Struct PrimaryEntityTypeId 

pub struct PrimaryEntityTypeId(/* private fields */);

Immutable primary property-routing label, independent of current membership.

The existing topology scalar uses u32::MAX for an originally unlabelled node. Label changes can leave that absence beside a nonempty membership list.

Implementations

impl PrimaryEntityTypeId

pub const fn absent() -> Self

Preserve the original absence of a primary routing label.

pub const fn known(id: EntityTypeId) -> Self

Preserve a checked original primary routing label.

pub const fn decode(encoded: u32) -> Result<Self, CatalogIdError>

Decode the existing primary-routing scalar, including its absence value.

pub const fn encode(self) -> u32

Return the original scalar without inferring it from current membership.

pub const fn label(self) -> Option<EntityTypeId>

Inspect the original routing label independently of current membership.

Trait Implementations

impl Clone for PrimaryEntityTypeId

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PrimaryEntityTypeId

impl Debug for PrimaryEntityTypeId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PrimaryEntityTypeId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for PrimaryEntityTypeId

impl From<PrimaryEntityTypeId> for u32

fn from(value: PrimaryEntityTypeId) -> Self

Converts to this type from the input type.

impl Hash for PrimaryEntityTypeId

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PrimaryEntityTypeId

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for PrimaryEntityTypeId

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for PrimaryEntityTypeId

impl TryFrom<u32> for PrimaryEntityTypeId

type Error = CatalogIdError

The type returned in the event of a conversion error.

fn try_from(value: u32) -> Result<Self, Self::Error>

Performs the conversion.