Package com.globalmentor.collections

Class CopyOnWriteArrayListConcurrentHashMap<K,V>

java.lang.Object

com.globalmentor.collections.MapDecorator<K,C>

com.globalmentor.collections.AbstractDecoratorCollectionMap<K,V,List<V>>

com.globalmentor.collections.CopyOnWriteArrayListConcurrentHashMap<K,V>

All Implemented Interfaces:

CollectionMap<K,V,List<V>>, Map<K,List<V>>

public class CopyOnWriteArrayListConcurrentHashMap<K,V>
extends AbstractDecoratorCollectionMap<K,V,List<V>>

An implementation of a ConcurrentHashMap that stores a CopyOnWriteArrayList of values for each key, with special methods for retrieving single values.

Author:

Garret Wilson

Nested Class Summary

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

Map.Entry<K extends Object,V extends Object>

Field Summary

Fields inherited from class com.globalmentor.collections.MapDecorator

map

Constructor Summary

Constructors

Constructor	Description
CopyOnWriteArrayListConcurrentHashMap()	Default constructor that decorates a ConcurrentHashMap.

Method Summary

Modifier and Type	Method	Description
List<V>	createCollection()	Creates a collection in which to store values.

Methods inherited from class com.globalmentor.collections.AbstractDecoratorCollectionMap

addItem, getCollection, getItem, getItemCount, getItems, hasItems, removeItem

Methods inherited from class com.globalmentor.collections.MapDecorator

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Constructor Details

CopyOnWriteArrayListConcurrentHashMap

public CopyOnWriteArrayListConcurrentHashMap()

Default constructor that decorates a ConcurrentHashMap.

Method Details

createCollection

public List<V> createCollection()

Creates a collection in which to store values. This version returns an ArrayList.

Returns:

The collections with the values stored.