Struct VersionedState 

pub struct VersionedState<T> {
    pub version: u32,
    pub data: T,
    pub timestamp: u64,
    pub ttl_seconds: Option<u64>,
}

Versioned state wrapper for migration support

Fields

version: u32

Schema version for migration

data: T

Actual state data

timestamp: u64

Timestamp when state was saved

ttl_seconds: Option<u64>

Optional TTL in seconds

Implementations

impl<T> VersionedState<T>

pub fn new(data: T, version: u32) -> Self

Create new versioned state

pub fn with_ttl(data: T, version: u32, ttl: Duration) -> Self

Create new versioned state with TTL

pub fn is_expired(&self) -> bool

Check if state has expired based on TTL

pub fn age_seconds(&self) -> u64

Get age of state in seconds

Trait Implementations

impl<T: Clone> Clone for VersionedState<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for VersionedState<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for VersionedState<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 VersionedState<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.