oxigraph::io::write

Struct QuadWriter

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pub struct QuadWriter<W: Write> { /* private fields */ }
Expand description

Allows writing triples. Could be built using a DatasetSerializer.

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

use oxigraph::io::{DatasetFormat, DatasetSerializer};
use oxigraph::model::*;

let mut buffer = Vec::new();
let mut serializer = DatasetSerializer::from_format(DatasetFormat::NQuads).quad_writer(&mut buffer);
serializer.write(&Quad {
   subject: NamedNode::new("http://example.com/s")?.into(),
   predicate: NamedNode::new("http://example.com/p")?,
   object: NamedNode::new("http://example.com/o")?.into(),
   graph_name: NamedNode::new("http://example.com/g")?.into(),
})?;
serializer.finish()?;

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

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impl<W: Write> QuadWriter<W>

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

Writes a quad

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

Writes the last bytes of the file

Auto Trait Implementations§

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impl<W> Freeze for QuadWriter<W>
where W: Freeze,

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impl<W> RefUnwindSafe for QuadWriter<W>
where W: RefUnwindSafe,

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impl<W> Send for QuadWriter<W>
where W: Send,

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impl<W> Sync for QuadWriter<W>
where W: Sync,

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impl<W> Unpin for QuadWriter<W>
where W: Unpin,

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impl<W> UnwindSafe for QuadWriter<W>
where W: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V