Struct ViewMaterializer 

pub struct ViewMaterializer { /* private fields */ }

Caches and manages materialized views by name.

Each view is associated with an optional predicate dependency list. When a triple with a tracked predicate changes, the affected views are marked stale and must be re-materialized.

Implementations

impl ViewMaterializer

pub fn new() -> Self

pub fn register_graph_view(&mut self, view: GraphView, predicates: Vec<String>)

Register a GraphView under its name.

pub fn get_graph_view(&self, name: &str) -> Option<&GraphView>

Retrieve a registered graph view by name.

pub fn mark_stale_for_predicates( &mut self, changed_predicates: &[String], ) -> Vec<String>

Mark all views that depend on any of the given predicates as stale.

pub fn refresh_view(&mut self, name: &str, fresh_triples: Vec<RdfTriple>)

Re-materialize a stale view with fresh triple data.

pub fn is_stale(&self, name: &str) -> bool

Whether name is currently marked stale.

pub fn stale_views(&self) -> Vec<&str>

All stale view names.

Trait Implementations

impl Debug for ViewMaterializer

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

Formats the value using the given formatter.

impl Default for ViewMaterializer

fn default() -> ViewMaterializer

Returns the “default value” for a type.