TtlCachePolicy class

Time-to-live (TTL) cache policy.

Caches expire after a specified duration.

Example

final policy = TtlCachePolicy(
  ttl: const Duration(hours: 6),
  getTimestamps: () async => prefs.getInt('cache_timestamp'),
  setTimestamp: (key, ts) async => prefs.setInt(key, ts),
  removeTimestamp: (key) async => prefs.remove(key),
  clearAll: () async => prefs.clear(),
);

Implemented types

• CachePolicy

Constructors

TtlCachePolicy({required Duration ttl, required Future<Map<String, int>> getTimestamps(), required Future<void> setTimestamp(String key, int timestamp), required Future<void> removeTimestamp(String key), required Future<void> clearAll()})

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

ttl → Duration

final

Methods

clear() → Future<void>

Clear all cached data.

override

invalidate(String key) → Future<void>

Invalidate cached data for key.

override

isValid(String key) → Future<bool>

Check if cached data for key is still valid.

override

markFresh(String key) → Future<void>

Mark cached data for key as fresh.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited