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Posted to issues@flink.apache.org by "Yangze Guo (JIRA)" <ji...@apache.org> on 2018/11/26 12:24:00 UTC
[jira] [Created] (FLINK-11003) Document of Java Lambda Expressions
has a mistake
Yangze Guo created FLINK-11003:
----------------------------------
Summary: Document of Java Lambda Expressions has a mistake
Key: FLINK-11003
URL: https://issues.apache.org/jira/browse/FLINK-11003
Project: Flink
Issue Type: Bug
Components: Documentation
Reporter: Yangze Guo
Documentation of [*Java Lambda Expressions*|https://ci.apache.org/projects/flink/flink-docs-master/dev/java_lambdas.html] which may cause confusion.
In the last code block, it presents some way to solve type missing problem.
In 15 line:
public static class MyTuple2Mapper extends MapFunction<Integer, Integer> {
@Override
public Tuple2<Integer, Integer> map(Integer i) {
return Tuple2.of(i, i);
}
}
The second generic type in MapFunction should be Tuple2<Integer, Integer>
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