Struct ViewportRequest 

pub struct ViewportRequest {
    pub collection: String,
    pub selector: ViewportSelector,
    pub depth: u32,
    pub edge_labels: Vec<String>,
    pub direction: ViewportDirection,
    pub node_limit: u32,
}

A viewport request. The runtime call that will translate this into a populated Viewport is wired in a follow-up slice; the shape is the load-bearing contract here.

Fields

collection: String

Graph collection name.

selector: ViewportSelector

How to pick the starting node set.

depth: u32

How many hops out from the seed set to expand. 0 means “just the seeds, no expansion”.

edge_labels: Vec<String>

Optional edge-label allow-list. Empty = all labels.

direction: ViewportDirection

Traversal direction.

node_limit: u32

Hard cap on returned nodes. The builder enforces this and reports the cap via TruncationMeta::node_limit_hit.

Implementations

impl ViewportRequest

pub fn center( collection: impl Into<String>, node: impl Into<String>, ) -> ViewportRequest

Convenience: minimal request seeded from a single center node with default direction (Both).

Trait Implementations

impl Clone for ViewportRequest

fn clone(&self) -> ViewportRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewportRequest

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

Formats the value using the given formatter.

impl Eq for ViewportRequest

impl PartialEq for ViewportRequest

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ViewportRequest