.createInput[Tuple2[Integer,
Integer]](new ParallelIteratorInputFormat[Tuple2[Integer, Integer]](null))
{code}
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
