[jira] [Created] (FLINK-5222) Rename StateBackend interface to StateBinder

[Shang Yuanchun (Jira)]

MaGuowei created FLINK-5222:
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             Summary: Rename StateBackend interface to StateBinder
                 Key: FLINK-5222
                 URL: https://issues.apache.org/jira/browse/FLINK-5222
             Project: Flink
          Issue Type: Improvement
          Components: State Backends, Checkpointing
            Reporter: MaGuowei
            Assignee: MaGuowei
            Priority: Minor


The `StateBackend` interface  makes people confused sometime because it is not implemented by any state backend.
The main function of the interface is to create state from a state descriptor.
So giving another name to `StateBackend` may be more clear.



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