[jira] [Created] (FLINK-2723) CopyableValue method to copy into new instance

[Shang Yuanchun (Jira)]

Greg Hogan created FLINK-2723:
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             Summary: CopyableValue method to copy into new instance
                 Key: FLINK-2723
                 URL: https://issues.apache.org/jira/browse/FLINK-2723
             Project: Flink
          Issue Type: New Feature
          Components: Core
    Affects Versions: master
            Reporter: Greg Hogan
            Assignee: Greg Hogan
            Priority: Minor


Provide a method for generic user-defined functions to clone a {{CopyableValue}}. A common use case is a {{GroupReduceFunction}} that needs to store multiple objects. With object reuse we need to make a deep copy and with type erasure we cannot call new.



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