Struct Edge 

pub struct Edge {

    pub id: EdgeId,
    pub src: VertexId,
    pub src_type: TypeName,
    pub dst: VertexId,
    pub dst_type: TypeName,
    pub label: String,
    pub properties: BTreeMap<String, PropertyValue>,
    pub valid_from: Option<DateTime<Utc>>,
    pub valid_to: Option<DateTime<Utc>>,
    pub observed_at: Option<DateTime<Utc>>,
    pub extracted_at: Option<DateTime<Utc>>,
    pub confidence: Option<f32>,
    pub evidenced_by: Vec<EvidenceId>,
}

A directed, labeled edge between two vertices, with optional bitemporal validity. The payload of an edge record.

Fields

id: EdgeId

Edge id, unique within the scope.

src: VertexId

Source vertex id.

src_type: TypeName

Source vertex type.

dst: VertexId

Destination vertex id.

dst_type: TypeName

Destination vertex type.

label: String

Relation name (e.g. “hasStakeholder”), NOT namespace-qualified.

properties: BTreeMap<String, PropertyValue>

Typed properties carried on the edge, keyed by property name.

valid_from: Option<DateTime<Utc>>

Start of real-world validity; None = always was.

valid_to: Option<DateTime<Utc>>

End of real-world validity (exclusive); None = still holds.

observed_at: Option<DateTime<Utc>>

Wall-clock time the fact was recorded.

extracted_at: Option<DateTime<Utc>>

Wall-clock time the extractor produced it.

confidence: Option<f32>

Confidence in [0,1] for the fact. None is treated as 1.0 for matching purposes.

evidenced_by: Vec<EvidenceId>

First-class evidence references. Empty by default (backwards-compatible with older payloads).

Implementations

impl Edge

pub fn valid_at(&self, t: DateTime<Utc>) -> bool

Returns true iff this edge is valid at the given instant.

Edges with no valid_from are treated as valid from -infinity. Edges with no valid_to are treated as still-holding.

pub fn valid_between(&self, t1: DateTime<Utc>, t2: DateTime<Utc>) -> bool

Returns true iff this edge’s validity interval overlaps [t1, t2).

pub fn still_holds(&self) -> bool

True if the edge is currently active (valid_to is None).

Trait Implementations

impl Clone for Edge

fn clone(&self) -> Edge

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Edge

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Edge

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Edge

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Edge

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Edge