Removing all triples in a named graph from java

[Håvard Ottestad]

Hi,

I'm trying to remove alle the triples in a named graph from Java, but it seems to delete everything in stardog instead.

This is the code I'm using:

connection.remove().context(namedGraph).all();

I can't use SPARQL, because I need to add more data within the same transaction afterwards.

Essentially what I'm trying to do is an upload-and-replace for a named graph.

Cheers,

Håvard M. Ottestad

[Michael Grove]

On Wed, Jan 18, 2017 at 5:07 AM, Håvard Ottestad <hmott...@gmail.com> wrote:

Hi,

I'm trying to remove alle the triples in a named graph from Java, but it seems to delete everything in stardog instead.

This is the code I'm using:

connection.remove().context(namedGraph).all();

This removes both the context (via `context`) and the entire database (via `all`).

Cheers,

Mike

 

I can't use SPARQL, because I need to add more data within the same transaction afterwards.

Essentially what I'm trying to do is an upload-and-replace for a named graph.

Cheers,

Håvard M. Ottestad

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[Håvard Ottestad]

Thanks Mike, got it to work now.

Doesn't seem quite consistent with how the getter works.  

connection.get().context(namedGraph) doesn't actually get anything, but returns a getter that you can keep working on. So when the remover returns a remover object, it makes it feel like it's expecting more calls. 

Getter builds with what feels like chained filters, while the remover doesn't.

Cheers,

Håvard

[Michael Grove]

That's fair criticism. As I mentioned in the blog yesterday [1], we're revisiting the design of the SNARL API, so this is something I'll try to take into consideration as we iterate on it internally.

Cheers,

Mike

[1] http://blog.stardog.com/reactive-streaming-stardog-kernel/

 

Cheers,

Håvard