Struct VertexSourceStep 

pub struct VertexSourceStep { /* private fields */ }

Vertex source step - V()

Implementations

impl VertexSourceStep

pub fn new() -> VertexSourceStep

Create V() step for all vertices

pub fn with_ids(ids: Vec<String>) -> VertexSourceStep

Create V(id) step for specific vertex

pub fn with_type(vertex_type: String) -> VertexSourceStep

Create V().hasLabel(type) step

pub fn with_id(self, id: String) -> VertexSourceStep

Set step ID

pub fn vertex_ids(&self) -> &[String]

Get vertex IDs filter

pub fn vertex_type(&self) -> Option<&str>

Get vertex type filter

Trait Implementations

impl Clone for VertexSourceStep

fn clone(&self) -> VertexSourceStep

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VertexSourceStep

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

Formats the value using the given formatter.

impl Default for VertexSourceStep

fn default() -> VertexSourceStep

Returns the “default value” for a type.

impl SourceStep for VertexSourceStep

fn generate_traversers(&self) -> Vec<Traverser>

Generate initial traversers

impl Step for VertexSourceStep

fn id(&self) -> &str

Step identifier (unique in traversal)

fn name(&self) -> &str

Human-readable name

fn labels(&self) -> &[String]

Labels assigned to this step

fn add_label(&mut self, label: String)

Add a label to this step

fn requirements(&self) -> &[TraverserRequirement]

Requirements this step declares

fn process_traverser(&self, _traverser: Traverser) -> StepResult

Process a single traverser (standard algorithm)

fn reset(&mut self)

Reset step state for reuse

fn clone_step(&self) -> Box<dyn Step>

Clone as trait object

fn as_any(&self) -> &(dyn Any + 'static)

Downcast to concrete type

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Downcast to mutable concrete type