[jira] [Assigned] (JENA-1656) Make DatasetGraphMonitor transaction-aware

["Andy Seaborne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-1656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne reassigned JENA-1656:
-----------------------------------

    Assignee: Andy Seaborne

> Make DatasetGraphMonitor transaction-aware
> ------------------------------------------
>
>                 Key: JENA-1656
>                 URL: https://issues.apache.org/jira/browse/JENA-1656
>             Project: Apache Jena
>          Issue Type: Improvement
>          Components: ARQ
>    Affects Versions: Jena 3.10.0
>            Reporter: Pip Cet
>            Assignee: Andy Seaborne
>            Priority: Minor
>
> In order to implement continuously-updated query result streams, I used a DatasetGraphMonitor to monitor when the relevant part of the dataset graph changed in order to re-run the query. However, there was a race condition because DatasetGraphMonitor informs its monitor of uncommitted changes; the query would be repeated too soon, meaning the changes would be missed.
> Adding the commit() method to the DatasetChanges interface and using it seems to avoid this issue.



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