Struct terminus_store::layer::GenericObjectLookup

pub struct GenericObjectLookup {
    pub object: u64,
    pub lookups: Vec<(Option<Box<dyn LayerObjectLookup>>, Option<Box<dyn LayerObjectLookup>>)>,
}

Fields

object: u64

lookups: Vec<(Option<Box<dyn LayerObjectLookup>>, Option<Box<dyn LayerObjectLookup>>)>

Trait Implementations

impl ObjectLookup for GenericObjectLookup

fn object(&self) -> u64

The object that this lookup is based on.

fn subject_predicate_pairs(&self) -> Box<dyn Iterator<Item = (u64, u64)>>

Returns an iterator over the subject-predicate pairs pointing at this object.

fn has_subject_predicate_pair(&self, subject: u64, predicate: u64) -> bool

Returns true if the object this lookup is for is connected to the given subject and predicater.

fn triple(&self, subject: u64, predicate: u64) -> Option<IdTriple>

Returns the triple consisting of the given subject and predicate, and the object this lookup is for, if it exists. None is returned otherwise.

fn triples(&self) -> Box<dyn Iterator<Item = IdTriple>>

Returns an iterator over all triples with the object of this lookup.