LruCacheImpl<K, V> class abstract

An abstract base class that provides a partial implementation of the LruCache interface.

This class manages the core data structures and statistics for an LRU cache, including the underlying map, size tracking, and synchronization. Subclasses should implement the remaining logic for cache operations.

Inheritance
Implementers

Constructors

LruCacheImpl.new(int maxSize)
Constructs an LruCacheImpl with the specified maxSize.

Properties

evictionCount ↔ int
The total number of times an entry has been evicted from the cache.
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
hitCount ↔ int
The total number of cache hits (successful lookups).
getter/setter pair
lock → Lock
A lock used to synchronize access to the cache for thread safety.
final
map ↔ LinkedHashMap<K, V>
The map that stores the cache entries in access order.
latefinal
maxSize ↔ int
The maximum number of entries the cache can hold.
getter/setter pair
missCount ↔ int
The total number of cache misses (failed lookups).
getter/setter pair
putCount ↔ int
The total number of times an entry has been added to the cache.
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
size ↔ int
The current number of entries in the cache.
getter/setter pair

Methods

clear() → Future<void>
Removes all entries from the cache.
override
get(K key) → Future<V?>
Returns the value associated with the given key, or null if the key is not present.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
put(K key, V value) → Future<V?>
Inserts or updates the value for the given key in the cache.
inherited
remove(K key) → Future<V?>
Removes the entry for the specified key from the cache, if it exists.
inherited
resize(int maxSize) → Future<void>
Resizes the cache to the new maxSize.
override
toString() → String
Returns a string representation of the cache, including statistics such as maximum size, hit count, miss count, and hit rate percentage.
override
trimToSize(int maxSize) → Future<void>
Trims the cache so that its size does not exceed maxSize.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited