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Posted to dev@storm.apache.org by "James Xu (JIRA)" <ji...@apache.org> on 2013/12/14 10:27:06 UTC

[jira] [Created] (STORM-94) Extend QueryFunction API to support paging based queries

James Xu created STORM-94:
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             Summary: Extend QueryFunction API to support paging based queries
                 Key: STORM-94
                 URL: https://issues.apache.org/jira/browse/STORM-94
             Project: Apache Storm (Incubating)
          Issue Type: Improvement
            Reporter: James Xu
            Priority: Minor


https://github.com/nathanmarz/storm/issues/553

Suppose some state holder supports paging or some sort of bulk iteration of its query results. In the current solution the QueryFunction must get all of the results for the input tuples before pushing the results further in the topology. It would be preferable to use some sort of PagedQueryFunction API which will push the pages further into the topology as they are fetched, page by page.



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