Aljoscha Krettek created FLINK-5740:
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Summary: Make WrappingFunction an interface and move to flink-core
Key: FLINK-5740
URL: https://issues.apache.org/jira/browse/FLINK-5740
Project: Flink
Issue Type: Improvement
Components: Core
Reporter: Aljoscha Krettek
Assignee: Aljoscha Krettek
Making it an interface and having an {{AbstractWrappingFunction}} will allow
implementations to have different classes as base classes. Also, we should
change {{FunctionUtils}} to work like {{StreamingFunctionUtils}} so that
wrapping functions don't have to implement the methods of {{RichFunction}}.
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