ConcurrentHashMapWithProducer (Apache UIMA Java SDK 2.6.0 User-Level API Documentation)

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.concurrent.ConcurrentHashMap<K,V>
  - - org.apache.uima.util.ConcurrentHashMapWithProducer<K,V>

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

Nested Class Summary
- Nested classes/interfaces inherited from class java.util.AbstractMap
  java.util.AbstractMap.SimpleEntry<K,V>, java.util.AbstractMap.SimpleImmutableEntry<K,V>
- Nested classes/interfaces inherited from interface java.util.Map
  java.util.Map.Entry<K,V>

Constructor Summary

Constructors
Constructor and 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)`

Method Summary

Methods
Modifier and Type Method and Description

V get(K key, java.util.concurrent.Callable<V> valueProducer)
- Methods inherited from class java.util.concurrent.ConcurrentHashMap
  clear, contains, containsKey, containsValue, elements, entrySet, get, isEmpty, keys, keySet, put, putAll, putIfAbsent, remove, remove, replace, replace, size, values
- Methods inherited from class java.util.AbstractMap
  clone, equals, hashCode, toString
- Methods inherited from class java.lang.Object
  finalize, getClass, notify, notifyAll, wait, wait, wait
- Methods inherited from interface java.util.Map
  equals, hashCode

Methods
Modifier and Type	Method and Description
`V`	`get(K key, java.util.concurrent.Callable<V> valueProducer)`

Constructor Detail

ConcurrentHashMapWithProducer
```
public ConcurrentHashMapWithProducer()
```

ConcurrentHashMapWithProducer

public ConcurrentHashMapWithProducer(int initialCapacity,
                             float loadFactor,
                             int concurrencyLevel)

ConcurrentHashMapWithProducer

public ConcurrentHashMapWithProducer(int initialCapacity,
                             float loadFactor)

ConcurrentHashMapWithProducer

public ConcurrentHashMapWithProducer(int initialCapacity)

ConcurrentHashMapWithProducer

public ConcurrentHashMapWithProducer(java.util.Map<? extends K,? extends V> m)

Method Detail

get

public V get(K key,
    java.util.concurrent.Callable<V> valueProducer)
      throws java.lang.Exception

Throws:: java.lang.Exception

Class ConcurrentHashMapWithProducer<K,V>

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

Nested classes/interfaces inherited from interface java.util.Map

Constructor Summary

Method Summary

Methods inherited from class java.util.concurrent.ConcurrentHashMap

Methods inherited from class java.util.AbstractMap

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Map

Constructor Detail

ConcurrentHashMapWithProducer

ConcurrentHashMapWithProducer

ConcurrentHashMapWithProducer

ConcurrentHashMapWithProducer

ConcurrentHashMapWithProducer

Method Detail

get