Struct A2aTaskRetention 

pub struct A2aTaskRetention {
    pub max_finished: Option<usize>,
    pub ttl: Option<Duration>,
}

How many finished A2A task records a TaskStore keeps, and for how long.

A record is kept so tasks/get can report the outcome after message/send returns. Every record in the store belongs to an execution that has ended — running tasks are tracked separately and are never evicted.

The default keeps the newest 1,000 records for at most one hour.

Example

use adk_server::A2aTaskRetention;
use std::time::Duration;

let retention =
    A2aTaskRetention::default().with_max_finished(500).with_ttl(Duration::from_secs(600));
assert_eq!(retention.max_finished, Some(500));
assert_eq!(retention.ttl, Some(Duration::from_secs(600)));

Fields

max_finished: Option<usize>

How many finished task records to keep, newest first. None keeps every record.

ttl: Option<Duration>

How long a finished task record stays readable. None disables expiry.

Implementations

impl A2aTaskRetention

pub fn unlimited() -> Self

Keeps every finished task record forever. The store then grows without bound.

pub fn with_max_finished(self, count: usize) -> Self

Keeps at most count finished task records, evicting the oldest first.

pub fn with_ttl(self, ttl: Duration) -> Self

Expires a finished task record ttl after its execution ended.

Trait Implementations

impl Clone for A2aTaskRetention

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for A2aTaskRetention

impl Debug for A2aTaskRetention

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

Formats the value using the given formatter.

impl Default for A2aTaskRetention

fn default() -> Self

Returns the “default value” for a type.

impl Eq for A2aTaskRetention

impl PartialEq for A2aTaskRetention

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for A2aTaskRetention