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Posted to issues@flink.apache.org by "Stephan Ewen (JIRA)" <ji...@apache.org> on 2015/12/07 23:10:11 UTC

[jira] [Created] (FLINK-3138) Method References are not supported as lambda expressions

Stephan Ewen created FLINK-3138:
-----------------------------------

             Summary: Method References are not supported as lambda expressions
                 Key: FLINK-3138
                 URL: https://issues.apache.org/jira/browse/FLINK-3138
             Project: Flink
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.10.2
            Reporter: Stephan Ewen
             Fix For: 1.0.0


For many functions (here for example KeySelectors), one can use lambda expressions:

{code}
DataStream<MyType> stream = ...;
stream.keyBy( v -> v.getId() )
{code}

Java's other syntax for this, Method References, do not work:

{code}
DataStream<MyType> stream = ...;
stream.keyBy( MyType::getId )
{code}



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