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Posted to dev@apex.apache.org by "David Yan (JIRA)" <ji...@apache.org> on 2017/07/30 06:34:00 UTC

[jira] [Created] (APEXMALHAR-2530) Refactor AbstractAppDataSnapshotServer so that subclasses don't need schemas

David Yan created APEXMALHAR-2530:
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             Summary: Refactor AbstractAppDataSnapshotServer so that subclasses don't need schemas
                 Key: APEXMALHAR-2530
                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2530
             Project: Apache Apex Malhar
          Issue Type: Improvement
          Components: AppData
            Reporter: David Yan
            Assignee: David Yan


Currently AbstractAppDataSnapshotServer requires the users of the operator to set up the schemas, query deserializer, result serializer, query processor, etc. A simple query processing operator should not need all that. Let's have a more abstract app data server that only requires an embeddable query input operator, which is necessary if the query needs to be processed immediately without delay, which can be significant if the DAG has significant latency.



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