Enum LogEntryType 

pub enum LogEntryType {
    Begin,
    Commit,
    Abort,
    Insert {
        key: Vec<u8>,
        value: Vec<u8>,
    },
    Update {
        key: Vec<u8>,
        old_value: Vec<u8>,
        new_value: Vec<u8>,
    },
    Delete {
        key: Vec<u8>,
        old_value: Vec<u8>,
    },
    Checkpoint {
        active_txns: Vec<u64>,
    },
    Savepoint {
        name: String,
    },
    RollbackToSavepoint {
        name: String,
    },
    Compensate {
        original_lsn: u64,
    },
    End,
}

Log entry types

Variants

Begin

Transaction begin

Commit

Transaction commit

Abort

Transaction abort

Insert

Data insert

Fields

key: Vec<u8>

value: Vec<u8>

Update

Data update (before and after images)

Fields

key: Vec<u8>

old_value: Vec<u8>

new_value: Vec<u8>

Delete

Data delete

Fields

key: Vec<u8>

old_value: Vec<u8>

Checkpoint

Checkpoint marker

Fields

active_txns: Vec<u64>

Savepoint

Savepoint creation

Fields

name: String

RollbackToSavepoint

Savepoint rollback

Fields

name: String

Compensate

Compensation log record (for undo)

Fields

original_lsn: u64

End

End of transaction (after all cleanup)

Implementations

impl LogEntryType

pub fn is_commit(&self) -> bool

Check if this is a commit record

pub fn is_abort(&self) -> bool

Check if this is an abort record

pub fn is_data_modification(&self) -> bool

Check if this is a data modification

pub fn to_bytes(&self) -> Vec<u8>

Serialize to bytes

pub fn from_bytes(data: &[u8]) -> Result<(LogEntryType, usize), Error>

Deserialize from bytes

Trait Implementations

impl Clone for LogEntryType

fn clone(&self) -> LogEntryType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogEntryType

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

Formats the value using the given formatter.

impl PartialEq for LogEntryType

fn eq(&self, other: &LogEntryType) -> 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 Eq for LogEntryType

impl StructuralPartialEq for LogEntryType