Struct GraphView 

pub struct GraphView<'a> {
    pub ids: &'a IdMap,
    pub syms: &'a Interner,
    pub labels: &'a [u32],
    pub props: ColumnsView<'a>,
    pub topo: TopologyView<'a>,
    pub edge_props: EdgePropsView<'a>,
    pub mask: Option<&'a HashSet<u32>>,
}

Read-only twin of GraphMut. Holds only borrowed graph state.

Fields

ids: &'a IdMap

syms: &'a Interner

labels: &'a [u32]

props: ColumnsView<'a>

Overlay-over-base column store view. For V5–V7 snapshots and fresh databases, base is None and all column reads go to the overlay. For V8 snapshots, base holds the archived columns from the mmap.

topo: TopologyView<'a>

Overlay-over-base topology view. For V5–V7 snapshots and fresh databases, base is None and all topology reads go to the owned overlay. For V8 snapshots, base holds the archived CSR from the mmap, and WAL-replayed edges accumulate in the overlay.

edge_props: EdgePropsView<'a>

Overlay-over-base edge-property view. For V8 snapshots the base section is consulted zero-copy; the overlay holds only post-snapshot changes. Tombstones in the overlay mask deleted-from-base entries.

mask: Option<&'a HashSet<u32>>

Optional query-scoped node visibility set. None = all nodes visible. When Some(set), only dense ids present in set are accessible.

Implementations

impl<'a> GraphView<'a>

pub fn visible(&self, id: u32) -> bool

Returns true if id is visible under the current mask. Always true when no mask is set.

pub fn node_id(&self, key: &str) -> Option<u32>

pub fn key_of(&self, id: u32) -> &str

pub fn label_of(&self, id: u32) -> Option<&str>

pub fn nodes_with_label(&self, label: &str) -> Vec<u32>

pub fn prop(&self, id: u32, field: &str) -> Option<ValueRef<'_>>

Look up the property field for node id.

Returns ValueRef::Borrowed for overlay hits (zero allocation) and ValueRef::Owned for base-section hits (value materialised from archived data). Returns None when neither overlay nor base has a value for (id, field).