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https://issues.apache.org/jira/browse/JENA-626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14289054#comment-14289054
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Claude Warren commented on JENA-626:
------------------------------------

The security layer needs the ability to disable caching for specific models.

If security is in play then caching needs to be by user. (though there are 
probably cases for by user group memebership and the like)  Perhaps what is 
needed is for the query engine to specify if the result may be cached.  Since 
the secure models have their own query engine implementation that query engine 
can specify if the query may be cached.

Query engines that are querying composit graphs may have some issues with this 
as some of the graphs may be secure.

Claude

> SPARQL Query Caching
> --------------------
>
>                 Key: JENA-626
>                 URL: https://issues.apache.org/jira/browse/JENA-626
>             Project: Apache Jena
>          Issue Type: Improvement
>            Reporter: Andy Seaborne
>              Labels: gsoc, java, linked_data, rdf, sparql
>
> Add a caching layer to Fuseki to cache the results of SPARQL Query requests.  
> This cache should allow for in-memory and disk-based caching, configuration 
> and cache management, and coordination with data modification.



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