Enum UndoPageType 

pub enum UndoPageType {
    Insert,
    Update,
    Unknown(u16),
}

Undo page types.

Examples

use idb::innodb::undo::UndoPageType;

let insert = UndoPageType::from_u16(1);
assert_eq!(insert, UndoPageType::Insert);
assert_eq!(insert.name(), "INSERT");

let update = UndoPageType::from_u16(2);
assert_eq!(update, UndoPageType::Update);
assert_eq!(update.name(), "UPDATE");

let unknown = UndoPageType::from_u16(99);
assert_eq!(unknown, UndoPageType::Unknown(99));
assert_eq!(unknown.name(), "UNKNOWN");

Variants

Insert

Insert undo log (INSERT operations only)

Update

Update undo log (UPDATE and DELETE operations)

Unknown(u16)

Unknown type

Implementations

impl UndoPageType

pub fn from_u16(value: u16) -> Self

Convert a raw u16 value from the undo page header to an UndoPageType.

pub fn name(&self) -> &'static str

Returns the MySQL source-style name for this undo page type.

Trait Implementations

impl Clone for UndoPageType

fn clone(&self) -> UndoPageType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for UndoPageType

impl Debug for UndoPageType

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

Formats the value using the given formatter.

impl Eq for UndoPageType

impl PartialEq for UndoPageType

fn eq(&self, other: &UndoPageType) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for UndoPageType

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for UndoPageType