Struct NodeMask 

pub struct NodeMask { /* private fields */ }

Query-scoped node visibility filter (ACL primitive).

When a NodeMask is passed to query_masked, only nodes whose dense id appears in visible will be returned by label scans, key lookups, and neighbor expansions. Edges where either endpoint is hidden are silently dropped from the result.

Unknown keys in from_keys are silently ignored (they resolve to no id). An empty mask hides every node.

Implementations

impl NodeMask

pub fn from_keys<'a, F: Fs>( db: &GraphDb<F>, keys: impl IntoIterator<Item = &'a str>, ) -> Self

Resolve string keys to dense ids and build a mask.

Keys that do not exist in the database are ignored.

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool