Struct TemporalVersionChain 

pub struct TemporalVersionChain<T> {
    pub entity_id: Uuid,
    pub versions: Vec<BiTemporal<T>>,
}

Temporal version chain for tracking all versions of an entity.

Fields

entity_id: Uuid

Entity ID (stable across versions)

versions: Vec<BiTemporal<T>>

All versions ordered by recorded_at

Implementations

impl<T> TemporalVersionChain<T>

pub fn new(entity_id: Uuid, initial: BiTemporal<T>) -> Self

Create a new version chain with an initial version.

pub fn current(&self) -> Option<&BiTemporal<T>>

Get the current version.

pub fn version_at(&self, at: DateTime<Utc>) -> Option<&BiTemporal<T>>

Get the version that was current at a specific system time.

pub fn add_version(&mut self, version: BiTemporal<T>)

Add a new version.

pub fn all_versions(&self) -> &[BiTemporal<T>]

Get all versions.

pub fn version_count(&self) -> usize

Get the number of versions.

Trait Implementations

impl<T: Clone> Clone for TemporalVersionChain<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for TemporalVersionChain<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for TemporalVersionChain<T>

where T: Deserialize<'de>,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> Serialize for TemporalVersionChain<T>

where T: Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.