Package org.apache.juneau.internal

Class TwoKeyConcurrentCache<K1,K2,V>

java.lang.Object

java.util.AbstractMap<K,V>

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

org.apache.juneau.internal.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.internal.TwoKeyConcurrentCache.Key<K1,K2>,V>, Map<org.apache.juneau.internal.TwoKeyConcurrentCache.Key<K1,K2>,V>

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

A hashmap that allows for two-part keys.

See Also:

Nested Class Summary

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

ConcurrentHashMap.KeySetView<K extends Object,V extends Object>

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

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

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

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

Constructor Summary

Constructors

Constructor	Description
TwoKeyConcurrentCache()	Constructor.
TwoKeyConcurrentCache(boolean disabled, BiFunction<K1,K2,V> supplier)	Constructor.

Method Summary

Modifier and Type	Method	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 Details

TwoKeyConcurrentCache

public TwoKeyConcurrentCache()

Constructor.

TwoKeyConcurrentCache

public TwoKeyConcurrentCache(boolean disabled,
 BiFunction<K1,K2,V> supplier)

Constructor.

Parameters:

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

supplier - The supplier for this cache.

Method Details

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.