Struct GenericTransition 

pub struct GenericTransition<T> {
    pub transaction_id: u128,
    pub sequence: i64,
    pub timestamp_ms: i64,
    pub kind: TransitionKind,
    pub before: GenericDoubletLink<T>,
    pub after: GenericDoubletLink<T>,
}

Reversible write captured by the transactions layer. Holds both before and after link states so the operation can be undone or replayed.

Fields

transaction_id: u128

sequence: i64

timestamp_ms: i64

kind: TransitionKind

before: GenericDoubletLink<T>

after: GenericDoubletLink<T>

Implementations

impl<T: LinkReference> GenericTransition<T>

pub const SCHEMA_VERSION: &'static str = "v1"

pub fn serialize(&self) -> String

Encodes the transition as a single line stored as one entry of the transitions log.

Addresses are written in decimal, so a log written by a u32-addressed store reads back unchanged in a u64- or usize-addressed one.

pub fn parse(text: &str) -> Result<Self, LinkError>

Parses a serialized transition.

Returns LinkError::InvalidFormat for anything that is not a well-formed entry — including the partial line a crash can leave at the end of an append-only log — and LinkError::AddressOutOfRange for a structurally valid entry whose addresses do not fit into T. The two are distinct on purpose: recovery skips torn entries but must not silently drop a log written by a wider address type.

pub fn try_parse(text: &str) -> Option<Self>

Lenient variant of GenericTransition::parse.

Trait Implementations

impl<T: Clone> Clone for GenericTransition<T>

fn clone(&self) -> GenericTransition<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Copy> Copy for GenericTransition<T>

impl<T: Debug> Debug for GenericTransition<T>

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

Formats the value using the given formatter.

impl<T: Eq> Eq for GenericTransition<T>

impl<T: Hash> Hash for GenericTransition<T>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: PartialEq> PartialEq for GenericTransition<T>

fn eq(&self, other: &GenericTransition<T>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<T: PartialEq> StructuralPartialEq for GenericTransition<T>