Struct JournalConfig 

pub struct JournalConfig {
    pub enabled: bool,
    pub max_bytes_per_view: u64,
    pub max_records_per_view: usize,
    pub max_age: Duration,
}

Retention bounds for the event journal. Whichever bound bites first wins.

Fields

enabled: bool

Master opt-in. Disabled leaves append views on their previous latest-state delivery.

max_bytes_per_view: u64

Retained bytes per view, counting frames plus per-record overhead.

This is the bound to budget against: frame size is stack-dependent, so a record count cannot be reasoned about against a memory limit.

max_records_per_view: usize

Retained records per view. A backstop against pathologically small frames; the byte bound is the one that should normally bite.

max_age: Duration

Records older than this are dropped even when the size bounds are not reached, so a quiet view does not advertise a stale replay window.

Implementations

impl JournalConfig

pub fn from_env() -> Result<Self>

Load from ARETE_JOURNAL_*. Stays disabled unless ARETE_JOURNAL_ENABLED=true.

An embedder hosting several deployments in one process should use crate::ServerBuilder::journal instead, which takes these as the default and overrides them per runtime.

pub fn validate(&self) -> Result<()>

Trait Implementations

impl Clone for JournalConfig

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JournalConfig

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

Formats the value using the given formatter.

impl Default for JournalConfig

fn default() -> Self

Returns the “default value” for a type.