Class UnlimitedConcurrentCache<K,V>
java.lang.Object
org.codehaus.groovy.runtime.memoize.UnlimitedConcurrentCache<K,V>
- All Implemented Interfaces:
Serializable,Map<K,,V> EvictableCache<K,,V> MemoizeCache<K,V>
@ThreadSafe
public final class UnlimitedConcurrentCache<K,V>
extends Object
implements EvictableCache<K,V>, Serializable
A cache backed by a ConcurrentHashMap
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from interface org.codehaus.groovy.runtime.memoize.EvictableCache
EvictableCache.Action<K,V, R>, EvictableCache.EvictionStrategy Nested classes/interfaces inherited from interface java.util.Map
Map.Entry<K extends Object,V extends Object> Nested classes/interfaces inherited from interface org.codehaus.groovy.runtime.memoize.MemoizeCache
MemoizeCache.ValueProvider<K,V> -
Constructor Summary
ConstructorsConstructorDescriptionConstructs a cache with unlimited sizeUnlimitedConcurrentCache(int initialCapacity) Constructs a cache with unlimited size and set its initial capacityUnlimitedConcurrentCache(Map<? extends K, ? extends V> m) Constructs a cache and initialize the cache with the specified map -
Method Summary
Modifier and TypeMethodDescriptionvoidReplying on the ConcurrentHashMap thread-safe iteration implementation the method will remove all entries holding SoftReferences to gc-evicted objects.clearAll()Clear the cachebooleancontainsKey(Object key) Determines if the cache contains an entry for the specified key.booleancontainsValue(Object value) entrySet()Gets a value from the cachegetAndPut(K key, MemoizeCache.ValueProvider<? super K, ? extends V> valueProvider) Try to get the value from cache.booleanisEmpty()keys()Get all keys associated to cached valueskeySet()Associates the specified value with the specified key in the cache.voidRemove the cached value by the keyintsize()Get the size of the cachevalues()Get all cached valuesMethods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface org.codehaus.groovy.runtime.memoize.EvictableCache
clearMethods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, equals, forEach, getOrDefault, hashCode, merge, putIfAbsent, remove, replace, replace, replaceAll
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Constructor Details
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UnlimitedConcurrentCache
public UnlimitedConcurrentCache()Constructs a cache with unlimited size -
UnlimitedConcurrentCache
public UnlimitedConcurrentCache(int initialCapacity) Constructs a cache with unlimited size and set its initial capacity- Parameters:
initialCapacity- the initial capacity
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UnlimitedConcurrentCache
Constructs a cache and initialize the cache with the specified map- Parameters:
m- the map to initialize the cache
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Method Details
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remove
Remove the cached value by the key -
putAll
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keySet
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clearAll
Clear the cache- Specified by:
clearAllin interfaceEvictableCache<K,V> - Returns:
- returns the content of the cleared map
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values
Get all cached values -
entrySet
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keys
Get all keys associated to cached values- Specified by:
keysin interfaceEvictableCache<K,V> - Returns:
- all keys
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containsKey
Determines if the cache contains an entry for the specified key.- Specified by:
containsKeyin interfaceEvictableCache<K,V> - Specified by:
containsKeyin interfaceMap<K,V> - Parameters:
key- key whose presence in this cache is to be tested.- Returns:
- true if the cache contains a mapping for the specified key
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containsValue
- Specified by:
containsValuein interfaceMap<K,V>
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size
public int size()Get the size of the cache -
isEmpty
public boolean isEmpty() -
put
Associates the specified value with the specified key in the cache. -
get
Gets a value from the cache -
getAndPut
Try to get the value from cache. If not found, create the value byMemoizeCache.ValueProviderand put it into the cache, at last return the value.- Specified by:
getAndPutin interfaceMemoizeCache<K,V> - Parameters:
key-valueProvider- provide the value if the associated value not found- Returns:
- the cached value
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cleanUpNullReferences
public void cleanUpNullReferences()Replying on the ConcurrentHashMap thread-safe iteration implementation the method will remove all entries holding SoftReferences to gc-evicted objects.- Specified by:
cleanUpNullReferencesin interfaceMemoizeCache<K,V>
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