Struct VersionEntry 

pub struct VersionEntry {
    pub commit_ts: u64,
    pub txn_id: u64,
    pub epoch: u32,
    pub value: Option<Vec<u8>>,
}

A single version of a key-value pair

Fields

commit_ts: u64

Commit timestamp (HLC)

txn_id: u64

Transaction ID that created this version

epoch: u32

Epoch when this version was created

value: Option<Vec<u8>>

The value (None = tombstone/deletion)

Implementations

impl VersionEntry

pub fn new( commit_ts: u64, txn_id: u64, epoch: u32, value: Option<Vec<u8>>, ) -> Self

Create new version entry

pub fn is_visible_at(&self, snapshot_ts: u64) -> bool

Check if this version is visible at given snapshot

Trait Implementations

impl ChainEntry for VersionEntry

fn commit_ts(&self) -> u64

Get the commit timestamp (0 = uncommitted)

fn txn_id(&self) -> u64

Get the transaction ID that created this version

fn set_commit_ts(&mut self, ts: u64)

Set the commit timestamp (called during commit)

impl Clone for VersionEntry

fn clone(&self) -> VersionEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionEntry

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

Formats the value using the given formatter.