Package co.aikar.util

Class MRUMapCache<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

co.aikar.util.MRUMapCache<K,V>

Type Parameters:

K - Key Type of the Map

V - Value Type of the Map

All Implemented Interfaces:

Map<K,V>

public class MRUMapCache<K,V>
extends AbstractMap<K,V>

Implements a Most Recently Used cache in front of a backing map, to quickly access the last accessed result.

Nested Class Summary

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
MRUMapCache(@NotNull Map<K,V> backingMap)

Method Summary

Modifier and Type	Method	Description
void	clear()
boolean	containsKey(@Nullable Object key)
boolean	containsValue(@Nullable Object value)
@NotNull Set<Map.Entry<K,V>>	entrySet()
V	get(@Nullable Object key)
boolean	isEmpty()
@NotNull Set<K>	keySet()
static <K,V> @NotNull Map<K,V>	of(@NotNull Map<K,V> map)	Wraps the specified map with a most recently used cache
V	put(K key, V value)
void	putAll(@NotNull Map<? extends K,? extends V> m)
V	remove(@Nullable Object key)
int	size()
@NotNull Collection<V>	values()

Methods inherited from class java.util.AbstractMap

clone, equals, hashCode, toString

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Methods inherited from class java.lang.Object

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

Constructor Detail

MRUMapCache

public MRUMapCache(@NotNull
                   @NotNull Map<K,V> backingMap)

Method Detail

size

public int size()

Specified by:

size in interface Map<K,V>

Overrides:

size in class AbstractMap<K,V>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<K,V>

Overrides:

isEmpty in class AbstractMap<K,V>

containsKey

public boolean containsKey(@Nullable
                           @Nullable Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class AbstractMap<K,V>

containsValue

public boolean containsValue(@Nullable
                             @Nullable Object value)

Specified by:

containsValue in interface Map<K,V>

Overrides:

containsValue in class AbstractMap<K,V>

get

@Nullable
public V get(@Nullable
             @Nullable Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class AbstractMap<K,V>

put

@Nullable
public V put(@Nullable
             K key,
             @Nullable
             V value)

Specified by:

put in interface Map<K,V>

Overrides:

put in class AbstractMap<K,V>

remove

@Nullable
public V remove(@Nullable
                @Nullable Object key)

Specified by:

remove in interface Map<K,V>

Overrides:

remove in class AbstractMap<K,V>

putAll

public void putAll(@NotNull
                   @NotNull Map<? extends K,? extends V> m)

Specified by:

putAll in interface Map<K,V>

Overrides:

putAll in class AbstractMap<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

Overrides:

clear in class AbstractMap<K,V>

keySet

@NotNull
public @NotNull Set<K> keySet()

Specified by:

keySet in interface Map<K,V>

Overrides:

keySet in class AbstractMap<K,V>

values

@NotNull
public @NotNull Collection<V> values()

Specified by:

values in interface Map<K,V>

Overrides:

values in class AbstractMap<K,V>

entrySet

@NotNull
public @NotNull Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>

of

@NotNull
public static <K,V> @NotNull Map<K,V> of(@NotNull
                                         @NotNull Map<K,V> map)

Wraps the specified map with a most recently used cache

Type Parameters:

K - Key Type of the Map

V - Value Type of the Map

Parameters:

map - Map to be wrapped

Returns:

Map