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Posted to dev@jena.apache.org by "Paolo Castagna (JIRA)" <ji...@apache.org> on 2011/03/29 12:38:05 UTC
[jira] [Assigned] (JENA-44) Support external sorting of bindings in
ARQ
[ https://issues.apache.org/jira/browse/JENA-44?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paolo Castagna reassigned JENA-44:
----------------------------------
Assignee: Paolo Castagna
> Support external sorting of bindings in ARQ
> -------------------------------------------
>
> Key: JENA-44
> URL: https://issues.apache.org/jira/browse/JENA-44
> Project: Jena
> Issue Type: New Feature
> Components: ARQ
> Reporter: Sam Tunnicliffe
> Assignee: Paolo Castagna
> Priority: Minor
> Attachments: JENA-44-0.patch, JENA-44_ARQ_r8531.patch
>
>
> In QueryIterSort, the sorting of the contents of an Iterator<Binding> is done in memory, using Arrays.sort. This can be problematic where the set to be sorted is large. A possible solution could be to use an external, disk-backed algorithm. A hybrid approach may be better, whereby we attempt the in-memory sort, but when the number of bindings encountered goes over a certain number, resort to the disk-backed variant.
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