TypeError: lrucache is not a constructor 错误表明你尝试用 new 关键字去实例化一个非构造函数类型的对象 lrucache。检查lru_cache的使用方式: 在JavaScript 中,如果你尝试使用 new 关键字来创建一个实例,但所引用的对象并不是一个构造函数,就会抛出这样的错误。 你需要检查代码中所有使用 lrucache 的地方,特别...
A return value of null from get(K), put(K, V) or remove(K) is unambiguous: the key was not in the cache. This class appeared in Android 3.1 (Honeycomb MR1); it's available as part of Android's Support Package for earlier releases. Summary Public Constructors LruCache(int max...
This class is thread-safe. Perform multiple cache operations atomically by synchronizing on the cache:{@code synchronized (cache) { if (cache.get(key) == null) { cache.put(key, value); } }} This class does not allow null to be used as a key or value. A return value of null from...
The driver passes its parameters through to the lru-cache constructor. maxThe maximum size of the cache. DefaultInfinity, which is kind of pointless. maxAgeMaximum age of an item in ms. Default isnull, meaning to not expire items.
private boolean isCleaning = false; // not volatile... piggybacked on other volatile vars private final boolean newThreadForCleanup; private volatile boolean islive = true; private final Stats stats = new Stats(); private final int acceptableWaterMark; ...
// Separate from constructor so caller can easily make an array of LRUCache// if current usage is more than new capacity, the function will attempt to// free the needed spacevirtualvoidSetCapacity(size_t capacity)override; SetStrictCapacityLimit ...
The limit is * not strict: the cache may temporarily exceed it while waiting for files to be * deleted. The limit does not include filesystem overhead or the cache * journal so space-sensitive applications should set a conservative limit. * * <p>Clients call {@link #edit} to create ...
* This class does not allow null to be used as a key or value. A return value * of null from {@link #get}, {@link #put} or {@link #remove} is unambiguous: * the key was not in the cache. 不允许key或者value为null *当get(),put(),remove()返回值为null时,key相应的项不在cac...
This class is thread-safe. Perform multiple cache operations atomically by synchronizing on the cache:{@code synchronized (cache) { if (cache.get(key) == null) { cache.put(key, value); } }} This class does not allow null to be used as a key or value. A return value of null from...
This class is thread-safe. Perform multiple cache operations atomically by synchronizing on the cache: text/java {@code synchronized (cache) { if (cache.get(key) == null) { cache.put(key, value); } }} This class does not allow null to be used as a key or value. A return value ...