Struct EdgePattern 

pub struct EdgePattern {
    pub variable: Option<String>,
    pub types: Vec<String>,
    pub direction: EdgeDirection,
    pub target: NodePattern,
    pub min_hops: Option<u32>,
    pub max_hops: Option<u32>,
    pub properties: Vec<(String, Expression)>,
    pub where_clause: Option<Expression>,
    pub questioned: bool,
    pub span: Option<SourceSpan>,
}

An edge pattern like -[:KNOWS]-> or -[:KNOWS*1..3]->.

Fields

variable: Option<String>

Variable name (optional).

types: Vec<String>

Edge types to match.

direction: EdgeDirection

Direction of the edge.

target: NodePattern

Target node pattern.

min_hops: Option<u32>

Variable-length path: minimum hops (None means 1).

max_hops: Option<u32>

Variable-length path: maximum hops (None means unlimited or same as min).

properties: Vec<(String, Expression)>

Property filters for the edge.

where_clause: Option<Expression>

Element pattern WHERE clause: -[e WHERE e.weight > 5]->.

questioned: bool

Questioned edge: ->? means “optional” (0 or 1 hop).

span: Option<SourceSpan>

Source span.

Trait Implementations

impl Clone for EdgePattern

fn clone(&self) -> EdgePattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EdgePattern

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

Formats the value using the given formatter.