Struct EdgeExpansionSlot 

pub struct EdgeExpansionSlot {
    pub slot: String,
    pub direction: TraverseDirection,
    pub label: String,
    pub max_depth: usize,
    pub endpoint_filter: Option<Predicate>,
    pub edge_filter: Option<Predicate>,
}

An edge-projecting expansion slot.

Emits (EdgeRow, NodeRow) tuples per root on execution. The endpoint node is the target on Out traversal, source on In. For max_depth > 1, each emitted tuple reflects the final-hop edge leading to the emitted endpoint node.

Fields

slot: String

Slot name used to key the expansion results. Must be unique across both node-expansion and edge-expansion slots in the same query.

direction: TraverseDirection

Direction to traverse edges.

label: String

Edge kind (label) to follow.

max_depth: usize

Maximum traversal depth.

endpoint_filter: Option<Predicate>

Optional predicate filtering the endpoint node (the target side on Out, the source side on In). Reuses the Predicate enum.

edge_filter: Option<Predicate>

Optional predicate filtering the traversed edges. Only EdgePropertyEq and EdgePropertyCompare are valid here.

Trait Implementations

impl Clone for EdgeExpansionSlot

fn clone(&self) -> EdgeExpansionSlot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EdgeExpansionSlot

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

Formats the value using the given formatter.

impl PartialEq for EdgeExpansionSlot

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for EdgeExpansionSlot

impl StructuralPartialEq for EdgeExpansionSlot