Struct StoreMetadata 

pub struct StoreMetadata {
    pub version: MetadataVersion,
    pub created_at: u64,
    pub updated_at: u64,
    pub collection_count: u64,
    pub total_documents: u64,
    pub total_size_bytes: u64,
    pub wal_config: StoreWalConfig,
}

Store metadata stored on disk.

This struct contains all persistent metadata for the store, including global statistics, operational state, and WAL configuration.

Storage limit: 10MB total serialized size

Fields

version: MetadataVersion

Metadata format version

created_at: u64

Store creation timestamp

updated_at: u64

Last modification timestamp

collection_count: u64

Total number of collections

total_documents: u64

Total number of documents across all collections

total_size_bytes: u64

Total size of all data (bytes)

wal_config: StoreWalConfig

WAL configuration for the store

Implementations

impl StoreMetadata

pub fn new() -> Self

Create new metadata for a store

impl StoreMetadata

pub fn upgrade_to_current(&mut self) -> Result<(), String>

Upgrade metadata to the current version if needed

This method handles forward migration of metadata from older versions to the current version. It modifies the metadata in-place.

pub const fn needs_upgrade(&self) -> bool

Check if metadata needs upgrading

pub fn touch(&mut self)

Update the modification timestamp

pub fn add_collection(&mut self)

Add a collection

pub fn remove_collection(&mut self)

Remove a collection

pub fn update_documents(&mut self, document_delta: i64, size_delta: i64)

Update document statistics

Trait Implementations

impl Clone for StoreMetadata

fn clone(&self) -> StoreMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StoreMetadata

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

Formats the value using the given formatter.

impl Default for StoreMetadata

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StoreMetadata

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StoreMetadata

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

where __S: Serializer,

Serialize this value into the given Serde serializer.