Enum AsOfScope 

pub enum AsOfScope<'a> {
    Role(&'a str),
    Keys(&'a [String]),
    RoleAndKeys(&'a str, &'a [String]),
    Namespace(&'a str),
}

How an as-of read is restricted — the argument to GraphDb::query_at_scoped.

Every variant is resolved against the graph as it was at the requested commit, not against the current graph.

Variants

Role(&'a str)

Everything the named role may see. The role definition is the current one — roles.json is a sidecar and has no past version — but its keys and labels are resolved against the as-of graph.

Keys(&'a [String])

An explicit node-key allow-list. Keys that did not exist at that commit resolve to nothing.

RoleAndKeys(&'a str, &'a [String])

A role intersected with a client-supplied allow-list. The intersection is the never-widen rule: a client mask can only narrow a role.

Namespace(&'a str)

Every live node in one namespace, as the graph was at that commit.

A namespace cannot change — it is set at insert and immutable — so the answer is simply “the nodes that existed then and are in this namespace”. A name no node uses resolves to nothing, never to everything.

Trait Implementations

impl<'a> Clone for AsOfScope<'a>

fn clone(&self) -> AsOfScope<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for AsOfScope<'a>

impl<'a> Debug for AsOfScope<'a>

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

Formats the value using the given formatter.