Struct Expirable 

pub struct Expirable { /* private fields */ }

A container for TTL-wrapped values.

Expirable is one of the six container types. It wraps a child node with expiration metadata, producing { value, expires_at, created_at }.

Example

use paramdef::container::Expirable;
use paramdef::types::leaf::Text;

let token = Expirable::builder("cached_token")
    .label("Cached Token")
    .ttl_hours(1)
    .auto_refresh(true)
    .warning_threshold(300) // Warn 5 min before expiry
    .child(Text::builder("token").build())
    .build();

Implementations

impl Expirable

pub fn builder(key: impl Into<Key>) -> ExpirableBuilder

Creates a new builder for an Expirable container.

pub fn flags(&self) -> Flags

Returns the flags for this expirable.

pub fn child(&self) -> Option<&Arc<dyn Node>>

Returns the child node, if any.

pub fn options(&self) -> &ExpirableOptions

Returns the expirable options.

pub fn ttl(&self) -> u64

Returns the TTL in seconds.

Trait Implementations

impl Clone for Expirable

fn clone(&self) -> Expirable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Container for Expirable

fn children(&self) -> &[Arc<dyn Node>]

Returns all child nodes.

impl Debug for Expirable

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

Formats the value using the given formatter.

impl Node for Expirable

fn metadata(&self) -> &Metadata

Returns the node’s metadata.

fn key(&self) -> &Key

Returns the node’s unique key.

fn kind(&self) -> NodeKind

Returns the node’s kind (category).

fn as_any(&self) -> &dyn Any

Returns a reference to the underlying type for downcasting.

fn as_any_mut(&mut self) -> &mut dyn Any

Returns a mutable reference to the underlying type for downcasting.