Struct TripleWriter

pub struct TripleWriter<W: Write> { /* private fields */ }

Allows writing triples. Could be built using a GraphSerializer.

Do not forget to run the finish method to properly write the last bytes of the file.

use oxigraph::io::{GraphFormat, GraphSerializer};
use oxigraph::model::*;

let mut buffer = Vec::new();
let mut serializer =
    GraphSerializer::from_format(GraphFormat::NTriples).triple_writer(&mut buffer);
serializer.write(&Triple {
    subject: NamedNode::new("http://example.com/s")?.into(),
    predicate: NamedNode::new("http://example.com/p")?,
    object: NamedNode::new("http://example.com/o")?.into(),
})?;
serializer.finish()?;

assert_eq!(
    buffer.as_slice(),
    "<http://example.com/s> <http://example.com/p> <http://example.com/o> .\n".as_bytes()
);

Implementations

impl<W: Write> TripleWriter<W>

pub fn write<'a>(&mut self, triple: impl Into<TripleRef<'a>>) -> Result<()>

Writes a triple

pub fn finish(self) -> Result<()>

Writes the last bytes of the file