Struct SchemaMetadata 

pub struct SchemaMetadata { /* private fields */ }

SchemaMetadata

Optional diagnostic metadata for an in-place store schema.

This metadata helps humans and frameworks diagnose which schema version was most recently declared. Construction and decoding require a nonzero version when present. It does not perform application schema migrations or validate stable data semantics.

Implementations

impl SchemaMetadata

pub const fn new( schema_version: Option<u32>, ) -> Result<SchemaMetadata, SchemaMetadataError>

Construct schema metadata after validating the persisted encoding bounds.

pub const fn schema_version(&self) -> Option<u32>

Return the optional in-place schema version.

Trait Implementations

impl Clone for SchemaMetadata

fn clone(&self) -> SchemaMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchemaMetadata

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

Formats the value using the given formatter.

impl Default for SchemaMetadata

fn default() -> SchemaMetadata

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SchemaMetadata

fn deserialize<__D>( __deserializer: __D, ) -> Result<SchemaMetadata, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for SchemaMetadata

impl PartialEq for SchemaMetadata

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for SchemaMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SchemaMetadata