Package org.apache.uima.util
Class ConcurrentHashMapWithProducer<K,V>
- java.lang.Object
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- java.util.AbstractMap<K,V>
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- java.util.concurrent.ConcurrentHashMap<K,V>
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- org.apache.uima.util.ConcurrentHashMapWithProducer<K,V>
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- All Implemented Interfaces:
java.io.Serializable
,java.util.concurrent.ConcurrentMap<K,V>
,java.util.Map<K,V>
public class ConcurrentHashMapWithProducer<K,V> extends java.util.concurrent.ConcurrentHashMap<K,V>
A concurrent map supporting a value-creating get. There's a small window where the value producing function could be called multiple times on different threads, but the first one will be used and the others thrown away.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class java.util.concurrent.ConcurrentHashMap
java.util.concurrent.ConcurrentHashMap.KeySetView<K extends java.lang.Object,V extends java.lang.Object>
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Constructor Summary
Constructors Constructor Description ConcurrentHashMapWithProducer()
ConcurrentHashMapWithProducer(int initialCapacity)
ConcurrentHashMapWithProducer(int initialCapacity, float loadFactor)
ConcurrentHashMapWithProducer(int initialCapacity, float loadFactor, int concurrencyLevel)
ConcurrentHashMapWithProducer(java.util.Map<? extends K,? extends V> m)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description V
get(K key, java.util.concurrent.Callable<V> valueProducer)
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Methods inherited from class java.util.concurrent.ConcurrentHashMap
clear, compute, computeIfAbsent, computeIfPresent, contains, containsKey, containsValue, elements, entrySet, equals, forEach, forEach, forEach, forEachEntry, forEachEntry, forEachKey, forEachKey, forEachValue, forEachValue, get, getOrDefault, hashCode, isEmpty, keys, keySet, keySet, mappingCount, merge, newKeySet, newKeySet, put, putAll, putIfAbsent, reduce, reduceEntries, reduceEntries, reduceEntriesToDouble, reduceEntriesToInt, reduceEntriesToLong, reduceKeys, reduceKeys, reduceKeysToDouble, reduceKeysToInt, reduceKeysToLong, reduceToDouble, reduceToInt, reduceToLong, reduceValues, reduceValues, reduceValuesToDouble, reduceValuesToInt, reduceValuesToLong, remove, remove, replace, replace, replaceAll, search, searchEntries, searchKeys, searchValues, size, toString, values
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Constructor Detail
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ConcurrentHashMapWithProducer
public ConcurrentHashMapWithProducer()
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ConcurrentHashMapWithProducer
public ConcurrentHashMapWithProducer(int initialCapacity, float loadFactor, int concurrencyLevel)
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ConcurrentHashMapWithProducer
public ConcurrentHashMapWithProducer(int initialCapacity, float loadFactor)
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ConcurrentHashMapWithProducer
public ConcurrentHashMapWithProducer(int initialCapacity)
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