Struct SchemaMetadataRecord 

pub struct SchemaMetadataRecord { /* private fields */ }

SchemaMetadataRecord

Schema metadata observed in one committed generation.

Schema metadata is diagnostic ledger history. It is validated for bounded durable encoding, but ic-memory does not prove application schema support or data migration correctness.

Implementations

impl SchemaMetadataRecord

pub const fn new(generation: u64, schema: SchemaMetadata) -> Self

Build a history record from checked schema metadata. Ledger integrity validation checks its generation against the history.

pub const fn generation(&self) -> u64

Return the generation that declared this schema metadata.

pub const fn schema(&self) -> &SchemaMetadata

Return the schema metadata declared by that generation.

Trait Implementations

impl Clone for SchemaMetadataRecord

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 SchemaMetadataRecord

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for SchemaMetadataRecord

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for SchemaMetadataRecord

impl PartialEq for SchemaMetadataRecord

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for SchemaMetadataRecord

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 SchemaMetadataRecord