Sihua Zhou created FLINK-6980:
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Summary: TypeExtractor.getForObject can't get typeinfo correctly.
Key: FLINK-6980
URL: https://issues.apache.org/jira/browse/FLINK-6980
Project: Flink
Issue Type: Bug
Components: DataStream API
Affects Versions: 1.3.0
Reporter: Sihua Zhou
Priority: Minor
Here is my class define:
_class MyRecord extends Row implements Retracting, Value {}_
When i use it like below, it just throw type cast error:
java.lang.ClassCastException: org.apache.flink.types.Row cannot be cast to
org.apache.flink.types.Value
MyRecord[] recordList = new MyRecord[6];
DataStream<MyRecord> dataStream = env.fromElements(recordList);
//MyFilter 's input arg type is MyRecord.
dataStream.flatMap(new MyFilter()).returns(MyRecord.class).print();
I found this is becuase of the TypeExtractor.getForObject called in
env.fromElements() can't get the
element's type corrently and TypeExtractor.getForObject work corrently in flink
1.2.0.
I know this problem can be solved by use env.fromElement(MyRecord.class,
recordList) instead, i just want to know whether this is a bug or not? Why it
can be work correctly in 1.2.0 and can't in 1.3.0?
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