Struct TransactionTime 

pub struct TransactionTime {
    timestamp: i64,
}

Represents when a fact was recorded in the system (transaction time).

Transaction time is immutable after creation - it captures the moment when the system learned about a fact. This enables point-in-time queries and auditing.

Fields

timestamp: i64

Unix timestamp when the record was created.

Implementations

impl TransactionTime

pub fn now() -> Self

Creates a transaction time at the current moment.

pub const fn at(timestamp: i64) -> Self

Creates a transaction time at a specific timestamp.

This should only be used for importing historical data or testing.

pub const fn timestamp(&self) -> i64

Returns the timestamp.

pub const fn is_before(&self, other: &Self) -> bool

Checks if this transaction time is before another.

pub const fn is_after(&self, other: &Self) -> bool

Checks if this transaction time is after another.

pub const fn was_known_at(&self, timestamp: i64) -> bool

Checks if this transaction occurred before or at the given timestamp.

Trait Implementations

impl Clone for TransactionTime

fn clone(&self) -> TransactionTime

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TransactionTime

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

Formats the value using the given formatter.

impl Default for TransactionTime

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for TransactionTime

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TransactionTime

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

Formats the value using the given formatter.

impl From<i64> for TransactionTime

fn from(timestamp: i64) -> Self

Converts to this type from the input type.

impl Hash for TransactionTime

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 PartialEq for TransactionTime

fn eq(&self, other: &TransactionTime) -> 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 Serialize for TransactionTime

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for TransactionTime

impl Eq for TransactionTime

impl StructuralPartialEq for TransactionTime