Enum ColdStorage 

pub enum ColdStorage {}

Cold storage tier.

This is a placeholder enum with no variants yet. Will be implemented when cold tier storage is needed.

Trait Implementations

impl Clone for ColdStorage

fn clone(&self) -> ColdStorage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl TierStorage for ColdStorage

fn get( &self, _table: EntryKind, _key: &[u8], _version: CommitVersion, ) -> Result<Option<CowVec<u8>>>

Get the value for a key at or before the given version.

fn set( &self, _version: CommitVersion, _batches: HashMap<EntryKind, Vec<(CowVec<u8>, Option<CowVec<u8>>)>>, ) -> Result<()>

Write entries to multiple tables atomically at the given version.

fn range_next( &self, _table: EntryKind, _cursor: &mut RangeCursor, _start: Bound<&[u8]>, _end: Bound<&[u8]>, _version: CommitVersion, _batch_size: usize, ) -> Result<RangeBatch>

Fetch the next batch of entries in key order at or before version.

fn range_rev_next( &self, _table: EntryKind, _cursor: &mut RangeCursor, _start: Bound<&[u8]>, _end: Bound<&[u8]>, _version: CommitVersion, _batch_size: usize, ) -> Result<RangeBatch>

Fetch the next batch of entries in reverse key order at or before version.

fn ensure_table(&self, _table: EntryKind) -> Result<()>

Ensure a table exists (creates if needed).

fn clear_table(&self, _table: EntryKind) -> Result<()>

Delete all entries in a table.

fn drop( &self, _batches: HashMap<EntryKind, Vec<(CowVec<u8>, CommitVersion)>>, ) -> Result<()>

Physically drop specific versions of entries from storage.

fn get_all_versions( &self, _table: EntryKind, _key: &[u8], ) -> Result<Vec<(CommitVersion, Option<CowVec<u8>>)>>

Get all versions of a specific key (for internal cleanup operations).

fn contains( &self, table: EntryKind, key: &[u8], version: CommitVersion, ) -> Result<bool>

Check if a key exists at or before the given version.

impl TierBackend for ColdStorage