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From "Sam Tunnicliffe (JIRA)" <>
Subject [jira] Commented: (JENA-44) Support external sorting of bindings in ARQ
Date Tue, 15 Feb 2011 16:15:57 GMT


Sam Tunnicliffe commented on JENA-44:

I'll merge in the changes from JENA-29 now.

I'll update the incorrect license text too. Sorry, it appears that in moving it to the bottom
of the file, I seem to have pasted the wrong text in. The original source[1] *is* ASL licensed


> Support external sorting of bindings in ARQ
> -------------------------------------------
>                 Key: JENA-44
>                 URL:
>             Project: Jena
>          Issue Type: New Feature
>          Components: ARQ
>            Reporter: Sam Tunnicliffe
>            Priority: Minor
>         Attachments: JENA-44-0.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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