Enum VertexPredicate 

pub enum VertexPredicate {
    LabelEq(String),
    PropertyEq {
        key: String,
        value: Value,
    },
    PropertyExists(String),
    All(Vec<VertexPredicate>),
    Custom(Arc<dyn Fn(&Vertex) -> bool + Send + Sync>),
}

Predicate over a vertex.

Variants

LabelEq(String)

vertex.label == label.

PropertyEq

vertex.properties[key] == value.

Fields

key: String

value: Value

PropertyExists(String)

Property is present (any value).

All(Vec<VertexPredicate>)

Conjunction of nested predicates (n-ary AND).

Custom(Arc<dyn Fn(&Vertex) -> bool + Send + Sync>)

User-supplied predicate. Carried by Arc so the pattern stays Clone; the closure is shared by reference across clones.

Implementations

impl VertexPredicate

pub fn matches(&self, vertex: &Vertex) -> bool

Trait Implementations

impl Clone for VertexPredicate

fn clone(&self) -> VertexPredicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VertexPredicate

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

Formats the value using the given formatter.