Enum ConstraintVertex 

pub enum ConstraintVertex {
    Variable(Variable),
    Label(Type),
    Value(Value),
    NamedRole(NamedRole),
}

The answer to a TypeDB query is a set of concepts which satisfy the Constraints in the query. A ConstraintVertex is either a variable, or some identifier of the concept.

• A Variable is a vertex the query must match and return.
• A Label uniquely identifies a type
• A Value represents a primitive value literal in TypeDB.
• A NamedRole vertex is used in links & relates constraints, as multiple relations may have roles with the same name. The types inferred for Variable, Label and NamedRole vertices can be read from the variable_annotations field of the Conjunction it is in.

Variants

Variable(Variable)

Label(Type)

Value(Value)

NamedRole(NamedRole)

Trait Implementations

impl Clone for ConstraintVertex

fn clone(&self) -> ConstraintVertex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintVertex

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

Formats the value using the given formatter.