Struct SchemaMetadata 

pub struct SchemaMetadata {
    pub schema_version: Option<u32>,
    pub schema_fingerprint: Option<String>,
}

SchemaMetadata

Optional diagnostic metadata for an in-place store schema.

This metadata helps humans and frameworks diagnose which schema version or fingerprint was declared in each generation. It is bounded and validated for durable ledger encoding, but it does not perform application schema migrations or validate stable data semantics.

Fields

schema_version: Option<u32>

Optional in-place schema version.

schema_fingerprint: Option<String>

Optional opaque schema fingerprint.

Implementations

impl SchemaMetadata

pub fn new( schema_version: Option<u32>, schema_fingerprint: Option<String>, ) -> Result<Self, SchemaMetadataError>

Construct schema metadata after validating the persisted encoding bounds.

pub fn validate(&self) -> Result<(), SchemaMetadataError>

Validate schema metadata encoding rules.

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

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<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for SchemaMetadata

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for SchemaMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for SchemaMetadata

impl StructuralPartialEq for SchemaMetadata