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AKSW / building-navigator

The Gebäude-Navigator helps you to find accessible places in Leipzig.
https://behindertenverband-leipzig.de/gebaeude-navigator
GNU General Public License v3.0
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use Virtuoso as databackend through rdfstore-js #15

Closed simeonackermann closed 7 years ago

simeonackermann commented 7 years ago

@k00ni rdfstore-js acts as a standalone store. Its not possible to use it with Virtuoso as backend. But its not a big thing to do ajax requests to the virtuoso sparql endpoint and still have rdfstore-js as alternative local store.

k00ni commented 7 years ago

@simeonackermann i think you can use the rdfstore-js to query any RDF source: files or SPARQL endpoints. Its not a store itself i think. As i remember it, @GeorgesAlkhouri once told me, that you can pass it a SPARQL endpoint and it will handle all the communication with it.

simeonackermann commented 7 years ago

I dont see any documented way to do this. It's only possible to load resources from remote uri. And cubevizjs uses either local rdfstore or remote store via Ajax requests.

Am 23. November 2016 14:24:46 MEZ, schrieb Konrad Abicht notifications@github.com:

@simeonackermann i think you can use the rdfstore-js to query any RDF source: files or SPARQL endpoints. Its not a store itself i think. As i remember it, @GeorgesAlkhouri once told me, that you can pass it a SPARQL endpoint and it will handle all the communication with it.

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GeorgesAlkhouri commented 7 years ago

@simeonackermann is right, cubeviz handles the queries to the store. Thats what I meant when I said that

you can pass it a SPARQL endpoint and it will handle all the communication

I meant cubeviz, not rdfstore-js

k00ni commented 7 years ago

Ok @GeorgesAlkhouri and @simeonackermann, please correct me, if i am wrong: my understanding of the rdfstore-js is, that you give him some SPARQL and it will fire it on a SPARQL endpoint. Furthermore, it will return the result back to you. So you dont have to care about any endpoint in particular, you just focusing on writing your SPARQL and compute returned results.

If you need to deal with Virtuoso by yourself, why bother using rdfstore-js after all?

simeonackermann commented 7 years ago

Rdfstore-js is a javascript implementation of an rdf-store with sparql endpoint. For cubevizjs its used to load uploaded data or a file into a local rdf store. I just used it because we didn't wanted an extra virtuoso server and its good and easy to use.

simeonackermann commented 7 years ago

But for our case: having a big dataset and don't need any write or change actions a remote server like Virtuoso is of cause the better solution.

simeonackermann commented 7 years ago

Done with b50ced97e6933ca816617f5e37e3b48f86558473

Requests are made as asynchronous ajax requests with https://github.com/github/fetch, but are specified to Virtuoso 7.x by now.