Struct VertexPropertyIndex 

pub struct VertexPropertyIndex { /* private fields */ }

Immutable equality index over selected vertex properties in one named graph.

Missing properties are not indexed, while an explicitly stored Value::Null remains queryable. Value equality follows Value’s total ordering, including its cross-numeric equality rules, so indexed lookup and relational equality agree.

Implementations

impl VertexPropertyIndex

pub fn build<G: GraphStore>( store: &G, graph: &str, properties: &[&str], ) -> GraphStoreResult<Self>

pub fn has_property(&self, property: &str) -> bool

pub fn lookup_eq( &self, property: &str, value: &Value, ) -> Option<&BTreeSet<VertexId>>

pub fn property_names(&self) -> impl Iterator<Item = &str>

Trait Implementations

impl Clone for VertexPropertyIndex

fn clone(&self) -> VertexPropertyIndex

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VertexPropertyIndex

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for VertexPropertyIndex

fn default() -> VertexPropertyIndex

Returns the “default value” for a type.