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ASF GitHub Bot commented on FLINK-5023: --------------------------------------- Github user shixiaogang commented on the issue: https://github.com/apache/flink/pull/2768 Oh... I added another field to make the code more clear, but I did not notice the serialization problem. Thanks very much for your reminder. Your solution does work though the concept of "defaultValue" in folding states is a little confusing. Another solution to let `FoldingStateDescriptor` implement its own serialization method. And I prefer this one. What do you think? @aljoscha > Add get() method in State interface > ----------------------------------- > > Key: FLINK-5023 > URL: https://issues.apache.org/jira/browse/FLINK-5023 > Project: Flink > Issue Type: Improvement > Components: State Backends, Checkpointing > Reporter: Xiaogang Shi > Assignee: Xiaogang Shi > > Currently, the only method provided by the State interface is `clear()`. I > think we should provide another method called `get()` to return the > structured value (e.g., value, list, or map) under the current key. > In fact, the functionality of `get()` has already been implemented in all > types of states: e.g., `value()` in ValueState and `get()` in ListState. The > modification to the interface can better abstract these states. -- This message was sent by Atlassian JIRA (v6.3.4#6332)