[jira] [Resolved] (JENA-727) Check ResultSets are still valid ; add QueryExecution.isClosed

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

     [ https://issues.apache.org/jira/browse/JENA-727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne resolved JENA-727.
--------------------------------

       Resolution: Fixed
    Fix Version/s: Jena 2.12.0

ResultSetsCheckCondition now wraps the result of calling QueryExecution.execSelect (two case - local and HTTP).

> Check ResultSets are still valid ;  add QueryExecution.isClosed
> ---------------------------------------------------------------
>
>                 Key: JENA-727
>                 URL: https://issues.apache.org/jira/browse/JENA-727
>             Project: Apache Jena
>          Issue Type: Improvement
>          Components: ARQ
>            Reporter: Andy Seaborne
>            Assignee: Andy Seaborne
>             Fix For: Jena 2.12.0
>
>
> One issue that we get in the users list is result set being used after the associated query execution has been closed. This may become more significant when/if {{QueryExecution}} becomes {{AutoCloseable}}.
> To support a ResultSet implementation that checks whether the {{QueryExecution}} is still current, add e.g. {{QueryExecution.isClosed}} to test for the state of the {{QueryExecution}}.



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