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Posted to dev@jena.apache.org by "Simon Helsen (JIRA)" <ji...@apache.org> on 2011/08/09 20:13:27 UTC
[jira] [Created] (JENA-93) Permit cancelAllowDrain on a per query
basis
Permit cancelAllowDrain on a per query basis
--------------------------------------------
Key: JENA-93
URL: https://issues.apache.org/jira/browse/JENA-93
Project: Jena
Issue Type: Improvement
Components: ARQ
Reporter: Simon Helsen
Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
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[jira] [Commented] (JENA-93) Permit cancelAllowDrain on a per query
basis
Posted by "Andy Seaborne (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13085612#comment-13085612 ]
Andy Seaborne commented on JENA-93:
-----------------------------------
Please provide a patch and test cases.
> Permit cancelAllowDrain on a per query basis
> --------------------------------------------
>
> Key: JENA-93
> URL: https://issues.apache.org/jira/browse/JENA-93
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Simon Helsen
>
> Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
> We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
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[jira] [Commented] (JENA-93) Permit cancelAllowDrain on a per query
basis
Posted by "Simon Helsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083140#comment-13083140 ]
Simon Helsen commented on JENA-93:
----------------------------------
I noticed that the static
public static boolean cancelAllowDrain = false ;
is deprecated. Why is that?
> Permit cancelAllowDrain on a per query basis
> --------------------------------------------
>
> Key: JENA-93
> URL: https://issues.apache.org/jira/browse/JENA-93
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Simon Helsen
>
> Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
> We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
--
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[jira] [Commented] (JENA-93) Permit cancelAllowDrain on a per query
basis
Posted by "Simon Helsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083148#comment-13083148 ]
Simon Helsen commented on JENA-93:
----------------------------------
I am concerned that our (IBM) use cases are not accepted by the Jena community. The javadoc in the code says things like "useful for debugging". We discussed at length why in some cases, a partial result set is quite legitimate.
> Permit cancelAllowDrain on a per query basis
> --------------------------------------------
>
> Key: JENA-93
> URL: https://issues.apache.org/jira/browse/JENA-93
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Simon Helsen
>
> Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
> We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
--
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[jira] [Commented] (JENA-93) Permit cancelAllowDrain on a per query
basis
Posted by "Simon Helsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13081807#comment-13081807 ]
Simon Helsen commented on JENA-93:
----------------------------------
I have no immediate patch for this, but Andy wrote at some point
"However, it would be easy to change the global to being a lookup
in the context and set a per-instance variable to control abort behavior."
> Permit cancelAllowDrain on a per query basis
> --------------------------------------------
>
> Key: JENA-93
> URL: https://issues.apache.org/jira/browse/JENA-93
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Simon Helsen
>
> Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
> We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
--
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[jira] [Commented] (JENA-93) Permit cancelAllowDrain on a per query
basis
Posted by "Andy Seaborne (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083142#comment-13083142 ]
Andy Seaborne commented on JENA-93:
-----------------------------------
It was deprecated when created so it was clear that it is provides specific behavious for one use case and is not generally to be used.
> Permit cancelAllowDrain on a per query basis
> --------------------------------------------
>
> Key: JENA-93
> URL: https://issues.apache.org/jira/browse/JENA-93
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Simon Helsen
>
> Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
> We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (JENA-93) Permit cancelAllowDrain on a per query
basis
Posted by "Simon Helsen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/JENA-93?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13083151#comment-13083151 ]
Simon Helsen commented on JENA-93:
----------------------------------
Also, I am currently testing the cancelAllowDrain behavior and it looks like it is not working properly. It keeps throwing a QueryCancelledException instead of draining the result set
> Permit cancelAllowDrain on a per query basis
> --------------------------------------------
>
> Key: JENA-93
> URL: https://issues.apache.org/jira/browse/JENA-93
> Project: Jena
> Issue Type: Improvement
> Components: ARQ
> Reporter: Simon Helsen
>
> Currently, there is a global static variable queryExecutionBase.cancelAllowDrain to permit partial results on cancelled queries.
> We would need this ability to be determinable on a per-query basis since we have to mix both use-cases on our back-end and a the same time.
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