SPARQLStore customizable BNode handling #513
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The 4Store triple store understands <bnode:> URIs as pointing to blank nodes, which makes it possible to query and update them using its SPARQL endpoint.
…ocalName methods also prepared configurable node_from_result arg.
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| def _node_to_sparql(node): | ||
| if isinstance(node, BNode): | ||
| raise Exception( | ||
| "SPARQLStore does not support BNodes! " |
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Maybe this Exception should now say "SPARQLStore does not support BNodes by default! See ..."
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i thought so too, but as this currently raises an overly broad exception, the only thing people can do is rely on its message to actually handle it. That's why I decided against it for now and didn't change the message.
i made an issue to change all raise Exception to something more appropriate in 5.0.0 (see #515)
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This has been quite some work it seems. Except for the nitpick in my previous comment, this looks good to me. |
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eh, it's mostly moves, deprecations and cleanups... thanks for reviewing, i'll merge this soon if no one objects |
SPARQLStore customizable BNode handling, deprecations and cleanups
* sparql_store_bnode: test changed to use _node_from_result instead of CastToTerm
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@ssssam you can try by installing rdflib like this: |
initBindings, contexts, addN, remove, add_graph and remove_graph now call the node_to_sparql customizable function. Some support for BNode graph names added. Add-on for RDFLib#513, see also RDFLib#511, RDFLib#512
query (initBindings), contexts, addN, remove, add_graph and remove_graph now call node_to_sparql. Some support for BNode graph names added. Add-on for RDFLib#513, see also RDFLib#511, RDFLib#512
query (initBindings), contexts, addN, remove, add_graph and remove_graph now call node_to_sparql. Some support for BNode graph names added. Add-on for RDFLib#513, see also RDFLib#511, RDFLib#512
this implements the discussion in #512
CastToTerm,TraverseSPARQLResultDOMandlocalNamemethodsSPARQLStore(..., bNodeAsURI)argumentSPARQLStore(..., node_to_sparql, node_from_result)args to customize node transformationsBNodesplease check