Struct FilterTripleSource

pub struct FilterTripleSource<S, P> { /* private fields */ }

The result type of TripleSource::filter_triples.

Trait Implementations

impl<S, P> TripleSource for FilterTripleSource<S, P>

where S: TripleSource, P: FnMut(&S::Triple<'_>) -> bool,

type Triple<'x> = <S as TripleSource>::Triple<'x>

The type of triples this source yields.

type Error = <S as TripleSource>::Error

The type of errors produced by this source.

fn try_for_some_triple<E, F>( &mut self, f: F, ) -> StreamResult<bool, Self::Error, E>

where E: Error, F: FnMut(Self::Triple<'_>) -> Result<(), E>,

Call f for some triple(s) (possibly zero) from this source, if any.

fn size_hint_triples(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the source.

fn try_for_each_triple<F, E>( &mut self, f: F, ) -> StreamResult<(), Self::Error, E>

where F: FnMut(Self::Triple<'_>) -> Result<(), E>, E: Error,

Call f for all triples from this source.

fn for_some_triple<F>(&mut self, f: &mut F) -> Result<bool, Self::Error>

where F: FnMut(Self::Triple<'_>),

Call f for some triple(s) (possibly zero) from this source, if any.

fn for_each_triple<F>(&mut self, f: F) -> Result<(), Self::Error>

where F: FnMut(Self::Triple<'_>),

Call f for all triples from this source.

fn filter_triples<F>(self, predicate: F) -> FilterTripleSource<Self, F>

where Self: Sized, F: FnMut(&Self::Triple<'_>) -> bool,

Returns a source which uses predicate to determine if an triple should be yielded.

fn filter_map_triples<F, T>( self, filter_map: F, ) -> FilterMapTripleSource<Self, F>

where Self: Sized, F: FnMut(Self::Triple<'_>) -> Option<T>,

Returns a source that both filters and maps.

fn map_triples<F, T>(self, map: F) -> MapTripleSource<Self, F>

where Self: Sized, F: FnMut(Self::Triple<'_>) -> T,

Returns a source which yield the result of map for each triple.

fn to_quads(self) -> ToQuads<Self>

where Self: Sized,

Convert of triples in this source to quads (belonging to the default graph).

fn collect_triples<G>(self) -> StreamResult<G, Self::Error, <G as Graph>::Error>

where Self: Sized, for<'x> Self::Triple<'x>: Triple, G: CollectibleGraph,

Collect these triples into a new graph.

fn add_to_graph<G: MutableGraph>( self, graph: &mut G, ) -> StreamResult<usize, Self::Error, <G as MutableGraph>::MutationError>

where Self: Sized, for<'x> Self::Triple<'x>: Triple,

Insert all triples from this source into the given MutableGraph.