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From "Rob Vesse (Assigned) (JIRA)" <>
Subject [jira] [Assigned] (JENA-162) Add FROM/FROM NAMED support to Fuseki
Date Wed, 14 Mar 2012 16:12:43 GMT


Rob Vesse reassigned JENA-162:

    Assignee: Rob Vesse
> Add FROM/FROM NAMED support to Fuseki
> -------------------------------------
>                 Key: JENA-162
>                 URL:
>             Project: Apache Jena
>          Issue Type: New Feature
>          Components: Fuseki
>    Affects Versions: Fuseki 0.2.1
>            Reporter: Rob Vesse
>            Assignee: Rob Vesse
>              Labels: from, from-named, sparql
>         Attachments: FusekiFromSupport.patch
> Fuseki currently does not support FROM/FROM NAMED clauses returning a HTTP 400 error
if a user tries to make use of them
> The attached patch provides for optional enabling of this feature by a user specified
--from or --allowFrom switch when the server is started or programmtically via ARQ.getContext().set(Fuseki.enableFromClauses,
true).  Therefore unless a user turns this feature on by default the old behavior remains
in place.
> When enabled Fuseki will not reject queries with FROM/FROM NAMED in them and will use
DynamicDatasets.dynamicDataset() to build the dataset for queries, there is minimal overhead
for queries without FROM/FROM NAMED clauses as the code in DynamicDatasets appears to leave
the default dataset unchanged if no dataset description is present in the query AFAICT
> A small number of tests has been added to to test the behaviour, more
tests might be desirable and I can probably supply those if necessary but the ones given test
all the obvious combinations with the trivial test data used by TestQuery

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