Trait NeighborSource 

pub trait NeighborSource {
    // Required method
    fn neighbors(
        &self,
        entity_id: i64,
        walk: &GraphWalk,
    ) -> Result<Vec<EdgeArrival>, AppError>;
}

Supplies the neighbours of an entity to the walk driver.

Required Methods

fn neighbors( &self, entity_id: i64, walk: &GraphWalk, ) -> Result<Vec<EdgeArrival>, AppError>

Returns the neighbours of entity_id honouring walk’s direction, weight floor and relation filter.

Errors

Propagates AppError::Database (exit 10) on SQLite query failures.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl NeighborSource for InMemoryNeighbors<'_>

impl NeighborSource for SqlNeighbors<'_>