org.apache.juneau.utils

Class TwoKeyConcurrentCache<K1,K2,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.concurrent.ConcurrentHashMap<org.apache.juneau.utils.TwoKeyConcurrentCache.Key<K1,K2>,V>

org.apache.juneau.utils.TwoKeyConcurrentCache<K1,K2,V>

Type Parameters:

K1 - Key part 1 type.

K2 - Key part 2 type.

V - Value type.

All Implemented Interfaces:

Serializable, ConcurrentMap<org.apache.juneau.utils.TwoKeyConcurrentCache.Key<K1,K2>,V>, Map<org.apache.juneau.utils.TwoKeyConcurrentCache.Key<K1,K2>,V>

public class TwoKeyConcurrentCache<K1,K2,V>
extends ConcurrentHashMap<org.apache.juneau.utils.TwoKeyConcurrentCache.Key<K1,K2>,V>

A hashmap that allows for two-part keys.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.ConcurrentHashMap

ConcurrentHashMap.KeySetView<K,V>

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

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

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

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
TwoKeyConcurrentCache() Constructor.
TwoKeyConcurrentCache(boolean disabled) Constructor.

Method Summary

Modifier and Type	Method and Description
V	get(K1 key1, K2 key2) Retrieves an entry from this map.
V	put(K1 key1, K2 key2, V value) Adds an entry to this map.

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

Methods inherited from class java.util.AbstractMap

clone

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

TwoKeyConcurrentCache

public TwoKeyConcurrentCache()

Constructor.

TwoKeyConcurrentCache

public TwoKeyConcurrentCache(boolean disabled)

Constructor.

Parameters:

disabled - If true, get/put operations are no-ops.

Method Detail

put

public V put(K1 key1,
             K2 key2,
             V value)

Adds an entry to this map.

Parameters:

key1 - Key part 1. Can be null.

key2 - Key part 2. Can be null.

value - Value.

Returns:

The previous value if there was one.

get

public V get(K1 key1,
             K2 key2)

Retrieves an entry from this map.

Parameters:

key1 - Key part 1. Can be null.

key2 - Key part 2. Can be null.

Returns:

The previous value if there was one.