Trait PatternMatchingDatasetMut 

pub trait PatternMatchingDatasetMut: PatternMatchingDataset {
    type ExtractMatchingQuads<'a, 'p>: Iterator<Item = Quad<Self::Resource>>
       where Self: 'a,
             Self::Resource: 'p;

    // Required method
    fn extract_matching_quads<'p>(
        &mut self,
        pattern: impl Into<LinearQuadPattern<&'p Self::Resource>>,
    ) -> Self::ExtractMatchingQuads<'_, 'p>
       where Self::Resource: 'p;
}

Pattern-matching-capable mutable dataset.

Required Associated Types

type ExtractMatchingQuads<'a, 'p>: Iterator<Item = Quad<Self::Resource>> where Self: 'a, Self::Resource: 'p

Pattern-matching iterator.

Required Methods

fn extract_matching_quads<'p>( &mut self, pattern: impl Into<LinearQuadPattern<&'p Self::Resource>>, ) -> Self::ExtractMatchingQuads<'_, 'p>

where Self::Resource: 'p,

Returns an iterator over all the quads matching the given linear quad pattern.

Each matching quad returned by Iterator::next are removed from the dataset. Matching quads that are not iterated on are kept in the dataset, even when the iterator is dropped.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<G: PatternMatchingGraphMut> PatternMatchingDatasetMut for G

Any single-graph, pattern-matching-capable mutable graph is a pattern-matching mutable dataset, only ever extracting quads from the default graph.

type ExtractMatchingQuads<'a, 'p> = OptionIterator<TriplesIntoQuads<<G as PatternMatchingGraphMut>::ExtractMatchingTriples<'a, 'p>, <G as Graph>::Resource>> where Self: 'a, Self::Resource: 'p

impl<R: Clone + Ord> PatternMatchingDatasetMut for IndexedBTreeDataset<R>

type ExtractMatchingQuads<'a, 'p> = ExtractPatternMatching<'a, R> where Self: 'a, R: 'p