public class

InstrumentedMemoryCache

extends Object
implements MemoryCache<K, V>
java.lang.Object
   ↳ com.facebook.imagepipeline.cache.InstrumentedMemoryCache<K, V>

Summary

Public Constructors
InstrumentedMemoryCache(MemoryCache<K, V> delegate, MemoryCacheTracker tracker)
Public Methods
CloseableReference<V> cache(K key, CloseableReference<V> value)
Caches the the given key-value pair.
boolean contains(Predicate<K> predicate)
Find if any of the items from the cache whose keys match the specified predicate.
CloseableReference<V> get(K key)
Gets the item with the given key, or null if there is no such item.
int removeAll(Predicate<K> predicate)
Removes all the items from the cache whose keys match the specified predicate.
[Expand]
Inherited Methods
From class java.lang.Object
From interface com.facebook.imagepipeline.cache.MemoryCache

Public Constructors

public InstrumentedMemoryCache (MemoryCache<K, V> delegate, MemoryCacheTracker tracker)

Public Methods

public CloseableReference<V> cache (K key, CloseableReference<V> value)

Caches the the given key-value pair.

The cache returns a new copy of the provided reference which should be used instead of the original one. The client should close the returned reference when it is not required anymore.

If the cache failed to cache the given value, then the null reference is returned.

Returns
  • a new reference to be used, or null if the caching failed

public boolean contains (Predicate<K> predicate)

Find if any of the items from the cache whose keys match the specified predicate.

Parameters
predicate returns true if an item with the given key matches
Returns
  • true if the predicate was found in the cache, false otherwise

public CloseableReference<V> get (K key)

Gets the item with the given key, or null if there is no such item.

Returns
  • a reference to the cached value, or null if the item was not found

public int removeAll (Predicate<K> predicate)

Removes all the items from the cache whose keys match the specified predicate.

Parameters
predicate returns true if an item with the given key should be removed
Returns
  • number of the items removed from the cache