Struct Requirement 

pub struct Requirement {
    pub facet: Facet,
    pub occurrence: Occurrence,
    pub uri: Option<String>,
    pub instructions: Option<String>,
}

One requirement facet with the attributes only requirements carry.

Fields

facet: Facet

What is required.

occurrence: Occurrence

@cardinality, Occurrence::DEFAULT when absent. An entity facet has no cardinality and is always required; a partOf facet cannot be optional.

uri: Option<String>

@uri, allowed on classification, property and material facets.

instructions: Option<String>

@instructions, meant for the model author.

Implementations

impl Requirement

pub fn new(facet: impl Into<Facet>) -> Requirement

A required facet with no uri or instructions.

pub fn with_occurrence( facet: impl Into<Facet>, occurrence: Occurrence, ) -> Requirement

A facet with the given cardinality and no uri or instructions.

Trait Implementations

impl Clone for Requirement

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Requirement

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

Formats the value using the given formatter.

impl<F: Into<Facet>> From<F> for Requirement

fn from(facet: F) -> Requirement

Converts to this type from the input type.

impl PartialEq for Requirement

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Requirement