Struct sophia_api::triple::stream::FilterSource

pub struct FilterSource<S, F> {
    pub source: S,
    pub filter: F,
}

The result of TripleSource::filter_triples

Fields

source: S

filter: F

Trait Implementations

impl<S, F> TripleSource for FilterSource<S, F> where
    S: TripleSource,
    F: FnMut(&StreamedTriple<'_, S::Triple>) -> bool, 

type Error = S::Error

The type of errors produced by this source.

type Triple = S::Triple

Determine the type of Triples that this triple source yields. (see streaming_mode)

fn try_for_some_triple<G, E>(
    &mut self,
    f: &mut G
) -> StreamResult<bool, Self::Error, E> where
    G: FnMut(StreamedTriple<'_, Self::Triple>) -> Result<(), E>,
    E: Error, 

Call f for at least one triple from this triple source, if any.

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

Returns the bounds on the remaining length of the triple source.

fn try_for_each_triple<F, E>(
    &mut self,
    f: F
) -> StreamResult<(), Self::Error, E> where
    F: FnMut(StreamedTriple<'_, Self::Triple>) -> Result<(), E>,
    E: Error, 

Call f for all triples from this triple source.

fn for_some_triple<F>(&mut self, f: &mut F) -> Result<bool, Self::Error> where
    F: FnMut(StreamedTriple<'_, Self::Triple>), 

Call f for at least one triple from this triple source, if any.

fn for_each_triple<F>(&mut self, f: F) -> Result<(), Self::Error> where
    F: FnMut(StreamedTriple<'_, Self::Triple>), 

Call f for all triples from this triple source.

fn filter_triples<F>(self, filter: F) -> FilterSource<Self, F> where
    Self: Sized,
    F: FnMut(&StreamedTriple<'_, Self::Triple>) -> bool, 

Creates a triple source which uses a closure to determine if a triple should be yielded.

fn filter_map_triples<F, T>(self, filter_map: F) -> FilterMapSource<Self, F> where
    Self: Sized,
    F: FnMut(StreamedTriple<'_, Self::Triple>) -> Option<T>, 

Creates a triple source that both filters and maps.

fn map_triples<F, T>(self, map: F) -> MapSource<Self, F> where
    Self: Sized,
    F: FnMut(StreamedTriple<'_, Self::Triple>) -> T, 

Takes a closure and creates triple source which yield the result of that closure for each triple.

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

Insert all triples from this source into the given MutableGraph.