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https://issues.apache.org/jira/browse/JENA-236?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13398633#comment-13398633
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Rob Vesse commented on JENA-236:
--------------------------------
Having started at looking at this I'm not sure that my initial assessment is
the appropriate approach.
We actually materialize results immediately so it looks like all we need is
some error handling in Server.exec() to handle the case where attempting the
materialization fails
> Allow Service XML Parsing error to cancel the query on a per query basis
> ------------------------------------------------------------------------
>
> Key: JENA-236
> URL: https://issues.apache.org/jira/browse/JENA-236
> Project: Apache Jena
> Issue Type: Improvement
> Components: ARQ
> Affects Versions: ARQ 2.9.0
> Environment: All
> Reporter: Claude Warren
> Assignee: Rob Vesse
> Labels: features
> Attachments: JENA-236-1.txt
>
>
> Currently an XML parsing error may occur on a hasNext() call on a Sparql
> service query. The result is that the entire query (not just the service
> call) fails.
> The goal of this improvement is to capture the XML parsing error and return
> false for the hasNext(). The result being that data errors will be silently
> ignored. This should be done on a per endpoint basis. Perhaps as an
> onParseErrorCancel flag.
> I think there is an interplay of several flags in this request:
> 1) SILENT service parameter. If silent is true should this also be true by
> default? (I think not, but perhaps a system setting to make that the case)
> 2) cancelAllowDrain. If the error occurs should the cancel flag be raised?
> (I think not, but again perhaps a per service call flag to enable this)
> 3) JENA-93 discusses changing cancelAllowDrain to be a per endpoint setting.
> If that is the case it may apply here as well.
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