GitHub user tillrohrmann opened a pull request:
https://github.com/apache/flink/pull/1840
[FLINK-3681] [cep, typeextractor] Generalize TypeExtractor to support more
lambdas
The TypeExtractor.getUnaryOperatorReturnType and
TypeExtractor.getBinaryOperatorReturnType
methods have been extended to support positional arguments for the input
types. This allows
to support parameterized types as Java 8 lambda arguments where the input
type is not specified
by the first type argument (e.g. Map<String, T>). This also solves the
problem that the CEP
library did not support Java 8 lambdas as select functions.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/tillrohrmann/flink fixCEPJava8
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1840.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1840
----
commit 4e626b79e290acb7a5fd546a985310aef17db8c2
Author: Till Rohrmann <[email protected]>
Date: 2016-03-30T12:55:27Z
[FLINK-3681] [cep, typeextractor] Generalize TypeExtractor to support more
lambdas
The TypeExtractor.getUnaryOperatorReturnType and
TypeExtractor.getBinaryOperatorReturnType
methods have been extended to support positional arguments for the input
types. This allows
to support parameterized types as Java 8 lambda arguments where the input
type is not specified
by the first type argument (e.g. Map<String, T>). This also solves the
problem that the CEP
library did not support Java 8 lambdas as select functions.
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