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TraversalResponse

Struct TraversalResponse 

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pub struct TraversalResponse {
    pub nodes: Vec<NodeView>,
    pub edges: Vec<EdgeRef>,
    pub seeds: Vec<NodeKey>,
    pub truncated: Option<TruncationReason>,
    pub revision: GraphRevision,
    pub consistent_snapshot: bool,
}
Expand description

Traversal / neighborhood response.

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§nodes: Vec<NodeView>§edges: Vec<EdgeRef>§seeds: Vec<NodeKey>

The seeds the walk actually started from: the requested keys, deduped, and with the ones the caller may not see removed.

A caller cannot derive this from the request. Denied and unknown seeds are indistinguishable by contract, and both are simply absent, so a traversal from five keys that answers about three is otherwise silent about which three — and “seeds always survive truncation” is a promise with nothing to check it against.

§truncated: Option<TruncationReason>§revision: GraphRevision§consistent_snapshot: bool

Whether every arm of this read observed one graph state.

The contract asks for a repeatable-read snapshot across seed resolution, every hop and hydration. A store that cannot hold one declares StoreCapabilities::snapshots = false, and the service then brackets the walk with a revision read: unchanged means nothing committed while it ran and the answer is as good as a snapshot, while a moved revision means the arms may not agree with each other.

Said out loud because the alternative is a revision field that names a state the response never existed at, which no consumer can detect and every revision-keyed cache would trust.

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impl Clone for TraversalResponse

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for TraversalResponse

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

Formats the value using the given formatter. Read more
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impl PartialEq for TraversalResponse

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fn eq(&self, other: &Self) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for TraversalResponse

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impl<T> Any for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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type Owned = T

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