Struct EdgePattern 

pub struct EdgePattern {
    pub alias: Option<String>,
    pub from: String,
    pub to: String,
    pub edge_label: Option<String>,
    pub direction: EdgeDirection,
    pub min_hops: u32,
    pub max_hops: u32,
}

Edge pattern: -[alias:Type*min..max]->

Fields

alias: Option<String>

Optional alias for this edge

from: String

Source node alias

to: String

Target node alias

edge_label: Option<String>

Optional label filter (user-supplied string).

direction: EdgeDirection

Edge direction

min_hops: u32

Minimum hops (for variable-length patterns)

max_hops: u32

Maximum hops (for variable-length patterns)

Implementations

impl EdgePattern

pub fn new(from: &str, to: &str) -> EdgePattern

Create a new edge pattern

pub fn of_label(self, label: impl Into<String>) -> EdgePattern

Set label filter (string form — preferred).

pub fn direction(self, dir: EdgeDirection) -> EdgePattern

Set direction

pub fn hops(self, min: u32, max: u32) -> EdgePattern

Set hop range for variable-length patterns

pub fn alias(self, alias: &str) -> EdgePattern

Set alias

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<(), Error>

Formats the value using the given formatter.