Struct VersionMeta 

pub struct VersionMeta {
    pub created_by: TxnId,
    pub created_ts: Timestamp,
    pub deleted_by: TxnId,
    pub deleted_ts: Timestamp,
    pub commit_ts: Timestamp,
}

Version metadata

Common metadata for all version chain implementations.

Fields

created_by: TxnId

Transaction that created this version

created_ts: Timestamp

Timestamp when this version was created

deleted_by: TxnId

Transaction that deleted this version (0 = not deleted)

deleted_ts: Timestamp

Timestamp when this version was deleted (0 = not deleted)

commit_ts: Timestamp

Commit timestamp (0 = not yet committed)

Implementations

impl VersionMeta

pub fn new_uncommitted(created_by: TxnId, created_ts: Timestamp) -> Self

Create metadata for a new uncommitted version

pub fn is_visible(&self, ctx: &VisibilityContext) -> bool

Check if this version is visible according to the context

pub fn commit(&mut self, commit_ts: Timestamp)

Mark as committed

pub fn delete(&mut self, deleted_by: TxnId, deleted_ts: Timestamp)

Mark as deleted

pub fn is_committed(&self) -> bool

Check if version is committed

pub fn is_deleted(&self) -> bool

Check if version is deleted

Trait Implementations

impl Clone for VersionMeta

fn clone(&self) -> VersionMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VersionMeta

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

Formats the value using the given formatter.