Cache<K, V> class abstract interface

The common contract shared by the in-memory caches (LruCache, TtlCache, SizeLimitCache): look up a key, store a value, clear everything.

Depending on this interface instead of a concrete class lets a call site require "a cache" without committing to an eviction policy, so LRU, TTL, or size-limited can be swapped without touching consumers. null from get always means absent-or-expired, which is why the concrete caches constrain V to a non-nullable type.

Implementers

• LruCache
• SizeLimitCache
• TtlCache

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

Methods

clear() → void

Removes every entry. Audited: 2026-06-12 11:26 EDT

get(K key) → V?

Returns the value cached under key, or null if absent or expired. Audited: 2026-06-12 11:26 EDT

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

set(K key, V value) → void

Stores value under key, applying this cache's eviction policy. Audited: 2026-06-12 11:26 EDT

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited